Submission #918966

#	Time	Username	Problem	Language	Result	Execution time	Memory
918966		vjudge1	Bajka (COCI20_bajka)	C++17	20 / 70	9 ms	1368 KiB

bajka

#include "bits/stdc++.h"
using namespace std;
string a, b;
vector< vector<long long> > Memorizaci_n;
long long Resolver(long long i, long long j){
    //cout<<i<<" "<<j<<"\n";
    if(i <= -1 or i >= a.size() or a[i] != b[j]) return -1;
    long long Retorno = -1;
    if(Memorizaci_n[i][j] != -2) return Memorizaci_n[i][j];
    else if(j >= b.size() - 1) return 0;
    Memorizaci_n[i][j] = -1;
    long long A = Resolver(i - 1, j + 1);
    if(A != -1){
        if(Retorno == -1) Retorno = A + 1;
        else Retorno = min(Retorno, A + 1);
    }
    A = Resolver(i + 1, j + 1);
    if(A != -1){
        if(Retorno == -1) Retorno = A + 1;
        else Retorno = min(Retorno, A + 1);
    }
    for(long long k = i + 1; k < a.size(); k++){
        if(a[k] == a[i]){
            A = Resolver(k, j);
            if(A != -1){
                if(Retorno == -1) Retorno = A + abs(i - k);
                else Retorno = min(Retorno, A + abs(i - k));
            }
            //break;
        }
    }
    for(long long k = i - 1; k > -1; k--){
        if(a[k] == a[i]){
            A = Resolver(k, j);
            if(A != -1){
                if(Retorno == -1) Retorno = A + abs(i - k);
                else Retorno = min(Retorno, A + abs(i - k));
            }
            //break;
        }
    }
    return Memorizaci_n[i][j] = Retorno;
}
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    long long n, m;
    cin>>n>>m>>a>>b;
    Memorizaci_n.assign(n, vector<long long>(m, -2));
    long long Respuesta = -1;
    vector<long long> Posibles;
    for(long long i = 0; i < n; i++) if(a[i] == b[0]) Posibles.push_back(Resolver(i, 0));
    sort(Posibles.begin(), Posibles.end());
    for(long long i = 0; i < Posibles.size(); i++){
        if(Posibles[i] != -1){
            Respuesta = Posibles[i];
            break;
        }
    }
    /*for(auto E: Memorizaci_n){
        for(auto e: E) cout<<e<<" ";
        cout<<"\n";
    }*/
    cout<<Respuesta;
    return 0;
}

Compilation message (stderr)

bajka.cpp: In function 'long long int Resolver(long long int, long long int)':
bajka.cpp:7:21: 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]
    7 |     if(i <= -1 or i >= a.size() or a[i] != b[j]) return -1;
      |                   ~~^~~~~~~~~~~
bajka.cpp:10:15: 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]
   10 |     else if(j >= b.size() - 1) return 0;
      |             ~~^~~~~~~~~~~~~~~
bajka.cpp:22:32: 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]
   22 |     for(long long k = i + 1; k < a.size(); k++){
      |                              ~~^~~~~~~~~~
bajka.cpp: In function 'int main()':
bajka.cpp:54:28: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |     for(long long i = 0; i < Posibles.size(); i++){
      |                          ~~^~~~~~~~~~~~~~~~~

• Subtask 1: 20 / 20
• Subtask 2: 0 / 50