Algoritmos sujei

1. ejercicio 01
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package porpuesto009;
import java.io.*;
import java.util.Scanner;
/**
*
* @author gaviota
*/
public class Porpuesto009 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws IOException {
Scanner ap = new Scanner (System.in);
double a, b ,c;
System.out.println("Área y perímetro de un Rectagulo");
System.out.println("Ingrese el valor de a");
a= ap.nextInt();
System.out.println("ingrese el valor de b");
b= ap.nextInt();
double area= a*b;
double perimetro=2*a+2*b;
System.out.println("El Área de un rectángulo es = " + area);
System.out.println("El Perímetro de un rectángulo es = " + perimetro);
}
}
ejercicio 02
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package problema.nº2;
import java.io.*;
/**
*
* @author sujei
*/
public class ProblemaNº2 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws IOException {
int n1,n2,s;

2. BufferedReader in =new BufferedReader(new
InputStreamReader(System.in));
System.out.println("numero 1:");
n1 = Integer.parseInt(in.readLine());
System.out.println("numero 2:");
n2 = Integer.parseInt(in.readLine());
s=n1+n2;
System.out.println("");
System.out.println("suma: " +s);
}
}
ejercicio 03
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package problema3;
import java.io.*;
/**
*
* @author sujei
*/
public class Problema3 {
/**
* @param args the command line arguments
*/
public static void main(String[] args)throws IOException {
//varible
int n1,n2,c,r;
BufferedReader in =new BufferedReader(new
InputStreamReader(System.in));
System.out.println("numero 1:");
n1 = Integer.parseInt(in.readLine());
System.out.println("numero 2:");
n2 = Integer.parseInt(in.readLine());
//proceso
c=n1/n2;
r=n1%n2;
//salida
System.out.println("");
System.out.println("cociente: " +c);
System.out.println("residuo: " +r);
// TODO code application logic here
}}

3. ejercio 04
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package problema.pkg4;
import java.io.*;
/**
*
* @author sujei
*/
public class Problema4 {
/**
* @param args the command line arguments
*/
public static void main(String[] args)throws IOException {
//variable
float vv,igv,pv;
//entrada
BufferedReader in =new BufferedReader(new
InputStreamReader(System.in));
System.out.println("valor de venta:");
vv =Float.parseFloat(in.readLine());
//proceso
igv = vv *0.18f;
pv = vv+ igv;
//salida
System.out.println("");
System.out.println("igv: " +igv);
System.out.println("precio de venta: " +pv);
// TODO code application logic here
}
}
Ejercicio 5
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package problema004;
import java.io.*;
/**
*
* @author sujei
*/

4. public class Problema004 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws IOException {
short a,n;
int p;
BufferedReader in =new BufferedReader(new
InputStreamReader(System.in));
System.out.println("a: ");
a=Short.parseShort(in.readLine());
System.out.println("n: ");
n=Short.parseShort(in.readLine());
// TODO code application logic here
p=(int)Math.pow((double)a, (double)n);
System.out.println("");
System.out.println("Potencia: "+p);
}
}
Ejercio 4
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package problema04;
/**
*
* @author sujei
*/
public class Problema04 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
}
}

5. Ejercicio5
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package problema05;
import java.io.*;
/**
*
* @author sujei
*/
public class PROBLEMA05 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws IOException {
short n,r;
int a;
BufferedReader in =new BufferedReader(new
InputStreamReader(System.in));
System.out.println("a: ");
a=Integer.parseInt(in.readLine());
System.out.println("n: ");
n=Short.parseShort(in.readLine());
// TODO code application logic here
r=(short)Math.pow((double)a, (1/(double)n));
System.out.println("");
System.out.println("Radicación: "+r);
// TODO code application logic here
}
}
Ejercio 6
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package problema06;
import java.io.*;
/**
*
* @author sujei
*/
public class PROBLEMA06 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws IOException {
// TODO code application logic here
int n, ni, r;
BufferedReader in =new BufferedReader(new
InputStreamReader(System.in));

6. System.out.println("Número: ");
n=Integer.parseInt(in.readLine());
r=n%10;
n=n/10;
ni=r*10;
r=n%10;
n=n/10;
ni=(ni+r)*10;
r=n%10;
n=n/10;
ni=(ni+r)*10;
r=n%10;
n=n/10;
ni=(ni+r)*10;
ni=ni+n;
System.out.println("");
System.out.println("Inverso: " + ni);
}
}
Ejercicio7
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package problema07;
import java.io.*;
/**
*
* @author sujei
*/
public class PROBLEMA07 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws IOException {
// TODO code application logic here
int n,s;
BufferedReader in =new BufferedReader(new
InputStreamReader(System.in));
System.out.println("Número: ");
n=Integer.parseInt(in.readLine());
s=(n*(n+1))/2;
System.out.println("");
System.out.println("Suma: " + s);
}

