matrix.c

#include <stdio.h>
#include <stdlib.h>
#define MAX 200
#define LESS -1

// This function creates the matrix
int** create(int n) {
    int i, j ;
    int **matrix ;

    matrix = (int **) malloc(n * sizeof(int *)) ;

    for(i = 0; i < n; i++)
        matrix[i] = (int *) malloc(n * sizeof(int));

    for(i = 0; i < n; i++) {
        for(j = 0; j < n; j++)
            matrix[i][j] = 0 ;
    }

    return matrix ;
}

// This function prints the matrix
void print(int **matrix, int n) {
    int i, j ;

    for(i = 0; i < n ; i++) {
        for(j = 0; j < n; j++)
            printf("%d ", matrix[i][j]);

        printf("\n");
    }
}

int finish(int **matrix, int n) {
    int i, j ;
    int row, col ;

    // check rows
    for(i = 0; i < n; i++) {
        row = 0;

        for(j = 0; j < n; j++) {
            if(row == matrix[i][j]) {
                if(!row) {
                    row = LESS ;
                    break ;
                }
            } else if(j) {
                    row = LESS ;
                    break ;
            }

            row = matrix[i][j] ;
        }

        if(row == LESS)
            return 0 ;
    }

    // check cols


    return 1 ;
}

int main() {

    int i, j, k, n ;
    int choose = 0 ;

    printf("Welcome new user\n\nHELP SYSTEM: The computer is 2, you is 1 and the pattern is 0.\n\n");
    printf("1 - Start the game\n2-Exit\n");

    back:

    printf("Please, insert your option: ");
    scanf("%d", &choose);

    switch(choose) {
        case 1: {
            printf("Please, insert the order of matrix: ");
            scanf("%d", &n);
            break ;
        }

        case 2: {
            printf("Oh :( Bye bye");
            break ;
        }

        default: {
            goto back ;
        }
    }

    int **matrix = create(n), cond = 0;
    print(matrix, n);


    while(!cond) {
        int row, col ;

        printf("Insert the row and col: ");
        scanf("%d %d", &row, &col);
        matrix[row-1][col-1] = 1 ;
        printf("\n");
        print(matrix, n);

        if(finish(matrix, n))
            cond = 1 ;
    }


    return 0 ;
}