# include<stdio.h>
int main ()
{int BJT,UCT;
int a=0,b=0;
scanf("%d",&BJT);
if(BJT>2359||BJT<0){
printf("请输入正确的数字");
}
else if(BJT<800){
a=BJT/100-8+24;
b=BJT%100+a*100;
}
else {
a=BJT/100-8;
b=BJT%100+a*100;
}
printf ("%d",b);
}
原文：http://www.cnblogs.com/love625/p/7113160.html