C program for Leap year

This program find that where entered year is leap year or not. Leap year means year in which 29 February is present.
Leap year also identify by using some mathematical algorithms, If any year is divisible by 4 and gives remainder 0 than that year is leap year. ex 400, 800, 1200, 1600, 2000, 2004, 2008 etc.

Program:

#include<stdio.h>

int main()

{

int i;

char a;

do

{

printf("\nEnter year=");

scanf("%d",&i);

if(i%4==0)

{

printf("\n%d is leap year",i);

}

else{

printf("\n%d is not leap year",i);

}

printf("\nDo u want to Continue(y/n)=");

scanf("\n%c",&a);

}while(a=='y'||a=='Y');

printf("\nThank you...\n");

return 0;

}

Output:

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