제출 #604421

#제출 시각아이디문제언어결과실행 시간메모리
604421maximath_1괄호 문자열 (CEOI16_match)C++11
0 / 100
0 ms212 KiB
#include <bits/stdc++.h> using namespace std; int main(){ cin.tie(0) -> sync_with_stdio(0); string s; cin >> s; stack<char> cb; int n = s.size(); for(int i = 0; i < n; i ++){ if(cb.empty()) cb.push(s[i]); else if(cb.top() != s[i]) cb.push(s[i]); else cb.pop(); } if(cb.size()){ cout << -1 << endl; return 0; } vector<int> gg[30]; for(int i = 0; i < n; i ++) gg[s[i] - 'a'].push_back(i); string ans = ""; for(int i = 0; i < n; i ++) ans += '('; for(int i = 0; i < 30; i ++) if(gg[i].size()){ if(gg[i].size() & 1){ cout << -1 << endl; return 0; } for(int j = gg[i].size() / 2; j < gg[i].size(); j ++) ans[gg[i][j]] = ')'; } cout << ans << endl; }

컴파일 시 표준 에러 (stderr) 메시지

match.cpp: In function 'int main()':
match.cpp:32:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |   for(int j = gg[i].size() / 2; j < gg[i].size(); j ++)
      |                                 ~~^~~~~~~~~~~~~~
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