题解 | #班级成绩输入输出#

#include <stdio.h>
#define N 5
int main() {
    double a;
    for (int i = 0; i < N; i++) {
        double sum = 0;
        for (int j = 0; j < N; j++) {
            scanf("%lf", &a);
            printf("%.1lf ", a);
            sum += a;
        }
        printf("%.1lf\n", sum);
    }
    return 0;
}