View Code of Problem 81

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
int main(){
	int year,m,d,i,j,sum=0;
	int a[13]={31,28,31,30,31,30,31,31,30,31,30,31};
	scanf("%d%d%d",&year,&m,&d);
	for(i=0;i<m-1;i++){
		sum=sum+a[i];
	}
	if(year%400==0||(year%4==0&&year%100!=0)){
		sum+=1;
	}
	printf("%d\n",sum+d);
	return 0;
}