7. }ejercicio 8
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package problema8;
import java.io.*;
/**
*
* @author sujei
*/
public class Problema8 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws IOException {
float c, r, t, i, m;
BufferedReader in =new BufferedReader(new
InputStreamReader(System.in));
System.out.println("Capital: ");
c=Float.parseFloat(in.readLine());
System.out.println("Tasa de interes: ");
r=Float.parseFloat(in.readLine());
System.out.println("Tiempo: ");
t=Float.parseFloat(in.readLine());
m=(float)(Math.pow((double)(1+r/100),(double)t))*c;
i=m-c;
System.out.println("");
System.out.println("Interes: " + i);
System.out.println("Monto: " + m);
}
}
Ejercicio10
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package problema10;
import java.io.*;
/**
*
* @author sujei
*/
public class Problema10 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws IOException {

8. final int HORA=3600;
final int MINUTO=60;
int t,h,m,s;
BufferedReader in =new BufferedReader(new InputStreamReader(System.in));
System.out.println("Tiempo en segundos: ");
t=Integer.parseInt(in.readLine());
h=t/HORA;
//t=t%HORA;
m=t/MINUTO;
s=t;
System.out.println("");
System.out.println("Horas: "+h);
System.out.println("Minutos: "+m);
System.out.println("Segundos: "+s);
// TODO code application logic here
}
}
Ejercicio11
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package problema11;
import java.io.*;
/**
*
* @author sujei
*/
public class Problema11 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws IOException {
int a,b,n1,n2;
BufferedReader in =new BufferedReader(new
InputStreamReader(System.in));
System.out.println("Número1: ");
a=Integer.parseInt(in.readLine());
System.out.println("Número2: ");
b=Integer.parseInt(in.readLine());
n1=a+b;
n2=a-b;
System.out.println("");
System.out.println("Suma: " + n1);
System.out.println("Resta: " + n2);
// TODO code application logic here
}

9. }
Ejercicio 12
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package problema12;
import java.io.*;
/**
*
* @author sujei
*/
public class Problema12 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws IOException {
int a,b;
BufferedReader in =new BufferedReader(new
InputStreamReader(System.in));
a=Integer.parseInt(in.readLine());
b=Integer.parseInt(in.readLine());
String x = Integer.toString(a);
String y = Integer.toString(b);
System.out.println("el 1er número ingresado tiene: " + x.length() +
" dígitos");
System.out.println("el 2do número ingresado tiene: " + y.length() +
" dígitos");
// TODO co de application logic here
}
}
ejecicio
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package problema012;
import java.io.*;
/**
*
* @author sujei
*/
public class Problema012 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws IOException{
int n;
String r = "";
BufferedReader in=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Número: ");
n=(int)Integer.parseInt(in.readLine());
if (n>0)

10. ejercicio13
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package problema013;
import java.util.Scanner;
/**
*
* @author sujei
*/
public class Problema013 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
char c;
//String r="";
System.out.println("Caracter");
Scanner teclado=new Scanner(System.in);
c=teclado.next().charAt(0);
if(c=='a'||c=='e'||c=='i'||c=='o'||c=='u'||c=='A'||c=='E'||c=='I'||c=='O'
||c=='U'){
//r="es vocal";}
System.out.println("ES VOCAL");
} else{
//r="no es vocal"; }
System.out.println("NO ES VOCAL");
}//System.out.println("la letra ingresada "+r);
}
}
{
r="POSITIVO";
}
if (n<0)
{
r="NEGATIVO";
}
if(n==0)
{
r="NEUTRO";
}
System.out.println("");
System.out.println("Resultado: "+r);
}
}

11. ejercicio
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package problema13;
import java.io.*;
/**
*
* @author sujei
*/
public class Problema13 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws IOException {
final int METRO=1000;
final int DECIMETRO=100;
final int CENTIMETRO=10;
int mm,m,d,c;
BufferedReader in =new BufferedReader(new InputStreamReader(System.in));
System.out.println("Cantidad de milímetros: ");
mm=Integer.parseInt(in.readLine());
m=mm/METRO;
d=mm/DECIMETRO;
c=mm/CENTIMETRO;
System.out.println("");
System.out.println("Metros: "+m);
System.out.println("Decímetros: "+d);
System.out.println("Centímetros: "+c);
System.out.println("Milímetros: "+mm);
// TODO code application logic here
}
}
Ejercicio 14
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package problema14;
import java.io.*;
/**
*
* @author gaviota
*/
public class PROBLEMA14 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws IOException {

