Submission #476685

#	Time	Username	Problem	Language	Result	Execution time	Memory
476685		TlenekWodoru	Match (CEOI16_match)	C++14	10 / 100	2090 ms	332 KiB

match

#include <bits/stdc++.h>
using namespace std;
string odp;
vector<int>U;
string U2;
string A;
void F(int v)
{
    if(v==A.size())
    {
        if(U.size()==0&&(odp.size()==0||odp>U2))
        {
            odp=U2;
        }
        return;
    }
    if(U.size()>0&&A[U[U.size()-1]]==A[v])
    {
        int kopia=U[U.size()-1];
        U2.push_back(')');
        U.pop_back();
        F(v+1);
        U.push_back(kopia);
        U2.pop_back();
    }
    U.push_back(v);
    U2.push_back('(');
    F(v+1);
    U2.pop_back();
    U.pop_back();
}
int main()
{ ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin>>A;
    F(0);
    if(odp.size()==0){cout<<"-1"<<endl;}
    else{cout<<odp<<endl;}
    return 0;
}

Compilation message (stderr)

match.cpp: In function 'void F(int)':
match.cpp:9:9: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |     if(v==A.size())
      |        ~^~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 0 / 27
• Subtask 3: 0 / 63