The document summarizes the solution to the game of NIM. It explores the game through examples with small numbers of coins and identifies losing positions (LPs). Through this exploration, it is determined that a position is an LP if, when the coin amounts are written in binary, there is an even number of 1's in each column. A theorem is provided to prove this, along with remarks about the probability of starting positions.
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Perennial Energy Crops For Semiarid Lands in the MediterraneanEmiliano Maletta
The aim of this report is to demonstrate and evaluate the potential of Elytrigia elongata to
avoid GHG emissions and obtain lower economic costs in marginal areas of Spain and the
Mediterranean region. Our research built scenarios based on experimental plots (2 years growth) in
three locations of Spain with very different climate conditions (provinces of Girona, Soria and
Palencia). In our experiences, we achieved an adequate establishment and biomass production in the
second year in the plots, and assumed yields until the end of the life cycle (estimated in 15 years in many
other studies in United States, Argentina and Eastern Europe). Using data from the experimental plots,
statistical information for economic inputs costs, and the scenarios built, we estimated GHG emissions
savings and compared them to the rank of biomass yields obtained from annual grasses (oats, triticale
and rye) in a large range of environmental conditions (yields of perennial grasses from 3 to 13
odt/ha.year). GHG emissions savings were calculated replacing natural gas electricity with electricity
from biomass combustion in a real centralised power plant in Spain. The assessment included GHG
emissions savings and energy balance for the mentioned yields rank, estimated economic costs for the
achieved biomass and compared with the biomass costs from the winter annual grasses of our previous
study. The preliminary evaluation results suggest that the use of C3 perennial crops, like tall wheatgrass
in marginal areas of Spain for electricity production might present a better performance in terms of
energy yields, costs of the electricity and GHG savings, than utilizing annual grasses
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Perennial Energy Crops For Semiarid Lands in the MediterraneanEmiliano Maletta
The aim of this report is to demonstrate and evaluate the potential of Elytrigia elongata to
avoid GHG emissions and obtain lower economic costs in marginal areas of Spain and the
Mediterranean region. Our research built scenarios based on experimental plots (2 years growth) in
three locations of Spain with very different climate conditions (provinces of Girona, Soria and
Palencia). In our experiences, we achieved an adequate establishment and biomass production in the
second year in the plots, and assumed yields until the end of the life cycle (estimated in 15 years in many
other studies in United States, Argentina and Eastern Europe). Using data from the experimental plots,
statistical information for economic inputs costs, and the scenarios built, we estimated GHG emissions
savings and compared them to the rank of biomass yields obtained from annual grasses (oats, triticale
and rye) in a large range of environmental conditions (yields of perennial grasses from 3 to 13
odt/ha.year). GHG emissions savings were calculated replacing natural gas electricity with electricity
from biomass combustion in a real centralised power plant in Spain. The assessment included GHG
emissions savings and energy balance for the mentioned yields rank, estimated economic costs for the
achieved biomass and compared with the biomass costs from the winter annual grasses of our previous
study. The preliminary evaluation results suggest that the use of C3 perennial crops, like tall wheatgrass
in marginal areas of Spain for electricity production might present a better performance in terms of
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Remarkability, Standing Out From The Crowd:
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The Collatz conjecture can be summarised as follows: take any positive integer n. If n is even, divide it by 2 to get n/2. If n is odd, multiply it by 3 and add 1 to obtain 3n+1. Repeat
the process indefinitly. The conjecture is that no matter what number you start with, you will always eventually reach 1.
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Maximizing Your Streaming Experience with XCIPTV- Tips for 2024.pdfXtreame HDTV
In today’s digital age, streaming services have become an integral part of our entertainment lives. Among the myriad of options available, XCIPTV stands out as a premier choice for those seeking seamless, high-quality streaming. This comprehensive guide will delve into the features, benefits, and user experience of XCIPTV, illustrating why it is a top contender in the IPTV industry.