12. double a, b, c, d, e;
BufferedReader in =new BufferedReader(new InputStreamReader(System.in));
System.out.println("Ingresa un número, será el valor de a ");
a=Integer.parseInt(in.readLine());
System.out.println("Ingresa un número, será el valor de b ");
b=Integer.parseInt(in.readLine());
System.out.println("Ingresa un número, será el valor de c ");
c=Integer.parseInt(in.readLine());
d=(4*(a*a*a*a)+(3*b*a)+(b*b))/(a*a-b*b);
e=((3*(c*c))+a+b)/4;
System.out.println("");
System.out.println("El resultado de la fórmula siguiente
c=(4*a^4+3*b*a+b^2)/a^2-b^2, es: "+d);
System.out.println("El resultado de la fórmula siguiente
d=(3*c^2+a+b)/4, es: "+e);
// TODO code application logic here
}
}
Ejercicio15
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package problema015;
import java.io.*;
/**
*
* @author sujei
*/
public class PROBLEMA015 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws IOException{
// TODO code application logic here
int n;
String r;
BufferedReader in=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Número: ");
n=Integer.parseInt(in.readLine());
if(n%2==0)
{
r= "PAR";
}
else
{
r= "IMPAR";
}
System.out.println("");

13. System.out.println("Resultado: " + r);
System.out.println();
}
}
ejercicio
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package problema15;
import java.io.*;
/**
*
* @author sujei
*/
public class Problema15 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws IOException {
int a=1, b=2, c=3, d=4;
int s=a+b+c+d;
double porcentaje_a=(double)(a*100)/s;
double porcentaje_b=(double)(b*100)/s;
double porcentaje_c=(double)(c*100)/s;
double porcentaje_d=(double)(d*100)/s;
System.out.println("");
System.out.println("La variable "a" representa el: "+porcentaje_a+"%
de "+s);
System.out.println("La variable "b" representa el: "+porcentaje_b+"%
de "+s);
System.out.println("La variable "c" representa el: "+porcentaje_c+"%
de "+s);
System.out.println("La variable "d" representa el: "+porcentaje_d+"%
de "+s);
// TODO code application logic here
}
}

14. Ejercicio 16
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package problema016;
import java.io.*;
/**
*
* @author sujei
*/
public class PROBLEMA016 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws IOException{
int n1,n2,n3,m;
BufferedReader in=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Número 1: ");
n1= Integer.parseInt(in.readLine());
System.out.println("Número 2: ");
n2=Integer.parseInt(in.readLine());
System.out.println("Número 3: ");
n3= Integer.parseInt(in.readLine());
if (n1>n2)
{
if(n1>n3)
{
m=n1;
}
else
{
m=n3;
}
}
else
{
if(n2>n3)
{
m=n2;
}
else
{
m=n3;
}
}
System.out.println("");
System.out.println("Mayor: " +m);
}
}

15. Ejercicio17
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package problema017;
import java.io.*;
/**
*
* @author sujei
*/
public class PROBLEMA017 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws IOException{
int n,r;
BufferedReader in=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Número: ");
n = Integer.parseInt(in.readLine());
if (!(n%2==0))
{
r=n*2;
}
else
{
r=n*3;
}
System.out.println("");
System.out.println("Resultado: " + r);
System.out.println();
}
}
Ejercicio18
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package problema18;
import java.io.*;
/**
*
* @author sujei
*/
public class Problema18 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws IOException {
double f,k,c;
BufferedReader in =new BufferedReader(new InputStreamReader(System.in));
System.out.println("Grados Fahrenheit: ");

16. f=Integer.parseInt(in.readLine());
c = (f-32)/1.8;
k = (f-32)*5/9+273.15;
System.out.println("");
System.out.println("A grados Celsius: "+c);
System.out.println("A grados Kelvin: "+k);
}
}
dReader(new InputStreamReader(System.in));
System.out.println("Grados Sexagesimales: ");
s=Integer.parseInt(in.readLine());
c=s*200/180;
System.out.println("");
System.out.println("A grados Centesimales: "+c);
}
}
Ejercicio 19
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package problema019;
import java.io.*;
/**
*
* @author sujei
*/
public class Problema019 {
/**
* @param args the command line arguments
*/
public static void main(String[] args)throws IOException{
final float D1=0.1F;
final float D2=0.2F;
final float IGV=0.18F;
float c,m_d, m_igv, p;
BufferedReader in=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Consumo: ");
c=(float)Integer.parseInt(in.readLine());
if(c<=100)
{
m_d=c * D1;
}
else
{

