用逻辑表达式来表示闰年的条件：能被四整除 但不嫩被100整除能被4整除又能被400整除

#include void main(){int year,leap;scanf("%d",&year);!((year%4==0&&year%100!=0)||(year%400==0))?(leap=0):(leap=1);if(leap)printf("runnian\n");else printf("feirunnian\n");}