From Slave to Scourge: The Existential Choice of Django Unchained. The Philos...Rodney Thomas Jr
#SSAPhilosophy #DjangoUnchained #DjangoFreeman #ExistentialPhilosophy #Freedom #Identity #Justice #Courage #Rebellion #Transformation
Welcome to SSA Philosophy, your ultimate destination for diving deep into the profound philosophies of iconic characters from video games, movies, and TV shows. In this episode, we explore the powerful journey and existential philosophy of Django Freeman from Quentin Tarantino’s masterful film, "Django Unchained," in our video titled, "From Slave to Scourge: The Existential Choice of Django Unchained. The Philosophy of Django Freeman!"
From Slave to Scourge: The Existential Choice of Django Unchained – The Philosophy of Django Freeman!
Join me as we delve into the existential philosophy of Django Freeman, uncovering the profound lessons and timeless wisdom his character offers. Through his story, we find inspiration in the power of choice, the quest for justice, and the courage to defy oppression. Django Freeman’s philosophy is a testament to the human spirit’s unyielding drive for freedom and justice.
Don’t forget to like, comment, and subscribe to SSA Philosophy for more in-depth explorations of the philosophies behind your favorite characters. Hit the notification bell to stay updated on our latest videos. Let’s discover the principles that shape these icons and the profound lessons they offer.
Django Freeman’s story is one of the most compelling narratives of transformation and empowerment in cinema. A former slave turned relentless bounty hunter, Django’s journey is not just a physical liberation but an existential quest for identity, justice, and retribution. This video delves into the core philosophical elements that define Django’s character and the profound choices he makes throughout his journey.
Link to video: https://youtu.be/GszqrXk38qk
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Young Tom Selleck: A Journey Through His Early Years and Rise to Stardomgreendigital
Introduction
When one thinks of Hollywood legends, Tom Selleck is a name that comes to mind. Known for his charming smile, rugged good looks. and the iconic mustache that has become synonymous with his persona. Tom Selleck has had a prolific career spanning decades. But, the journey of young Tom Selleck, from his early years to becoming a household name. is a story filled with determination, talent, and a touch of luck. This article delves into young Tom Selleck's life, background, early struggles. and pivotal moments that led to his rise in Hollywood.
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Early Life and Background
Family Roots and Childhood
Thomas William Selleck was born in Detroit, Michigan, on January 29, 1945. He was the second of four children in a close-knit family. His father, Robert Dean Selleck, was a real estate investor and executive. while his mother, Martha Selleck, was a homemaker. The Selleck family relocated to Sherman Oaks, California. when Tom was a child, setting the stage for his future in the entertainment industry.
Education and Early Interests
Growing up, young Tom Selleck was an active and athletic child. He attended Grant High School in Van Nuys, California. where he excelled in sports, particularly basketball. His tall and athletic build made him a standout player, and he earned a basketball scholarship to the University of Southern California (U.S.C.). While at U.S.C., Selleck studied business administration. but his interests shifted toward acting.
Discovery of Acting Passion
Tom Selleck's journey into acting was serendipitous. During his time at U.S.C., a drama coach encouraged him to try acting. This nudge led him to join the Hills Playhouse, where he began honing his craft. Transitioning from an aspiring athlete to an actor took time. but young Tom Selleck became drawn to the performance world.
Early Career Struggles
Breaking Into the Industry
The path to stardom was a challenging one for young Tom Selleck. Like many aspiring actors, he faced many rejections and struggled to find steady work. A series of minor roles and guest appearances on television shows marked his early career. In 1965, he debuted on the syndicated show "The Dating Game." which gave him some exposure but did not lead to immediate success.
The Commercial Breakthrough
During the late 1960s and early 1970s, Selleck began appearing in television commercials. His rugged good looks and charismatic presence made him a popular brand choice. He starred in advertisements for Pepsi-Cola, Revlon, and Close-Up toothpaste. These commercials provided financial stability and helped him gain visibility in the industry.
