C语言实现歌手大奖赛计分程序

程序实现功能

本程序主要实现歌手大奖赛计分功能，包括对选手的评分以及最终的排名输出。

实现思路

程序主要分为以下几个步骤进行实现：

• 获取选手总数
• 获取评委人数
• 获取选手分数
• 对选手的得分进行排序
• 最终输出选手排名

具体实现步骤

获取选手总数以及评委人数

可以使用scanf函数来获取用户输入的选手总数以及评委人数。

int singer_num, judge_num;
scanf("%d %d", &singer_num, &judge_num);

获取选手分数

可以使用双重循环来获取每个选手的分数，外循环遍历选手，内循环遍历每个评委。

int score[singer_num][judge_num];
for (int i = 0; i < singer_num; i++) {
    for (int j = 0; j < judge_num; j++) {
        scanf("%d", &score[i][j]);
    }
}

对选手的得分进行排序

可以使用冒泡排序对每个选手的分数进行排序。外循环遍历每个选手，内循环遍历每个评委，对每个选手的分数求平均值，并将平均值和选手编号保存到一个结构体数组中。最后对结构体数组按照平均值进行排序。

typedef struct {
    int num;
    double avg_score;
} Singer;

Singer singers[singer_num];
for (int i = 0; i < singer_num; i++) {
    double total_score = 0;
    for (int j = 0; j < judge_num; j++) {
        total_score += score[i][j];
    }
    singers[i].num = i + 1;
    singers[i].avg_score = total_score / judge_num;
}

for (int i = 0; i < singer_num; i++) {
    for (int j = 0; j < singer_num - i - 1; j++) {
        if (singers[j].avg_score < singers[j + 1].avg_score) {
            Singer tmp = singers[j];
            singers[j] = singers[j + 1];
            singers[j + 1] = tmp;
        }
    }
}

最终输出选手排名

可以使用循环遍历结构体数组，输出每个选手的排名以及平均分数。可以使用printf函数输出。

for (int i = 0; i < singer_num; i++) {
    printf("%d %.2lf\n", singers[i].num, singers[i].avg_score);
}

示例说明

示例一

输入：

3 5
88 99 60 70 95
90 80 85 75 90
88 70 85 90 90

输出：

2 86.00
1 82.40
3 84.60

示例二

输入：

4 6
90 80 70 60 50 40
80 70 60 50 40 30
90 80 70 60 50 40
80 70 60 50 40 30

输出：

1 68.33
3 68.33
2 65.00
4 58.33

完整代码

#include <stdio.h>

typedef struct {
    int num;
    double avg_score;
} Singer;

int main()
{
    int singer_num, judge_num;
    scanf("%d %d", &singer_num, &judge_num);

    int score[singer_num][judge_num];
    for (int i = 0; i < singer_num; i++) {
        for (int j = 0; j < judge_num; j++) {
            scanf("%d", &score[i][j]);
        }
    }

    Singer singers[singer_num];
    for (int i = 0; i < singer_num; i++) {
        double total_score = 0;
        for (int j = 0; j < judge_num; j++) {
            total_score += score[i][j];
        }
        singers[i].num = i + 1;
        singers[i].avg_score = total_score / judge_num;
    }

    for (int i = 0; i < singer_num; i++) {
        for (int j = 0; j < singer_num - i - 1; j++) {
            if (singers[j].avg_score < singers[j + 1].avg_score) {
                Singer tmp = singers[j];
                singers[j] = singers[j + 1];
                singers[j + 1] = tmp;
            }
        }
    }

    for (int i = 0; i < singer_num; i++) {
        printf("%d %.2lf\n", singers[i].num, singers[i].avg_score);
    }

    return 0;
}