Submission #82798

#	Time	Username	Problem	Language	Result	Execution time	Memory
82798		xiaowuc1	Pot (COCI15_pot)	C++14	50 / 50	2 ms	588 KiB

pot

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

ll powpow(ll b, ll e) {
	ll r = 1;
	while(e) {
		if(e%2) {
			r *= b;
		}
		b *= b;
		e /= 2;
	}
	return r;
}

int main() {
	int n;
	cin >> n;
	ll ret = 0;
	while(n--) {
		string s;
		cin >> s;
		int x = 0;
		for(int i = 0; i < s.size()-1; i++) {
			x *= 10;
			x += s[i] - '0';
		}
		int y = s[s.size()-1] - '0';
		ret += powpow(x, y);
	}
	printf("%lld\n", ret);
}

Compilation message (stderr)

pot.cpp: In function 'int main()':
pot.cpp:27:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i = 0; i < s.size()-1; i++) {
                  ~~^~~~~~~~~~~~

• Subtask 1: 50 / 50