제출 #588998

#제출 시각아이디문제언어결과실행 시간메모리
588998andrei_boaca괄호 문자열 (CEOI16_match)C++14
37 / 100
2071 ms596 KiB
#include <bits/stdc++.h> #pragma GCC optimize("O3") using namespace std; typedef pair<int,int> pii; int n; string s,sol; stack<char> st; bitset<100005> can[100005]; int f[31]; int main() { ios_base::sync_with_stdio(false); cin.tie(0); cin>>s; n=s.size(); s=" "+s; if(n%2==1) { cout<<-1; return 0; } for(int i=1;i<=n;i++) { if(!st.empty()&&st.top()==s[i]) st.pop(); else st.push(s[i]); } if(!st.empty()) { cout<<-1; return 0; } sol.resize(n+1); for(int i=1;i<=n;i++) if(sol[i]!=')') { sol[i]='('; while(!st.empty()) st.pop(); int poz=0; if(s[i+1]==s[i]) poz=i+1; for(int j=i+1;j<=n;j++) { if(sol[j]==')') break; if(!st.empty()&&st.top()==s[j]) st.pop(); else st.push(s[j]); if(st.empty()&&s[j+1]==s[i]&&sol[j+1]!=')') poz=j+1; } sol[poz]=')'; } for(int i=1;i<=n;i++) cout<<sol[i]; return 0; }
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