[doc file]

#include<stdio.h>
#include<stdlib.h>
#define MAX 100
#define dl "test.txt"
void GhiFileSoNguyen(int n)
{
    FILE *f;
    f = fopen(dl,"wt");
    if(f==NULL)
    {
        printf("Khong tao duoc file\n");
        //getch();
        exit(0);
    }
    for (int i = 0; i < n; ++i)
    {
            fprintf(f, "%d ", rand()%50);
    }
    fprintf(f, "\n" );
    fclose(f);
}
void LuuFile(int a[MAX][MAX], int m, int n)
{
    FILE *f;
    f = fopen(dl,"wt");
    if(f==NULL)
    {
        printf("Khong tao duoc file\n");
        //getch();
        exit(0);
    }
    fprintf(f, "%d %d\n", m,n);
    for (int i = 0; i < m; ++i)
    {
        for (int j = 0; j < n; ++j)
        {
            fprintf(f, "%d\t", rand()%50);
        }
        fprintf(f, "\n" );
    }
    fclose(f);
}
void DocFile(int a[MAX][MAX], int m, int n)
{
    FILE *f;
    f = fopen(dl,"rt");
    if(f==NULL)
    {
        printf("Khong doc duoc file\n");
        //getch();
        exit(0);
    }
    fscanf(f, "%d %d\n", &m,&n);
    for (int i = 0; i < m; ++i)
    {
        for (int j = 0; j < n; ++j)
        {
            fscanf(f, "%d", &a[i][j]);
        }
    }
    fclose(f);
}
int main(int argc, char const *argv[])
{
    int a[MAX][MAX], m=5,n=6,i,j;
    int b[MAX][MAX], x,y;
    for (int i = 0; i < m; ++i)
    {
        for (int j = 0; j < n; ++j)
        {
            a[i][j] =rand() % 50;
        }
    }
    GhiFileSoNguyen(10000);
    /*LuuFile(a,m,n);
    DocFile(b,x,y);
    for (int i = 0; i < m; ++i)
    {
        for (int j = 0; j < n; ++j)
        {
            printf("%d\t", b[i][j]);
        }
        printf("\n");
    }*/
    return 0;
}