ArrayToFile

#include "stdafx.h"

int _tmain(int argc, _TCHAR* argv[])
{
    int N,i;
    FILE *f;
#ifdef _DEBUG
    N=20;
#else
    scanf_s("%d", &N);
#endif
    int *mas = (int *) malloc(sizeof(int)*N);
    for (i=0; i<N; i++) mas[i]=2*i+1;
    fopen_s(&f,"massiv.txt","wt");
    if (f==NULL) {
        printf("Error in file!");
        return -1;
    }
    for (i=0; i<N; i++)
        fprintf(f,"%d\n",mas[i]);
    fclose(f);
    printf("It's OK!\n");
}