Struggling Actor in Hollywood
Despite his success in commercials. breaking into large acting roles remained a challenge for young Tom Selleck. He auditioned and took on small parts in T.V. shows and movies. Some of his early television appearances included roles in popular series like Lancer, The F.B.I., and Bracken's World. But, it would take a
Meet Dinah Mattingly – Larry Bird’s Partner in Life and Loveget joys
Get an intimate look at Dinah Mattingly’s life alongside NBA icon Larry Bird. From their humble beginnings to their life today, discover the love and partnership that have defined their relationship.
In the vast landscape of cinema, stories have been told, retold, and reimagined in countless ways. At the heart of this narrative evolution lies the concept of a "remake". A successful remake allows us to revisit cherished tales through a fresh lens, often reflecting a different era's perspective or harnessing the power of advanced technology. Yet, the question remains, what makes a remake successful? Today, we will delve deeper into this subject, identifying the key ingredients that contribute to the success of a remake.
From the Editor's Desk: 115th Father's day Celebration - When we see Father's day in Hindu context, Nanda Baba is the most vivid figure which comes to the mind. Nanda Baba who was the foster father of Lord Krishna is known to provide love, care and affection to Lord Krishna and Balarama along with his wife Yashoda; Letter’s to the Editor: Mother's Day - Mother is a precious life for their children. Mother is life breath for her children. Mother's lap is the world happiness whose debt can never be paid.
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Monday, 3 June 2024
Episode 47
A friend is compelled to expose a manipulative scheme to prevent another from making a grave mistake. In a frantic bid to save Jojo, Phakamile agrees to a meeting that unbeknownst to her, will seal her fate.
Tuesday, 4 June 2024
Episode 48
A mother, with her son's best interests at heart, finds him unready to heed her advice. Motshabi finds herself in an unmanageable situation, sinking fast like in quicksand.
Wednesday, 5 June 2024
Episode 49
A woman fabricates a diabolical lie to cover up an indiscretion. Overwhelmed by guilt, she makes a spontaneous confession that could be devastating to another heart.
Thursday, 6 June 2024
Episode 50
Linda unwittingly discloses damning information. Nhlamulo and Vuvu try to guide their friend towards the right decision.
Friday, 7 June 2024
Episode 51
Jojo's life continues to spiral out of control. Dintle weaves a web of lies to conceal that she is not as successful as everyone believes.
Monday, 10 June 2024
Episode 52
A heated confrontation between lovers leads to a devastating admission of guilt. Dintle's desperation takes a new turn, leaving her with dwindling options.
Tuesday, 11 June 2024
Episode 53
Unable to resort to violence, Taps issues a verbal threat, leaving Mdala unsettled. A sister must explain her life choices to regain her brother's trust.
Wednesday, 12 June 2024
Episode 54
Winnie makes a very troubling discovery. Taps follows through on his threat, leaving a woman reeling. Layla, oblivious to the truth, offers an incentive.
Thursday, 13 June 2024
Episode 55
A nosy relative arrives just in time to thwart a man's fatal decision. Dintle manipulates Khanyi to tug at Mo's heartstrings and get what she wants.
Friday, 14 June 2024
Episode 56
Tlhogi is shocked by Mdala's reaction following the revelation of their indiscretion. Jojo is in disbelief when the punishment for his crime is revealed.
Monday, 17 June 2024
Episode 57
A woman reprimands another to stay in her lane, leading to a damning revelation. A man decides to leave his broken life behind.
Tuesday, 18 June 2024
Episode 58
Nhlamulo learns that due to his actions, his worst fears have come true. Caiphus' extravagant promises to suppliers get him into trouble with Ndu.
Wednesday, 19 June 2024
Episode 59
A woman manages to kill two birds with one stone. Business doom looms over Chillax. A sobering incident makes a woman realize how far she's fallen.
