WAP to accept ‘n’ numbers as input and find the largest number of them using while loop

#include<stdio.h>
#include<conio.h>
void main()
{
 int a[5],s=0;
 int i;
 clrscr();
 for(i=0;i<5;i++)
 {scanf("%d",&a[i]);
 }
 i=0;
 while(i<5)
 {
  if(a[i]>s)
   s=a[i];
  i++;
 }
 printf("%d",s);
 getch();
}

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WAP to suppress not reachable code warning using #pragma directive
#include<stdio.h>
#include<conio.h>
#pragma warn -rvl
#pragma warn -par
#pragma warn -rch
int f1()
{
int a;
}
void f2(int x)
{
printf("asd");
}
int f3()
{
 int a=1;
 return a;
 a++;
}
int main()
{
 f1();
 f2(2);
 f3();
 getch();
}

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WAP to swap 2 numbers using swap as macro

#include<conio.h>
#include<stdio.h>
#define swap(x,y) { x=x+y; y=x-y; x=x-y;}
void main()
{
  int a=3,b=4;
  swap(a,b);
  printf("%d,%d",a,b);
  getch();
}

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WAP to demonstrate the scope rule of automatic variables

#include<conio.h>
#include<stdio.h>
int a=1;
void main()
{
auto int a;
clrscr();
printf("\nvalue of a: ");
scanf("%d",&a);
printf("\na: %d",a);
{
    a=0;
    printf("\na: %d",a);
    a++;
}
    printf("\na: %d",a);
getch();
}

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WAP to take the percentage marks of a student as input and find which division the student falls into using logical operators

#include<stdio.h>
#include<conio.h>
void main()
{
  clrscr();
  float p;
  printf("Enter the Percentage ");
  scanf("%f",&p);
  if(p>=90 && p<=100)
  printf("Division = A");
  else if(p<90 && p>=75)
  printf("Division = B");
  else if(p<75 && p>=55)
  printf("Division = C");
  else if (p<55 && p>=35)
  printf("Division = D");
  else if(p<35 && p>=0)
  printf("Division = E");
  else
  printf("Wrong input");
  getch();
}

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WAP to find the simple interest by taking P, n and r as inputs

#include<stdio.h>
#include<conio.h>
void main()
{
  clrscr();
  float p,n,r;
  printf("Enter the Principle");
  scanf("%f",&p);
  printf("Enter the Rate");
  scanf("%f",&r);
  printf("Enter the Time");
  scanf("%f",&n);
  float SI=((p*r*n)/100);
  printf("Simple Interest is %f ",SI);
  getch();
}

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WAP to find the area of rectangle by taking length and breadth as inputs

          #include<stdio.h>
#include<conio.h>

void main()
{   clrscr();
    float l,b,r;
    printf("Area of Rectangle\n");
    printf("Enter the length");
    scanf("%f",&l);
    printf("Enter the Breath");
    scanf("%f",&b);
    r=l*b;
    printf("Area of the Rectangle is %f",r,"square meter");
    getch();
}

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