약수 구하기

#include <iostream> int g_val; int g_order; int g_answer; void pre_setting(void) { std::ios_base::sync_with_stdio(false); std::cin.tie(NULL); std::cout.tie(NULL); } void input_action(void) { std::cin >> g_val >> g_order; } void solution(void) { int cnt = 0; for (int i = 1; i <= g_val; ++i) { if (!(g_val % i)) { ++cnt; if (g_order == cnt) { g_answer = i; return ; } } } } void output_action(void) { std::cout << g_answer; } int main(void) { pre_setting(); input_action(); solution(); output_action(); return (0); }