Thursday, 20 June 2024
Episode 60
Taps' offer to help Nhlamulo comes with hidden motives. Caiphus' new ideas for Chillax have MaHilda excited. A blast from the past recognizes Dintle, not for her newfound fame.
Friday, 21 June 2024
Episode 61
Taps is hungry for revenge and finds a rope to hang Mdala with. Chillax's new job opportunity elicits mixed reactions from the public. Roommates' initial meeting starts off on the wrong foot.
Monday, 24 June 2024
Episode 62
Taps seizes new information and recruits someone on the inside. Mary's new job
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Monday, June 3, 2024 - Episode 241: Sergeant Rathebe nabs a top scammer in Turfloop. Meikie is furious at her uncle's reaction to the truth about Ntswaki.
Tuesday, June 4, 2024 - Episode 242: Babeile uncovers the truth behind Rathebe’s latest actions. Leeto's announcement shocks his employees, and Ntswaki’s ordeal haunts her family.
Wednesday, June 5, 2024 - Episode 243: Rathebe blocks Babeile from investigating further. Melita warns Eunice to stay clear of Mr. Kgomo.
Thursday, June 6, 2024 - Episode 244: Tbose surrenders to the police while an intruder meddles in his affairs. Rathebe's secret mission faces a setback.
Friday, June 7, 2024 - Episode 245: Rathebe’s antics reach Kganyago. Tbose dodges a bullet, but a nightmare looms. Mr. Kgomo accuses Melita of witchcraft.
Monday, June 10, 2024 - Episode 246: Ntswaki struggles on her first day back at school. Babeile is stunned by Rathebe’s romance with Bullet Mabuza.
Tuesday, June 11, 2024 - Episode 247: An unexpected turn halts Rathebe’s investigation. The press discovers Mr. Kgomo’s affair with a young employee.
Wednesday, June 12, 2024 - Episode 248: Rathebe chases a criminal, resorting to gunfire. Turf High is rife with tension and transfer threats.
Thursday, June 13, 2024 - Episode 249: Rathebe traps Kganyago. John warns Toby to stop harassing Ntswaki.
Friday, June 14, 2024 - Episode 250: Babeile is cleared to investigate Rathebe. Melita gains Mr. Kgomo’s trust, and Jacobeth devises a financial solution.
Monday, June 17, 2024 - Episode 251: Rathebe feels the pressure as Babeile closes in. Mr. Kgomo and Eunice clash. Jacobeth risks her safety in pursuit of Kganyago.
Tuesday, June 18, 2024 - Episode 252: Bullet Mabuza retaliates against Jacobeth. Pitsi inadvertently reveals his parents’ plans. Nkosi is shocked by Khwezi’s decision on LJ’s future.
Wednesday, June 19, 2024 - Episode 253: Jacobeth is ensnared in deceit. Evelyn is stressed over Toby’s case, and Letetswe reveals shocking academic results.
Thursday, June 20, 2024 - Episode 254: Elizabeth learns Jacobeth is in Mpumalanga. Kganyago's past is exposed, and Lehasa discovers his son is in KZN.
Friday, June 21, 2024 - Episode 255: Elizabeth confirms Jacobeth’s dubious activities in Mpumalanga. Rathebe lies about her relationship with Bullet, and Jacobeth faces theft accusations.
Monday, June 24, 2024 - Episode 256: Rathebe spies on Kganyago. Lehasa plans to retrieve his son from KZN, fearing what awaits.
Tuesday, June 25, 2024 - Episode 257: MaNtuli fears for Kwaito’s safety in Mpumalanga. Mr. Kgomo and Melita reconcile.
Wednesday, June 26, 2024 - Episode 258: Kganyago makes a bold escape. Elizabeth receives a shocking message from Kwaito. Mrs. Khoza defends her husband against scam accusations.
