题解 | #牛牛的计划#

#include <stdio.h>

int main() {
    int y = 0, m = 0, d = 0; //输入
    int y1 = 0, m1 = 0, d1 = 0;  //真正的开学时间
    scanf("%d %d %d", &y, &m, &d);
    scanf("%d %d %d", &y1, &m1, &d1);
    int num1=y* 1000 + m*100+d;
     int num2=y1* 1000 + m1*100+d1;
     if ( num1>num2)
     printf("no");
     else
     printf("yes");
    
    return 0;
}