题解 | 学生基本信息输入输出

#include <iostream>
using namespace std;

float compared(float n)
{
    float temp=int(n*100);
    n*=100;
    if(temp+0.5<=n)
    return (temp+1)/100;
    else
     return temp/100;
}//2位数四舍五入

int main()
{
    long a;
    float b,c,d;
    scanf("%ld;%f,%f,%f",&a,&b,&c,&d);
     printf("The each subject score of No. %ld is %.2f, %.2f, %.2f.",a,compared(b),compared(c),compared(d));
return 0;
}// 64 位输出请用 printf("%lld")