oj.uz

Submission #263238

# Submission time Handle Problem Language Result Execution time Memory
263238 2020-08-13T14:25:28 Z kimbj0709 Match (CEOI16_match) C++14
37 / 100
 2000 ms 23164 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define maxn 100050
int lastpos[maxn][26];
string input;
vector<int> out(maxn,0);
int right(int r,char c){
  if(lastpos[r][c-'a']!=-1){
    //return lastpos[r][c-'a'];
  }
  int ret = -1;
  if(r-2>=0&&input.at(r)==input.at(r-1)){
    if(input.at(r-2)==c){
      ret = r-2;
    }
    else{
      ret = right(r-2,c);
    }
  }
  else{
    int pos = right(r-1,input.at(r))-1;;
    if(input.at(pos)==c){
      ret = pos;
    }
    else{
      ret = right(pos,c);
    }
  }
  lastpos[r][c-'a'] = ret;
  return ret;
}
void recursive(int l,int r){
  if(l>=r){
    return;
  }
  if(input.at(l)==input.at(r)){
    out[r] = 1;
    recursive(l+1,r-1);
    return;
  }
  int pos = right(r,input.at(l));
  out[pos] = 1;
  recursive(l+1,pos-1);
  recursive(pos+1,r);
}
int32_t main() {
  ios::sync_with_stdio(0);
  cin.tie(0);cout.tie(0);
  cin >> input;
  stack<int> stack1;
  stack1.push(0);
  for(int i=1;i<input.length();i++){
    if(stack1.size()!=0&&input.at(stack1.top())==input.at(i)){
      stack1.pop();
    }
    else{
      stack1.push(i);
    }
  }
  if(stack1.size()!=0){
    cout << -1;
    return 0;
  }
  for(int i=0;i<26;i++){
    for(int j=0;j<input.length();j++){
      lastpos[j][i] = -1;
    }
  }
  recursive(0,input.length()-1);
  for(int i=0;i<input.length();i++){
    if(out[i]==1){
      cout << ')';
    }
    else{
      cout << '(';
    }
  }
 
}

Compilation message

match.cpp: In function 'int32_t main()':
match.cpp:53:16: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |   for(int i=1;i<input.length();i++){
      |               ~^~~~~~~~~~~~~~~
match.cpp:66:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   66 |     for(int j=0;j<input.length();j++){
      |                 ~^~~~~~~~~~~~~~~
match.cpp:71:16: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   71 |   for(int i=0;i<input.length();i++){
      |               ~^~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1152 KB Output is correct
2 Correct 1 ms 1152 KB Output is correct
3 Correct 1 ms 1152 KB Output is correct

Subtask #2
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1152 KB Output is correct
2 Correct 1 ms 1152 KB Output is correct
3 Correct 1 ms 1152 KB Output is correct
4 Correct 1 ms 1312 KB Output is correct
5 Correct 1 ms 1280 KB Output is correct
6 Correct 1 ms 1408 KB Output is correct
7 Correct 2 ms 1536 KB Output is correct

Subtask #3
0 / 63.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1152 KB Output is correct
2 Correct 1 ms 1152 KB Output is correct
3 Correct 1 ms 1152 KB Output is correct
4 Correct 1 ms 1312 KB Output is correct
5 Correct 1 ms 1280 KB Output is correct
6 Correct 1 ms 1408 KB Output is correct
7 Correct 2 ms 1536 KB Output is correct
8 Correct 3 ms 2432 KB Output is correct
9 Correct 14 ms 2688 KB Output is correct
10 Correct 7 ms 2688 KB Output is correct
11 Correct 5 ms 2688 KB Output is correct
12 Correct 142 ms 14336 KB Output is correct
13 Correct 74 ms 15488 KB Output is correct
14 Correct 899 ms 16888 KB Output is correct
15 Correct 25 ms 17784 KB Output is correct
16 Correct 24 ms 17784 KB Output is correct
17 Correct 108 ms 19576 KB Output is correct
18 Correct 33 ms 19832 KB Output is correct
19 Correct 1442 ms 21844 KB Output is correct
20 Correct 601 ms 14712 KB Output is correct
21 Execution timed out 2083 ms 23164 KB Time limit exceeded