oj.uz

Submission #864361

# Submission time Handle Problem Language Result Execution time Memory
864361 2023-10-22T15:40:54 Z lalig777 Pohlepko (COCI16_pohlepko) C++14
80 / 80
 135 ms 9024 KB 
#include <iostream>
#include <vector>
#include <queue>
using namespace std;

struct info{
    int fila;
    int columna;
    int nivel;
    char letra;
};

string bfs(int n, int m, vector<vector<char>>tablero){
    int nivelactual=0;
    string s="";
    s+=tablero[0][0];
    queue<info>cola;
    vector<vector<bool>>visto(n, vector<bool>(m, false));
    info primero;
    primero.fila=1;
    primero.columna=0;
    primero.nivel=1;
    primero.letra=s[0];
    cola.push(primero);
    primero.fila=0;
    primero.columna=1;
    cola.push(primero);
    while (!cola.empty()){
        int i_actual=cola.front().fila;
        int j_actual=cola.front().columna;
        if (i_actual==n or j_actual==m or visto[i_actual][j_actual]==true){
            cola.pop();
            continue;
        }if (cola.front().nivel!=nivelactual){
            nivelactual++;
            s+='z';
        }if (s[nivelactual-1]==cola.front().letra){
            if (s[nivelactual]>=tablero[i_actual][j_actual]){
                visto[i_actual][j_actual]=true;
                s[nivelactual]=tablero[i_actual][j_actual];
                info casilla;
                casilla.fila=i_actual+1;
                casilla.columna=j_actual;
                casilla.nivel=nivelactual+1;
                casilla.letra=s[nivelactual];
                cola.push(casilla);
                casilla.fila--;
                casilla.columna++;
                cola.push(casilla);
            }
        }cola.pop();
    }return s;
}

int main(){
    int n, m;
    cin>>n>>m;
    vector<vector<char>>tablero(n, vector<char>(m));
    for (int i=0; i<n; i++){
        for (int j=0; j<m; j++) cin>>tablero[i][j];
    }cout<<bfs(n, m, tablero)<<'\n';
    return 0;
}

Subtask #1
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 8 ms 860 KB Output is correct
7 Correct 43 ms 3312 KB Output is correct
8 Correct 126 ms 9008 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 4 ms 604 KB Output is correct
12 Correct 11 ms 1116 KB Output is correct
13 Correct 7 ms 1524 KB Output is correct
14 Correct 135 ms 9024 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 64 ms 3920 KB Output is correct