# 李錄不客氣

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#define SIZE 10 + 1

// function to print the dimensional array
void printArray(int twoDimsional[SIZE][SIZE], int n)
{
    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < n; j++)
        {
            printf("%d ", twoDimsional[i][j]);
        }
        printf("\n");
    }
}

// function to print the menu
void printMenu()
{
    printf("\nPlease choose which action you want to perform: (Enter [1/2/3])\n");
    printf("1: Min Pooling\n");
    printf("2: Multiples of X\n");
    printf("3: Exit()\n");
}

// function to do the min pooling
void minPooling(int twoDimsional[SIZE][SIZE], int n)
{
    int smallest = 100;
    for (int i = 0; i < n; i++)
    {
        smallest = 101;
        for (int j = 0; j < n; j++)
        {
            if (twoDimsional[i][j] < smallest)
                smallest = twoDimsional[i][j];
        }
        printf("%d ", smallest);
    }
}

// function to find the multiple of x
void multiplesOfX(int twoDimsional[SIZE][SIZE], int n, int x)
{
    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < n; j++)
        {
            if (twoDimsional[i][j] % x == 0)
                printf("matrix[%d][%d]: %d\n", i, j, twoDimsional[i][j]);
        }
    }
}

int main()
{
    srand(time(NULL));

    // declare the variables
    int size, mode, x, mat[SIZE][SIZE] = {0};

    // get the size of the matrix
    printf("Input the X of the matrix (2~10): ");
    scanf("%d", &size);

    while (size < 2 || size > 10)
    {
        printf("Wrong matrix size, please select again: ");
        scanf("%d", &size);
    }

    // initilize the matrix
    for (int i = 0; i < size; i++)
    {
        for (int j = 0; j < size; j++)
        {
            mat[i][j] = rand() % 99 + 1;
        }
    }

    // print the matrix
    printf("\nThe initial %d*%d matirx: \n", size, size);
    printArray(mat, size);

    printMenu();
    scanf("%d", &mode);
    while (mode < 1 || mode > 3)
    {
        printf("The input number is not within the range. Try again: ");
        scanf("%d", &mode);
    }

    while (mode != 3)
    {

        if (mode == 1)
        {
            // do the min pooling in mode 1
            minPooling(mat, size);

            // return to the menu
            printMenu();
            scanf("%d", &mode);
            while (mode < 1 || mode > 3)
            {
                printf("The input number is not within the range. Try again: ");
                scanf("%d", &mode);
            }
        }
        else if (mode == 2)
        {
            printf("Please enter the x: ");
            scanf("%d", &x);

            while (x < 1)
            {
                printf("The input number should be positive. Try again: ");
                scanf("%d", &x);
            }

            // find the multiple of x in mode 2
            multiplesOfX(mat, size, x);

            // return to the menu
            printMenu();
            scanf("%d", &mode);
            while (mode < 1 || mode > 3)
            {
                printf("The input number is not within the range. Try again: ");
                scanf("%d", &mode);
            }
        }
    }

    // exit the program in mode 3
    printf("End Program");
}