Submission #625993

#	Time	Username	Problem	Language	Result	Execution time	Memory
625993		huutuan	Prisoner Challenge (IOI22_prison)	C++17	30 / 100	22 ms	1804 KiB

prison

#include "prison.h"
#include<bits/stdc++.h>

using namespace std;

vector<vector<int>> devise_strategy(int n){
    vector<vector<int>> v(44, vector<int>(n+1));
    for (int i=0; i<44; ++i) v[i][0]=1;
    v[0][0]=v[1][0]=v[2][0]=v[3][0]=0;
    int mm=1000;
    for (int r=0; r<4; ++r){
        for (int i=10*r+4; i<10*(r+1)+4; ++i){
            for (int j=1; j<=n; ++j){
                int t=j/mm%10;
                if ((i-4)%10<t) v[i][j]=-1;
                if ((i-4)%10>t) v[i][j]=-2;
                if ((i-4)%10==t) v[i][j]=r+1;
            }
        }
        for (int j=1; j<=n; ++j){
            v[r][j]=10*r+(j/mm)%10+4;
        }
        mm/=10;
    }
    return v;
}

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 20 / 90