题解 | #班级成绩输入输出#

#include <stdio.h>
int main() {
    double arr[5][5];
    int i, j;
    for (i = 0; i < 5; i++) {
        scanf("%lf %lf %lf %lf %lf", &arr[i][0], &arr[i][1], &arr[i][2], &arr[i][3],
              &arr[i][4]);
    }
    for (i = 0; i < 5; i++) {
        double sum = 0.0;
        for (j = 0; j < 5; j++) {
            printf("%.1lf ", arr[i][j]);
            sum += arr[i][j];
        }
        printf("%.1lf", sum);
        printf("\n");
    }
    return 0;
}