Submission #825179

#	Time	Username	Problem	Language	Result	Execution time	Memory
825179		alvingogo	Prisoner Challenge (IOI22_prison)	C++17	0 / 100	0 ms	212 KiB

prison

#include "prison.h"
#include <bits/stdc++.h>
#define fs first
#define sc second
#define p_q priority_queue
using namespace std;

int n;
vector<vector<int> > ans;
vector<vector<int>> devise_strategy(int N) {
    n=N;
    vector<int> s(n+1);
    s[0]=0;
    int m=2048;
    for(int i=1;i<=n;i++){
        s[i]=i/m+1;
    }
    ans.push_back(s);
    int fl=1;
    int q=4;
    for(;m>1;m>>=1){
        if(q==4){
            vector<int> x[3]={vector<int>(n+1),vector<int>(n+1),vector<int>(n+1)};
            x[0][0]=x[1][0]=x[2][0]=fl;
            for(int i=1;i<=n;i++){
                for(int j=0;j<3;j++){
                    if(i/m!=(j+1)){
                        if(i/m<j+1){
                            x[j][i]=fl-2;
                        }
                        else{
                            x[j][i]=-1-fl;
                        }
                    }
                    else{
                        if(m==2){
                            x[j][i]=(i%m==0)?(-1-fl):(fl-2);
                        }
                        else{
                            x[j][i]=q+((i%m)>=(m/2)); 
                        }
                    }
                }
            }
            ans.push_back(x[0]);
            ans.push_back(x[1]);
            ans.push_back(x[2]);
            fl^=1;
            q+=2;
        }
        else{
            vector<int> x[2]={vector<int>(n+1),vector<int>(n+1)};
            x[0][0]=x[1][0]=fl;
            for(int i=1;i<=n;i++){
                if(i%(2*m)>=m){
                    x[0][i]=fl-2;
                    if(m==2){
                        x[1][i]=(i%m==0)?(-1-fl):(fl-2);
                    }
                    else{
                        x[1][i]=q+((i%m)>=(m/2)); 
                    }   
                }
                else{
                    if(m==2){
                        x[0][i]=(i%m==0)?(-1-fl):(fl-2);
                    }
                    else{
                        x[0][i]=q+((i%m)>=(m/2)); 
                    }
                    x[1][i]=-1-fl;
                }
            }
            ans.push_back(x[0]);
            ans.push_back(x[1]);
            fl^=1;
            q+=2;
        }
    }
    return ans;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 5
• Subtask 3: 0 / 90