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

void dodaj(int **mac1, int **mac2, int x, int y)
{
    int i,j,**macw = (int*) malloc (sizeof(int)*x);
    for (i=0;i<x;i++)
    {
        macw[i]=(int*) malloc (sizeof(int)*y);
    }
    for (i=0;i<x;i++)
    {
        for (j=0;j<y;j++)
        {
            macw[i][j]=mac1[i][j]+mac2[i][j];
        }
    }
    for (i=0;i<x;i++)
    {
        for (j=0;j<y;j++)
        {
            printf("%d   ",macw[i][j]);
        }
    printf("\n");
    }
    for (i=0;i<x;i++)
    {free(*macw[i]);}
}

void odejm(int **mac1, int **mac2, int x, int y)
{
    int i,j,**macw = (int*) malloc (sizeof(int)*x);
    for (i=0;i<x;i++)
    {
        macw[i]=(int*) malloc (sizeof(int)*y);
    }
    for (i=0;i<x;i++)
    {
        for (j=0;j<y;j++)
        {
            macw[i][j]=mac1[i][j]-mac2[i][j];
        }
    }
    for (i=0;i<x;i++)
    {
        for (j=0;j<y;j++)
        {
            printf("%d   ",macw[i][j]);
        }
    printf("\n");
    }
    for (i=0;i<x;i++)
    {free(*macw[i]);}
}

void mnoz(int **mac1, int **mac2, int x, int y, int x2, int y2)
{
    int i,j,k,**macw = (int*) malloc (sizeof(int)*x);
    for (i=0;i<x;i++)
    {
        macw[i]=(int*) malloc (sizeof(int)*y2);
    }
    for (i=0;i<x;i++)
    {
        for (j=0;j<y2;j++)
        {
            macw[i][j]=0;
            for (k=0;k<y;k++)
            {
                macw[i][j]=macw[i][j]+(mac1[i][k]*mac2[k][j]);
            }
        }
    }
    for (i=0;i<x;i++)
    {
        for (j=0;j<y2;j++)
        {
            printf("%d   ",macw[i][j]);
        }
    printf("\n");
    }
    //for (i=0;i<x;i++)
    //{free(*macw[i]);}
}

void transp(int **mac1, int x, int y)
{
    int i,j,**macw = (int*) malloc (sizeof(int)*y);
    printf("przed:\n");
    for (i=0;i<x;i++)
    {
        for (j=0;j<y;j++)
        {
            printf("%d   ",mac1[i][j]);
        }
    printf("\n");
    }

    for (i=0;i<y;i++)
    {
        macw[i]=(int*) malloc (sizeof(int)*x);
    }
    for (i=0;i<y;i++)
    {
        for (j=0;j<x;j++)
        {
            macw[i][j]=mac1[j][i];
        }
    }
    **mac1=**macw;
    printf("\npo:\n");
    for (i=0;i<y;i++)
    {
        for (j=0;j<x;j++)
        {
            printf("%d   ",macw[i][j]);
        }
    printf("\n");
    }
    /*for (i=0;i<x;i++)
    {free(*macw[i]);}*/
}

int main()
{
    int x,x2,y,y2,i,j,d;
    printf("Podaj rozmiary maciezy #1. \nX = ");
    scanf("%d",&x);
    printf("Y = ");
    scanf("%d",&y);
    int **mac1 = (int*) malloc (sizeof(int)*x);
    for (i=0;i<x;i++)
    {
        mac1[i]=(int*) malloc (sizeof(int)*y);
    }
    for (i=0;i<x;i++)
    {
        for (j=0;j<y;j++)
        {
            printf("podaj wartosc %dx%d : ",i+1,j+1);
            scanf("%d",&
            mac1[i][j]);
        }
    }
    printf("Podaj rozmiary maciezy #2. \nX = ");
    scanf("%d",&x2);
    printf("Y = ");
    scanf("%d",&y2);
    int **mac2 = (int*) malloc (sizeof(int)*x2);
    for (i=0;i<x2;i++)
    {
        mac2[i]=(int*) malloc (sizeof(int)*y2);
    }
    for (i=0;i<x2;i++)
    {
        for (j=0;j<y2;j++)
        {
            printf("podaj wartosc %dx%d : ",i+1,j+1);
            scanf("%d",&mac2[i][j]);
        }
    }
    if ((x==x2) && (y==y2)) {printf("1-dodaj je\n2-odejmij macierze #1-#2\n");}
    if (y==x2) {printf("3-pomnoz macierz #1 * #2\n");}
    printf("4-Transponuj macierz nr 1\n");
    printf("decyzja: ");
    scanf("%d",&d);
    switch(d)
    {
    case 1:
         dodaj(mac1,mac2,x,y);
         break;
    case 2:
         odejm(mac1,mac2,x,y);
         break;
    case 3:
         mnoz(mac1,mac2,x,y,x2,y2);
         break;
    case 4:
         transp(mac1,x,y);
         break;
    default:break;}
    for (i=0;i<x;i++)
    {free(*mac1[i]);}
    for (i=0;i<x2;i++)
    {free(*mac2[i]);}
    system("pause");
}