#include <stdio.h> int main() { int year, month; while (scanf("%d %d", &year, &month) != EOF) { // 注意 while 处理多个 case // 64 位输出请用 printf("%lld") to int day[] ={0,31,28,31,30,31,30,31,31,30,31,30,31}; if(year % 400 ==0 || (year % 4 ==0...