Submission #63546

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
63546	2018-08-02 06:20:18	Bruteforceman	parentrises (BOI18_parentrises)	C++11	72 / 100	59 ms	5824 KiB

parentrises

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#include "bits/stdc++.h"
using namespace std;
// vector <char> v[1000010];
string solve(string s) {
  int n = s.size();
  stack <int> p;
  stack <int> q;
  string ans;
  for(int i = 0; i < n; i++) ans += '#';
  for(int i = 0; i < n; i++) {
    if(s[i] == ')') {
      if(p.empty()) {
        if(q.empty()) return "impossible";
        else {
          ans[q.top()] = 'G';
          ans[i] = 'B';
          q.pop();
        }
      } else {
        ans[p.top()] = 'R';
        ans[i] = 'R';
        p.pop();
      }
    } else {
      p.push(i);
      q.push(i);
    }
  }
  stack <int> thic;
 
 
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• Subtask 7: 0 / 28