投机技巧加一:float类型自动四舍五入,而且数据范围不大,float完全够

tips:该代码在C语言同样适用,因为我没using namespace std

#include <stdio.h>

int main() {
    float a, b, c;
    int num;
    scanf("%d;%f,%f,%f", &num, &a, &b, &c);
    printf("The each subject score of No. %d is %.2f, %.2f, %.2f.", num, a, b,c);
    return 0;
}