#include <stdio.h>void main(){int year,leap; printf ("Enter year:"); scanf("%d",&year); if (year%400 == 0) leap =1; /*是闰年leap 置成1*/ else   { if (year%4 ==0 && year%100!=0)  leap=1;     else  leap=0;   /*不是闰年leap 置成0*/   }     if (leap==1)  printf ("%d: is a leap year.",year);     else  printf ("%d is not a leap year", year);     getch();   }

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