#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#define mMax 10
#define nMax 10
int i, j;
int m = 10; int n = 10;
void Input(int A[mMax][nMax],int m, int n)
{
    FILE *fileInput;
    errno_t err = fopen_s(&fileInput, "Output1.txt", "w");
    if (err)
    {
        printf_s("File not open");
        system("pause");
        return;
    }
    else
    {
        printf_s("\n Enter m and n: ");
        scanf_s("%d%d", &m, &n);
        for (i = 0; i < m; i++)
        {
            for (j = 0; j < n; j++)
            {
                fscanf_s(fileInput, "%d", &A[m][n]);
            }
        }
    }
    fclose(fileInput);
}
int fact(int f)
{
    int s;
    for (s = 1; f>0; f--)
    {
        s = s*f;
    }
    return s;
}
int C(int i, int j)
{
    if (j>i)
    {
        int per = j;
        j = i;
        i = per;
    }
    return fact(i) / (fact(j)*fact(i - j));
}
void Output(int A[mMax][nMax])
{
    FILE *fileOutput;
    errno_t err = fopen_s(&fileOutput, "Output1.txt", "w+");
    if (err)
    {
        printf_s("File not open");
        system("pause");
        return;
    }
    for (i = 0; i < m; i++)
    {
        for (j = 0; j < n; j++)
        {
            fprintf(fileOutput, "%d", A[m][n]);
            printf_s("%d", A[m][n]);
        }
        fprintf(fileOutput, "\n");
        puts(" ");
    }
    fclose(fileOutput);
}
int main()
{
    int A[mMax][nMax];
    for (i = 0; i<m; i++)
    {
        A[i][i] = C(i + 1, i + 1);
        j = i + 1;
        while (j<n)
        {
            if (i >= j)
            {
                A[i][j] = A[j][i] = C(j + 1, i + 1);
            }
            else
            {
                A[j][i] = A[i][j] = C(j + 1, i + 1);
            }
            j++;
        }
    }
    for (i = 0; i<m; i++)
    {
        for (j = 0; j<n; j++)
        {
            printf("%d\t", A[i][j]);
        }
        printf("\n");
    }
    _getch();
}