题解 | #牛牛的计划#

#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>

int main() {
	int y;
	int m;
	int d; 
	int y1;
	int m1;
	int d1;
	scanf("%d %d %d", &y, &m, &d);
	scanf("%d %d %d", &y1, &m1, &d1);
	if (y1 != y) {
		y1 > y ? printf("yes") : printf("no");
	}
	else {
		if (m1 != m) {
			m1 > m ? printf("yes") : printf("no");
		}
		else{
			d1 >= d ? printf("yes") : printf("no");
		}
	}

	return 0;
}

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