Submission #1497970

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;

#define FOR(i,l,r) for(int i = int(l);i < int(r);i++)
template<typename T> bool chmax(T& a,const T& b){ return a < b ? (a = b,true) : false; }
template<typename T> bool chmin(T& a,const T& b){ return b < a ? (a = b,true) : false; }
typedef long long ll;

int N;
string S;

int main()
{
	cin >> S;
	N = S.size();

	int cnt = 0;
	FOR(i,1,N){
		cnt += S [i] != S [i - 1];
	}
	if(S.front() == 'o' && S.back() == 'o') cnt++;

	if(cnt % 2){
		puts("o");
	}
	else{
		puts("x");
	}

	return 0;
}

Submission Info

Judge Result