17. m_d=c * D2;
}
m_igv=(c-m_d) * IGV;
p= c - m_d + m_igv;
System.out.println("");
System.out.println("Monto descuento: " + m_d);
System.out.println("Impuesto IGV: " + m_igv);
System.out.println("Importe a pagar: " + p);
System.out.println();
}
}
Ejercicio20
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package problema20;
import java.io.*;
/**
*
* @author sujei
*/
public class Problema20 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws IOException {
double s,c;
BufferedReader in =new BufferedReader(new InputStreamReader(System.in));
System.out.println("Grados Sexagesimales: ");
s=Integer.parseInt(in.readLine());
c=s*200/180;
System.out.println("");
System.out.println("A grados Centesimales: "+c);
}
}
EJERCICIO21
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package problema21;
import java.io.*;
/**
*
* @author CARLITA

18. */
public class Problema21 {
/**
* @param args the command line arguments
*/
public static void main(String[] args)throws IOException {
double s;
BufferedReader in =new BufferedReader(new
InputStreamReader(System.in));
System.out.println("incendiohohoohho");
EJERCICIO22
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package problema022;
import java.util.Scanner;
/**
*
* @author SUJEI
*/
public class Problema022 {
/**
* @param args the command line arguments
*/
public static void main(String[] args){
Scanner in =new Scanner(System.in);
final float DESC_G = 0.15F;
final float DESC_A = 0.2F;
final float REC_G = 0.1F;
final float REC_A = 0.05F;
//variables
float mc, m, tp;
//char tc,fp;
String r ;
String tc;
String fp;
System.out.println("Monto de compra: ");
mc=in.nextFloat();
System.out.println("Tipo de cliente: ");
tc =in.next();
System.out.println("Forma de pago: ");
fp=in.next();
if(tc=="G")
{
if(fp=="C")
{
m = mc * DESC_G;
tp = mc - m;

19. r = "DESCUENTO 15%";
}
else
{
m = mc * REC_G;
tp = mc + m;
r = "RECARGO 10%";
}
}
else
{
if (fp=="C")
{
m = mc * DESC_A;
tp = mc - m;
ejercicio23
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package problema023;
import java.io.*;
/**
*
* @author sujei
*/
public class PROBLEMA023 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws IOException{
float a,b,x;
BufferedReader in=new BufferedReader(new InputStreamReader(System.in));
System.out.println("a: ");
a=Float.parseFloat(in.readLine());
System.out.println("b: ");
b=Float.parseFloat(in.readLine());
if(a!=0)
{
x=-b/a;
}
else
{
x=0;
}
System.out.println("");
System.out.println("x: " + x);
System.out.println();
}
}

20. Ejercicio24
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package problema024;
import java.io.*;
/**
*
* @author sujei
*/
public class Problema024 {
/**
* @param args the command line arguments
*/
public static void main(String[] args)throws IOException {
double a,b,c,d,x1,x2;
BufferedReader in=new BufferedReader(new InputStreamReader(System.in));
System.out.println("a: ");
a=(double) Integer.parseInt(in.readLine());
System.out.println("b: ");
b=(double)Integer.parseInt(in.readLine());
System.out.println("c: ");
c=(double) Integer.parseInt(in.readLine());
d = Math.pow(b,2)-4*c;
if(a!=0 && d>=0)
{
x1 = (-b+Math.pow(d,(1.0/2)))/2*a;
x2 = (-b-Math.pow(d,(1.0/2)))/2*a;
}
else
{
x1 = 0;
x2 = 0;
}
System.out.println("");
System.out.println("x1: " + x1);
System.out.println("x2: " + x2);
System.out.println();
}
}
Ejercicio25
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package problema0025;
import java.io.*;
/**
*
* @author sujei
*/

21. public class Problema0025 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws IOException {
int h,m,s;
BufferedReader in=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Hora: ");
h= Integer.parseInt(in.readLine());
System.out.println("Minuto: ");
m=Integer.parseInt(in.readLine());
System.out.println("Segundo: ");
s= Integer.parseInt(in.readLine());
s+=1;
if (s==60)
{
s=0;
m+=1;
if(m==60)
{
m=0;
h+=1;
if(h==24)
{
h=0;
}
}
}
System.out.println("");
System.out.println("Hora: " + h);
System.out.println("Minuto: " + m);
System.out.println("Segundo: " + s);
System.out.println();
}
}