今年的第几天

https://www.nowcoder.com/practice/ae7e58fe24b14d1386e13e7d70eaf04d?tpId=40&tqId=21350&tPage=1&rp=1&ru=/ta/kaoyan&qru=/ta/kaoyan/question-ranking

#include<stdio.h>
int pd(int n){
	if(n%400==0 || (n%4==0 && n%100!=0))
		return 1;
	return 0;
}
int main(){
	int year,month,day;
	int m[14]={0,31,28,31,30,31,30,31,31,30,31,30,31};//135781012
	while(scanf("%d %d %d",&year,&month,&day)!=EOF){
		if(pd(year))
			m[2]=29;
		int out=0;
		for(int i=1;i<month;i++){
			out+=m[i];
		}
		out+=day;
		printf("%d\n",out);
	}
	return 0;
}