#include<stdio.h>
#include<conio.h>
void NhapMangTuFile(char TenFile[], int &n, int a[])
{
FILE* f;
f = fopen(TenFile, "r");
if(f == NULL)
{
printf("\nKhong doc duoc file");
fclose(f);
return;
}
fscanf(f, "%d", &n);
for(int i = 0; i < n; i++)
{
fscanf(f, "%d", &a[i]);
}
fclose(f);
}
void XuatMang(int n, int a[])
{
for(int i = 0; i < n; i++)
{
printf("%4d", a[i]);
}
printf("\n");
}
void XuatMangRaFile(char TenFile[], int n, int a[])
{
FILE* f; f = fopen(TenFile, "w");
if(f == NULL)
{
printf("\nKhong tao duoc file\n");
fclose(f);
return;
}
for(int i = 0; i < n; i++)
{
fprintf(f, "%4d", a[i]);
}
fclose(f);
}
int main()
{
int n;
int a[100];
NhapMangTuFile("input.txt", n, a);
printf("\nMang da nhap");
XuatMangRaFile("output.txt", n, a);
getch();
return 0;
}