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While loop in C programming

Program:

#include<stdio.h>
#include<conio.h>
int main()
{
int a[5],i;
printf("Enter five number\n");
for(i=0;i<=4;i++)
{
  scanf("%d",&a[i]);
}
printf("Printing five number");
i=0;
while(i<=4)
{
     printf("\n%d",a[i]);
     i++;
}
getch();
}




output:




Note: In the above Program, we have seen that we have to enter five element using for loop and scanf function. while we have printed that values using while loop.


Program 2:


#include<stdio.h>
#include<conio.h>
int main()
{
    int f1=0,f2=1,f3,i=1,n;
    printf("Enter the no");
    scanf("%d",&n);
    printf("%d%d",f1,f2);
    while(i<=n)
    {
        f3=f1+f2;
        i++;
        printf("%d",f3);
        f1=f2;
        f2=f3;
    }
    getch();
}

 Output:














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