Submission #861865

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
861865	2023-10-17 05:52:54	iskhakkutbilim	parentrises (BOI18_parentrises)	C++17	22 / 100	1064 ms	262144 KiB

parentrises

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#include <bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
#define all(a) a.begin(), a.end()
const int mod = 1e9 + 7;
int P;
int readable(string &s){
  int n = s.size();
  map<pair<int, int>, bool> dp[n];
  if(s[0] == ')' or s[n-1] == '('){
    return 0;
  }
  dp[0][{0, 1}] = 1, dp[0][{1, 0}] = 1;
  dp[0][{1, 1}] = 1;
  for(int i = 1;i < n; i++){
    for(auto [pp, y] : dp[i-1]){
      int x1 = pp.ff, x2 = pp.ss;
      int ok = 0;
      int c = s[i]==')' ? -1 : 1;
      if(x2 + c >= 0){
        ok++;
        dp[i][{x1, x2 + c}] = 1;
      }
      if(x1 + c >= 0){
        ok++;
 
 
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Compilation message (stderr)

parentrises.cpp:109:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  109 | main(){
      | ^~~~

• Subtask 1: 5 / 5
• Subtask 2: 11 / 11
• Subtask 3: 0 / 6
• Subtask 4: 0 / 28
• Subtask 5: 6 / 6
• Subtask 6: 0 / 16
• Subtask 7: 0 / 28