/*
 * simple example of for loop and array
 */
#include <stdio.h>

#define N 10

void print_array(int sz, int a[]);

int main(void) {
	int nums[N];

	for (int i = 0; i < N; ++i) {
		nums[i] = i+1;
	}
	print_array(N, nums);
	int index;
	printf("enter index\n");
	if (scanf("%d", &index) != 1) {
		printf("error\n");
		return 1;
	}
	nums[index] = -1;
	printf("%d\n", nums[index]);
	print_array(N, nums);

	return 0;
}

void print_array(int sz, int a[]) {
	for (int i = 0; i < sz; ++i) {
		printf("[%d] %d\n", i, a[i]);
	}
}