C语言实现五门课程成绩录入、平均计算和排序输出

#include <stdio.h>

int main() {
    float scores[5];
    float sum = 0, average;
    int i, j;

    // 录入成绩
    for (i = 0; i < 5; i++) {
        printf("请输入第%d门课的成绩:", i+1);
        scanf("%f", &scores[i]);
        sum += scores[i]; // 累加成绩
    }

    // 计算平均成绩
    average = sum / 5;

    // 冒泡排序
    for (i = 0; i < 4; i++) {
        for (j = 0; j < 4-i; j++) {
            if (scores[j] > scores[j+1]) {
                float temp = scores[j];
                scores[j] = scores[j+1];
                scores[j+1] = temp;
            }
        }
    }

    // 输出平均成绩和排序后的成绩
    printf("平均成绩为%.2f\n", average);
    printf("排序后的成绩为:");
    for (i = 0; i < 5; i++) {
        printf("%.2f ", scores[i]);
    }
    printf("\n");

    return 0;
}