#include <cstdio> #include <algorithm> using namespace std; int main(){ //判断y1,m1,d1是不是在ymd后面 int y,m,d; int y1,m1,d1; scanf("%d %d %d",&y,&m,&d); scanf("%d %d %d",&y1,&m1,&d1); int sum = y*10000+m*100+d; int sum1 = y1*10000+m1*100+d1; if(sum <= sum1){ printf("yes\n"); }...