1#include <stdio.h>
23
int func(int num);
4void print_int(int num);
56
int main() {
7int i;
89
for (i = 0; i < 10; i++) {
10print_int(func(i));
11}
1213
return 0;
14}
1516
int func(int num) {
17return num * num;
18}
1920
void print_int(int num) {
21printf("%d", num);
22}
23