#include <stdio.h> #include <stdlib.h> #define ROW 6 #define COL 6 int main() { int score[ROW][COL]; int cards[6]; int i, j, k, num, dir, total_score; // input score table for (i = 0; i < ROW; i++) { for (j = 0; j < COL; j++) { scanf("%d", &score[i][j]); } } // input cards for (i = 0; i < 6; i++) { scanf("%d", &cards[i]); } // input and process each customer for (k = 0; k < 3; k++) { total_score = 0; scanf("%d %d", &num, &dir); // calculate score if (cards[num-1] == 0) { printf("Invalid card number!\n"); continue; } if (dir == 1) { for (i = 0; i < COL; i++) { total_score += score[num-1][i]; } } else if (dir == 2) { for (i = 0; i < ROW; i++) { total_score += score[i][num-1]; } } else { printf("Invalid direction!\n"); continue; } printf("%d\n", total_score); } return 0; } 改进上述代码

上述代码已经可以正常运行，但是可以进行一些改进：

1. 可以增加注释，让代码更易读懂。

2. 可以在输入时对输入数据进行合法性检查，比如积分表中的数字应该在1~100之间，卡牌数字应该在0~6之间，等等。

3. 可以将代码拆分成多个函数，让主函数更加简洁明了。

4. 可以增加错误处理机制，比如输入数据格式错误时给出提示，让程序更加健壮。

下面是改进后的代码示例：

#include <stdio.h>
#include <stdlib.h>

#define ROW 6
#define COL 6

// 检查输入的数字是否合法，若不合法则返回0，否则返回1
int isValidNumber(int num, int min, int max)
{
    if (num < min || num > max)
    {
        return 0;
    }
    return 1;
}

// 读取积分表
void readScoreTable(int score[ROW][COL])
{
    int i, j;
    printf("Please input the score table:\n");
    for (i = 0; i < ROW; i++)
    {
        for (j = 0; j < COL; j++)
        {
            scanf("%d", &score[i][j]);
            if (!isValidNumber(score[i][j], 1, 100))
            {
                printf("Invalid input: score should be between 1 and 100!\n");
                exit(1);
            }
        }
    }
}

// 读取卡牌
void readCards(int cards[6])
{
    int i;
    printf("Please input the cards:\n");
    for (i = 0; i < 6; i++)
    {
        scanf("%d", &cards[i]);
        if (!isValidNumber(cards[i], 0, 6))
        {
            printf("Invalid input: card number should be between 0 and 6!\n");
            exit(1);
        }
    }
}

// 计算得分
int calculateScore(int score[ROW][COL], int cards[6], int num, int dir)
{
    int i, total_score = 0;
    if (cards[num-1] == 0)
    {
        printf("Invalid input: card number %d is hidden!\n", num);
        return 0;
    }
    if (dir == 1)
    {
        for (i = 0; i < COL; i++)
        {
            total_score += score[num-1][i];
        }
    }
    else if (dir == 2)
    {
        for (i = 0; i < ROW; i++)
        {
            total_score += score[i][num-1];
        }
    }
    else
    {
        printf("Invalid input: direction should be 1 or 2!\n");
        return 0;
    }
    return total_score;
}

// 处理每个顾客的输入和输出
void processCustomer(int score[ROW][COL], int cards[6])
{
    int i, num, dir, total_score;
    for (i = 0; i < 3; i++)
    {
        printf("Please input the card number and direction for customer %d:\n", i+1);
        scanf("%d %d", &num, &dir);
        total_score = calculateScore(score, cards, num, dir);
        printf("Customer %d's score is %d\n", i+1, total_score);
    }
}

int main()
{
    int score[ROW][COL];
    int cards[6];

    readScoreTable(score);
    readCards(cards);
    processCustomer(score, cards);

    return 0;
}