Thursday, June 27, 2024 - Episode 259: Babeile's skillful arrest changes the game. Tbose and Kwaito face a hostage crisis.
Friday, June 28, 2024 - Episode 260: Two women face the reality of being scammed. Turf is rocked by breaking
Panchayat Season 3 - Official Trailer.pdfSuleman Rana
The dearest series "Panchayat" is set to make a victorious return with its third season, and the fervor is discernible. The authority trailer, delivered on May 28, guarantees one more enamoring venture through the country heartland of India.
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As a film director, I have always been awestruck by the magic of animation. Animation, a medium once considered solely for the amusement of children, has undergone a significant transformation over the years. Its evolution from a rudimentary form of entertainment to a sophisticated form of storytelling has stirred my creativity and expanded my vision, offering limitless possibilities in the realm of cinematic storytelling.
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Tom Selleck Net Worth: A Comprehensive Analysisgreendigital
Over several decades, Tom Selleck, a name synonymous with charisma. From his iconic role as Thomas Magnum in the television series "Magnum, P.I." to his enduring presence in "Blue Bloods," Selleck has captivated audiences with his versatility and charm. As a result, "Tom Selleck net worth" has become a topic of great interest among fans. and financial enthusiasts alike. This article delves deep into Tom Selleck's wealth, exploring his career, assets, endorsements. and business ventures that contribute to his impressive economic standing.
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Early Life and Career Beginnings
The Foundation of Tom Selleck's Wealth
Born on January 29, 1945, in Detroit, Michigan, Tom Selleck grew up in Sherman Oaks, California. His journey towards building a large net worth began with humble origins. , Selleck pursued a business administration degree at the University of Southern California (USC) on a basketball scholarship. But, his interest shifted towards acting. leading him to study at the Hills Playhouse under Milton Katselas.
Minor roles in television and films marked Selleck's early career. He appeared in commercials and took on small parts in T.V. series such as "The Dating Game" and "Lancer." These initial steps, although modest. laid the groundwork for his future success and the growth of Tom Selleck net worth. Breakthrough with "Magnum, P.I."
The Role that Defined Tom Selleck's Career
Tom Selleck's breakthrough came with the role of Thomas Magnum in the CBS television series "Magnum, P.I." (1980-1988). This role made him a household name and boosted his net worth. The series' popularity resulted in Selleck earning large salaries. leading to financial stability and increased recognition in Hollywood.
"Magnum P.I." garnered high ratings and critical acclaim during its run. Selleck's portrayal of the charming and resourceful private investigator resonated with audiences. making him one of the most beloved television actors of the 1980s. The success of "Magnum P.I." played a pivotal role in shaping Tom Selleck net worth, establishing him as a major star.
Film Career and Diversification
Expanding Tom Selleck's Financial Portfolio
While "Magnum, P.I." was a cornerstone of Selleck's career, he did not limit himself to television. He ventured into films, further enhancing Tom Selleck net worth. His filmography includes notable movies such as "Three Men and a Baby" (1987). which became the highest-grossing film of the year, and its sequel, "Three Men and a Little Lady" (1990). These box office successes contributed to his wealth.
Selleck's versatility allowed him to transition between genres. from comedies like "Mr. Baseball" (1992) to westerns such as "Quigley Down Under" (1990). This diversification showcased his acting range. and provided many income streams, reinforcing Tom Selleck net worth.
Television Resurgence with "Blue Bloods"
Sustaining Wealth through Consistent Success
In 2010, Tom Selleck began starring as Frank Reagan i
1. Solution
Week 90 (5/31/04)
The game of NIM
As with many problems, this one can be solved in two possible ways. We can (1)
write down the correct answer, through some stroke of genius, and then verify that it
works, or (2) work out some simple cases, get a feel for the problem, and eventually
wind our way around to the correct answer. For the problem at hand, let’s proceed
via the second method and try to arrive at the answer with some motivation.
