제출 #681405

#제출 시각아이디문제언어결과실행 시간메모리
681405vjudge1Match (CEOI16_match)C++14
10 / 100
252 ms3784 KiB
#include <bits/stdc++.h> using namespace std; #define F first #define S second #define pb push_back #define all(a) a.begin(), a.end() typedef long long ll; typedef pair<int, int> ii; const int N = 2000 + 5; const int mod = 1e9 + 7; vector<int> pos['z' + 1]; map<ii, int> f; string s; string t; int n; int dp(int l, int r) { if(l > r) return 1; if((r - l + 1) & 1) return 0; if(f.count({l, r})) return f[{l, r}]; int &res = f[{l, r}]; res = 0; if(s[l] == s[r]) { res |= dp(l + 1, r - 1); if(res) { t[l] = '(', t[r] = ')'; return res; } } int tmp = lower_bound(all(pos[s[l]]), r) - pos[s[l]].begin() - 1; while(tmp >= 0 && pos[s[l]][tmp] > l) { int i = pos[s[l]][tmp]; res |= (dp(l + 1, i - 1) && dp(i + 1, r)); if(res) { t[l] = '(', t[i] = ')'; break; } tmp--; } return res; } void solve() { cin >> s; int n = s.size(); t.resize(n); for(int i = 0; i < n; i++) pos[s[i]].pb(i); if(dp(0, n - 1)) cout << t; else cout << -1; } signed main() { cin.tie(0)->sync_with_stdio(0); int t = 1; // cin >> t; while(t--) solve(); return 0; }

컴파일 시 표준 에러 (stderr) 메시지

match.cpp: In function 'int dp(int, int)':
match.cpp:37:39: warning: array subscript has type 'char' [-Wchar-subscripts]
   37 |     int tmp = lower_bound(all(pos[s[l]]), r) - pos[s[l]].begin() - 1;
      |                                       ^
match.cpp:7:16: note: in definition of macro 'all'
    7 | #define all(a) a.begin(), a.end()
      |                ^
match.cpp:37:39: warning: array subscript has type 'char' [-Wchar-subscripts]
   37 |     int tmp = lower_bound(all(pos[s[l]]), r) - pos[s[l]].begin() - 1;
      |                                       ^
match.cpp:7:27: note: in definition of macro 'all'
    7 | #define all(a) a.begin(), a.end()
      |                           ^
match.cpp:37:56: warning: array subscript has type 'char' [-Wchar-subscripts]
   37 |     int tmp = lower_bound(all(pos[s[l]]), r) - pos[s[l]].begin() - 1;
      |                                                        ^
match.cpp:38:31: warning: array subscript has type 'char' [-Wchar-subscripts]
   38 |     while(tmp >= 0 && pos[s[l]][tmp] > l)
      |                               ^
match.cpp:40:25: warning: array subscript has type 'char' [-Wchar-subscripts]
   40 |         int i = pos[s[l]][tmp];
      |                         ^
match.cpp: In function 'void solve()':
match.cpp:58:17: warning: array subscript has type 'char' [-Wchar-subscripts]
   58 |         pos[s[i]].pb(i);
      |                 ^

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