洛谷p1838三子棋C语言

三子棋是一种非常经典的棋类游戏，玩家和电脑轮流下棋，先将三个棋子连成一条线的一方获胜。下面是洛谷p1838三子棋C语言的代码实现：

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#define ROW 3
#define COL 3

void Initboard(char arr[ROW][COL], int row, int col) {
    int i, j;
    for (i = 0; i < row; i++)
        for (j = 0; j < col; j++)
            arr[i][j] = ' ';
}

void Displayboard(char arr[ROW][COL], int row, int col) {
    int i, j;
    for (i = 0; i < row; i++) {
        for (j = 0; j < col; j++) {
            printf(" %c ", arr[i][j]);
            if (j < col - 1)
                printf("|");
        }
        printf("\n");
        if (i < row - 1) {
            for (j = 0; j < col; j++) {
                printf("---");
                if (j < col - 1)
                    printf("|");
            }
            printf("\n");
        }
    }
}

void Player_p(char arr[ROW][COL], int row, int col) {
    printf("玩家下：>\n");
    int i, j;
    scanf("%d%d", &i, &j);
    while (i > row || i < 1 || j > col || j < 1) {
        printf("坐标非法，请重输：\n");
        scanf("%d%d", &i, &j);
    }
    while (arr[j - 1][i - 1] == '#' || arr[j - 1][i - 1] == '*') {
        printf("坐标已被占用，请重新输入：\n");
        scanf("%d%d", &i, &j);
    }
    arr[j - 1][i - 1] = '*';
}

void Computer_p(char arr[ROW][COL], int row, int col) {
    printf("电脑下：>\n");
    int i, j;
    srand((unsigned int)time(NULL));
    while (1) {
        i = rand() % row;
        j = rand() % col;
        if (arr[i][j] == ' ') {
            arr[i][j] = '#';
            break;
        }
    }
}

char Checkwin(char arr[ROW][COL], int row, int col) {
    int i;
    for (i = 0; i < row; i++) {
        if (arr[i][0] == arr[i][1] && arr[i][1] == arr[i][2] && arr[i][0] != ' ')
            return arr[i][0];
    }
    for (i = 0; i < col; i++) {
        if (arr[0][i] == arr[1][i] && arr[1][i] == arr[2][i] && arr[0][i] != ' ')
            return arr[0][i];
    }
    if (arr[0][0] == arr[1][1] && arr[1][1] == arr[2][2] && arr[0][0] != ' ')
        return arr[0][0];
    if (arr[0][2] == arr[1][1] && arr[1][1] == arr[2][0] && arr[0][2] != ' ')
        return arr[0][2];
    if (i == row && i == col)
        return 'q';
    return ' ';
}

int main() {
    char board[ROW][COL];
    char ret;
    Initboard(board, ROW, COL);
    Displayboard(board, ROW, COL);
    while (1) {
        Player_p(board, ROW, COL);
        Displayboard(board, ROW, COL);
        ret = Checkwin(board, ROW, COL);
        if (ret != ' ') {
            break;
        }
        Computer_p(board, ROW, COL);
        Displayboard(board, ROW, COL);
        ret = Checkwin(board, ROW, COL);
        if (ret != ' ') {
            break;
        }
    }
    if (ret == '*') {
        printf("玩家获胜！\n");
    }
    else if (ret == '#') {
        printf("电脑获胜！\n");
    }
    else {
        printf("平局！\n");
    }
    return 0;
}