#include <stdio.h> int main() { int year,month,day;//规定计划 int Cyear,Cmonth,Cday;//实行计划时 scanf("%d %d %d",&year,&month,&day); scanf("%d %d %d",&Cyear,&Cmonth,&Cday);//这样总不能错了吧 if(year <= Cyear && month <=Cmonth && day <=Cday) printf("yes"); else if(year <= Cyear && month <= Cmonth) printf("yes"); else if(year < Cyear) printf("yes"); else printf("no"); return 0; }