One dimensional arrays use a single subscript to access elements and can be initialized using curly braces. Two dimensional arrays, also called matrices, use two subscripts to access elements and are initialized with two sets of square brackets. Common array operations include traversing arrays with for loops, finding the maximum/minimum element, calculating averages, and string operations like concatenation, copying and comparison using standard C library functions.

2. Element)”

3. String)

4. 1.
One Dimensional Array)
subscript
type array-name[n];
type
array-name

5. Two Dimensional
Array)
Matrix
type array-name[r][c];
type
array-name
r

6. 2.
int num[3] = {5, 7, 4};
num[0] = 5, num[1] = 7, num[2] =
4
char na e[4] = {„J‟, „a‟, „c‟, „k‟};

7. 2.
float score[10];
…
for (i = 0; i < 10; i++) {
printf(“nEnter students score:
”);
scanf(“ %f”, &score[i]);
for
i
score i

8. i = 0;
while (!feof (scorefile)) {
fscanf (scorefile, “ %f”,
&score[i]);
i = i+1;
scorefile score

9. 3.
for (i = 0; i < 5; i++) {
printf(“n %5.2f”, score[i])
score

10. 4.
int num [9] = {78, 34, 69, 80,
75, 44, 57, 39, 50};
int maxnum = 0;
…
for (i = 0; i < 9; i++) {
if (num [i] > maxnum) {

11. num
maxnum
num
maxnum
maxnum
num
maxnum

12. float score[7] = {43.5, 44.3, 36.3, 28.0,
34.8, 37.6, 49.3};
float total = 0;
float avg;
for (i = 0; i < 7; i++) {
total = total + score [i];
avg = total / 7;
score
total
score
total

13. String)
string)
char code[6];
[0] [1] [2] [3]
[4] [5]
code
1 1 1 1
1 1
byte byte byte byte

14. char name[ ] = “MWIT School”;
[0] [1] [2] [3] [4] [5] [6]
[7] [8] [9] [10] [11]
name
1 1 1 1 1 1 1
1 1 1 1 1
byte byte byte byte byte byte byte
byte byte byte byte byte
M W I T S c h o o L 0

15. 2.
scanf(“%s”, scanf(“%s”,name); //
name
gets( gets(name);
printf(“%s”, printf(“%s”,name);
puts( puts(name);

16. 3.
string.h
Header File
.

17. srting1
string2 string1
string 2 string2
char name1[20] = “Jack ”;
char name2[10] = “Rose”;
…
strcat (name1, name2);
name1 = “Jack Rose” name 2
= “Rose”

18. strcpy (string1, string2);
srting2 string1
string1
string1 string2
char name1[20] = “Jack ”;
char name2[10] = “Rose Apple”;
…
Strcpy (name1, name2);
namel = “Rose Apple” name 2 =
“Rose Apple”

19. strcmp (string1, string2);
string1 srting2
string1
string1 string2
string1 string2
char name1[20] = “Jack”;
char name2[10] = “Rose”;
…
x = strcmp (name1, name2);

20. 4.
strcpy (string1, string2);
srting2
string1 string1
string1 string2
char name1[20] = “Jack ”;
char name2[10] = “Rose Apple”;
…
strcpy (name1, name2);
namel= “Rose Apple” name2 =

22. 5
8
9
18
21