ABC145A - Circle
問題:A - Circle
#include <iostream> using namespace std; int main(void) { int r; cin.tie(0); ios::sync_with_stdio(false); cin >> r; cout << r * r << "\n"; return 0; }
問題:A - Circle
#include <iostream> using namespace std; int main(void) { int r; cin.tie(0); ios::sync_with_stdio(false); cin >> r; cout << r * r << "\n"; return 0; }