5-5b.cpp

来自「清华大学谭浩强C程序设计（第3版）程序源代码」· C++ 代码 · 共 15 行

#include <stdio.h>
void main()
     {
      int year, leap;
      scanf("%d",&year);
      if((year%4==0 && year%100!=0) || (year%400==0)) leap=1;
else leap=0;

      if (leap)
	printf("%d is ",year);
      else
	printf("%d is not ",year);
      printf("a leap year.\n");
}