We’ll start by working out what happens in particular cases of small numbers of
coins in the piles, and then we’ll look for a pattern. A reasonable way to organize
the results is to determine which combinations of numbers are guaranteed losing
positions (assuming that both players are aware of the optimal strategy).
The most obvious losing position (LP) is piles with coins of numbers (1,1,0). If
you encounter this setup, you must pick one coin, and then your opponent will pick
the last one and thereby win. More generally, the combination (N, N, 0) is an LP,
because if you take off n coins from one pile, your opponent will take off n coins
from the other. He will keep matching you on each turn, until finally the situation is
(0,0,0), with his having removed the last coin(s). Note that situations of (N, M, 0)
and (N, N, M) are therefore winning positions (WP), because it is possible to turn
them into an LP with one move.
This reasoning utilizes the following two obvious properties that an LP must
have: (1) removal of any number of coins from one pile of an LP creates a non-LP,
and (2) on the next turn it is always possible to bring the situation back to an LP
again.
Consider now the cases where no two piles have the same numbers of coins. The
smallest case is (1,2,x). x = 3 is the first possibility for an LP, and we quickly see
that it is indeed an LP, because the removal of any number of coins from any of the
piles yields a setup of the from (N, M, 0) or (N, N, M), which are WP’s, as we saw
above.
Note that once we have found an LP, we know that any triplet that has two
numbers in common with the LP, with its remaining number larger than that in
the LP, must be a WP. This is true because it is possible to turn it into an LP by
removing coins from this last pile.
If we look at other triplets in which the first number is 1, we find that (1,4,5),
(1,6,7), (1,8,9), etc., are LP’s, as you can check by showing that any move turns
them into a WP.
Now consider cases where 2 is the smallest number of coins in a pile. We find,
after a little fiddling, that (2,4,6), (2,5,7), (2,8,10), and (2,9,11), etc., are LP’s, as
you can check.
Similar fiddling, starting with a 3, gives (3,4,7), (3,5,6), (3,8,11), and (3,9,10),
etc., as LP’s.
Let’s now make a table of this hodgepodge of results, for up to seven coins in a
pile. The two axes will be the first two numbers in an LP triplet, and the entry in
the table will be the third. The table is of course symmetric.
1
2. 0 1 2 3 4 5 6 7
0 0 1 2 3 4 5 6 7
1 1 0 3 2 5 4 7 6
2 2 3 0 1 6 7 4 5
3 3 2 1 0 7 6 5 4
4 4 5 6 7 0 1 2 3
5 5 4 7 6 1 0 3 2
6 6 7 4 5 2 3 0 1
7 7 6 5 4 3 2 1 0
As a first guess at the key to this table, we might say that two numbers in an LP
triplet must add up to the third. This, however, does not work for the (3,5,6) triplet.
It also does not work for the (3,9,10) triplet that we found above. Continuing on
to higher numbers, the guess seems to work for triplets starting with a 4. But then
if we start with a 5, we eventually find the LP triplets (5,9,12) and (5,11,14), for
which the sum of two numbers doesn’t equal the third.
In an effort to find the key, let us exploit the patterns in the table, perhaps
brought out best by the following grouping:
0 1 2 3 4 5 6 7
1 0 3 2 5 4 7 6
2 3 0 1 6 7 4 5
3 2 1 0 7 6 5 4
4 5 6 7 0 1 2 3
5 4 7 6 1 0 3 2
6 7 4 5 2 3 0 1
7 6 5 4 3 2 1 0
The entries in the upper right 4×4 box are 4 more than the corresponding entries
in the upper left box. Likewise, within each 4×4 box, the entries in the upper right
2 × 2 box are 2 more than the entries in the upper left box. Similar results would
be evident if we doubled the size of the box (out to 15), where we would see 8 × 8
boxes having entries differing by 8.
