Submission #68502

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
68502	2018-08-17 08:29:44	aome	parentrises (BOI18_parentrises)	C++17	100 / 100	214 ms	116708 KiB

parentrises

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#include <bits/stdc++.h>
using namespace std;
namespace Task1 {
  char color[1000005];
  void solve() {
    int q; cin >> q;
    while (q--) {
      string s; cin >> s;
      stack<int> st;
      stack<int> st2;
      stack<int> st3;
      bool fail = 0;
      for (int i = 0; i < s.size(); ++i) {
        if (s[i] == '(') st.push(i), color[i] = 'G';
        else {
          if (st.size()) {
            st2.push(i), color[i] = 'G', st3.push(st.top()), st.pop();
          }
          else {
            if (!st2.size()) { fail = 1; break; }
            color[i] = 'R', color[st2.top()] = 'B', st2.pop(), st3.pop();
          }
        }
      }
      while (st.size() && st3.size()) {
        color[st.top()] = 'R', color[st3.top()] = 'B';
        st.pop(), st3.pop();
 
 
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Compilation message (stderr)

parentrises.cpp: In function 'void Task1::solve()':
parentrises.cpp:16:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for (int i = 0; i < s.size(); ++i) {
                    ~~^~~~~~~~~~
parentrises.cpp:34:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for (int i = 0; i < s.size(); ++i) {
                    ~~^~~~~~~~~~
parentrises.cpp:53:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < s.size(); ++i) cout << color[i]; cout << '\n';
                     ~~^~~~~~~~~~
parentrises.cpp:53:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
     for (int i = 0; i < s.size(); ++i) cout << color[i]; cout << '\n';
     ^~~
parentrises.cpp:53:58: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
     for (int i = 0; i < s.size(); ++i) cout << color[i]; cout << '\n';
                                                          ^~~~

• Subtask 1: 5 / 5
• Subtask 2: 11 / 11
• Subtask 3: 6 / 6
• Subtask 4: 28 / 28
• Subtask 5: 6 / 6
• Subtask 6: 16 / 16
• Subtask 7: 28 / 28