제출 #328539

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
328539		sumit_kk10	JOIOJI (JOI14_joioji)	C++14	100 / 100	44 ms	6136 KiB

joioji

#include <bits/stdc++.h>
#define fast ios_base::sync_with_stdio(0);cin.tie(NULL);cout.tie(NULL)
#define ll long long int
#define ld long double
using namespace std;
const int N = 1e6 + 5;
const int MOD = 1e9 + 7;

void solve(){
	int n, j = 0, ii = 0, ans = 0, o = 0;
	cin >> n;
	string s;
	cin >> s;
	map<pair<int, int>, int> mp;
	mp[{0, 0}] = 0;
	for(int i = 0; i < s.size(); ++i){
		if(s[i] == 'J') ++j;
		if(s[i] == 'O') ++o;
		if(s[i] == 'I') ++ii;
		if(mp.find({j - o, j - ii}) == mp.end())
			mp[{j - o, j - ii}] = i + 1;
		else
			ans = max(ans, i + 1 - mp[{j - o, j - ii}]);
	}
	cout << ans << '\n';
}

int main(){
	fast;
	int t = 1;
	// cin >> t;
	while(t--)
		solve();
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

joioji.cpp: In function 'void solve()':
joioji.cpp:16:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |  for(int i = 0; i < s.size(); ++i){
      |                 ~~^~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 15 / 15
• Subtask 3: 80 / 80