All this suggests that powers of 2 are important in this problem. We therefore
should consider writing the numbers in a way where factors of 2 are evident, that
is, in base 2. There is no guarantee that this will help, but let’s try it and see what
happens. Let’s write down the troublesome triplets we’ve found (the ones for which
two of the numbers don’t add up to the third) in base 2:
3: 11 3: 11 5: 101 5: 101
5: 101 9: 1001 9: 1001 11: 1011
6: 110 10: 1010 12: 1100 14: 1110
What property do these triplets have? When written in the above form, we see
that each column in base 2 contains an even number of 1’s. After checking some
2
3. other triplets, this appears to be true in general for an LP. We will prove this with
the following theorem.
Theorem: Call a triplet an E-triplet (the “E” stands for “even”) if it has the
following property: When the three numbers are written in base 2, there is an even
number (that is, either zero or two) of 1’s in each digit’s place. Then a triplet is a
losing position (LP) if and only if it is an E-triplet.
Proof: Let us establish the following three facts concerning E-triplets:
1. Removal of any number of coins from one pile of an E-triplet will turn the
triplet into a non-E-triplet.
2. Given a non-E-triplet, it is always possible to remove coins from one pile to
turn the triplet into an E-triplet.
3. (0,0,0) is an E-triplet.
These facts may be demonstrated as follows:
1. This is true because any two numbers in an E-triplet uniquely determine the
third.
2. We will describe how to turn any non-E-triplet into an E-triplet. Write the
three numbers of coins in base 2, and put them in a column, with the unit’s
digits aligned, as we did above. Starting from the left, look at each digit’s
column until you find a column with an odd number (that is, either one or
three) of 1’s. Let this be the nth column (counting from the right).
If there is one 1 in the nth column, label the number containing this 1 as
A. If there are three 1’s, then arbitrarily pick any of the numbers to be A.
Remove coins from A by switching the 1 in the nth column to a 0, and also by
switching any 1’s to 0’s, or 0’s to 1’s, in other columns to the right of the nth
column, in order to produce an even number or 1’s is all columns. We have
now created an E-triplet.
Note that this switching of 1’s and 0’s does indeed correspond to removing
(as opposed to adding) coins from A, because even if all the columns to the
right of the nth column involve switching 0’s to 1’s, this addition of 2n−1 − 1
coins is still less than the subtraction of the 2n−1 coins arising from the 1-to-0
switch in the nth column.
3. This is true, by definition of an E-triplet.
The first two of these facts show that if player X receives an E-triplet on a given
turn, then player Y can ensure that X receives an E-triplet on every subsequent
turn. Therefore, X must always create a non-E-triplet, by the first of the three
facts. X therefore cannot take the last coin, because he cannot create the E-triplet
(0, 0, 0). Therefore, an E-triplet is a losing position.
The best strategy in this game is therefore to give your opponent an E-triplet
whenever you can. If both players are aware of this strategy, then the outcome of
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4. the game is determined by the initial piles of coins. If they form an E-triplet, then
the player who goes first loses. If they do not form an E-triplet, then the player who
goes first wins, because he can always create an E-triplet to give to his opponent.
Remarks: If the starting numbers of coins are random, then the player who goes first will
most likely win, because most triplets are not E-triplets. We can demonstrate this fact by
using the somewhat crude scenario where the three numbers are random numbers from 0 to
2n
− 1, that is, they each have n digits in base 2 (many of which may be zero). Then there
are (2n
)3
possible triplets. But there are only 4n
possible E-triplets, because each of the n
columns of three digits (when we write the three numbers on top of each other) has four
E-triplet possibilities: 0,0,0; 1,1,0; 1,0,1; and 0,1,1. The fraction of E-triplets is therefore
4n
/23n
= 2−n
, which goes to zero for large n.
Note that there is nothing special about having three piles. We can have any number of
piles (but still two players), and all the above reasoning still holds. Losing positions are the
ones that have an even number of 1’s in each column, when written in base 2. The three
facts in the above theorem still hold.
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