Đề 16

#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
#define inp "input16.txt"
#define out "output16.txt"
void doc(int a[100][100], int m, int n)
{
    FILE*f;
    f=fopen(inp, "rt");
    if (f==NULL)
    {
        printf("Khong doc duoc file: ");
        getch();
    }
    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < m; j++)
        {
            fscanf(f, "%d", &a[i][j]);
            fprintf(f, "\n");
        }
    }
     for (int i = 0; i < m; i++)
    {
        for (int j = 0; j < n; j++)
        {
            printf("%d ", a[i][j]);
        }
        printf("\n");
    }
    fclose(f);
}
void SapXep(int a[100][100], int m, int n)
{
    FILE *f;
    f = fopen(out, "wt");
    int b[100 * 100];
    for (int i = 0; i < n; i++)
        for (int j = 0; j < n; j++)
            b[n*i + j] = a[i][j];
    for (int i = 0; i < n*n; i++)
        for (int j = i + 1; j < n*n;j++)
            if (b[i] < b[j])
            {
                int tmp = b[i];
                b[i] = b[j];
                b[j] = tmp;
            }
    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < n; j++)
        {
            printf("%d ", b[n*i + j]);
            fprintf(f, "%d ", b[n*i + j]);
        }
        printf("\n");
        fprintf(f, "\n");
    }

    fclose(f);
}
void main()
{
    int a[100][100];
    int n,m;
    printf("Nhap dong va cot: ");
    scanf("%d%d",&m,&n);
    doc(a,m,n);
    printf("Ma tran da sap xep:\n");
    SapXep(a,m,n);
    getch();
}