关于 J 组第 28 题

#include <iostream>//1
#include <cmath>//2
using namespace std;//3
//4
int customFunction(int a, int b) {//5
//	if(b % 10000000 == 0) cout << b;//6
	if(b == 0) {//7
		return a;//8
	}//9
	return a + customFunction(a, b - 1);//10
}//11
int main() {//12
	int x = 1, y = -1;//13
	cin >> x >> y;//14
	int result = customFunction(x, y);//15
	cout << pow(result, 2) << endl;//16
	return 0;//17
}//18