输入日期判断某年第几天

输入日期判断某年第几天

#include<stdio.h>

int main(){

int y;

int m;

int d;

int a;

int b;

int c;

printf("请输入2000-2500之间的日期（年、月、日）:\n");

scanf("%d%d%d",&y,&m,&d);

printf("%d年%d月%d日\n",y,m,d);

a=y%4;

b=y%400;

c=y%100;

if(y>=2000&&y<=2500){

if(b==0){

printf("%d年是闰年,%d年%d月%d日是%d年的第%d天\n",y,y,m,d,y);

}else if(a==0&&b!=0&&c!=0){

printf("%d年是闰年,%d年%d月%d日是%d年的第%d天\n",y,y,m,d,y);

}else if(a==0&&b!=0&&c==0){

printf("%d年是平年,%d年%d月%d日是%d年的第%d天\n",y,y,m,d,y);

}else{

printf("%d年是平年,%d年%d月%d日是%d年的第%d天\n",y,y,m,d,y);

}

}else{

printf("您输入的日期不符合要求！");

}

return 0;

}