#include <stdio.h>

#include <string.h>

char *copy_n( char dst[], char src[], int n ){

int n_len_comp = n - strlen(src);

int i;

if( n_len_comp <= 0 ){

for( i = 0; i < n; i++ )

dst[i] = src[i];

}

else{

for( i = 0; i < strlen(src); i++ )

dst[i] = src[i];

for( i = strlen(src); i < n; i++ )

dst[i] = '\0';

}

return dst;

}

int main(void){

char src[1000], dst[1001];

int n;

printf("Please enter a string: ");

fgets(src, 1000, stdin);

printf("How many characters would you like to copy: ");

scanf("%d", &n);

printf("The result of copy_n() for %s is: %s\n", src, copy_n(dst, src, n));

return 0;

}