Submission #950801

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
950801	2024-03-20 17:46:23	Dec0Dedd	Prisoner Challenge (IOI22_prison)	C++17	10 / 100	12 ms	1372 KiB

prison

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#include <bits/stdc++.h>
#include "prison.h"
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
const int K = 12;
vector<vector<int>> devise_strategy(int n) {
    vector<vector<int>> res(3*K+1, vector<int>(n+1, 0));
    // 3*i+1 - ith bit in A
    // 3*i+2 - ith bit set in A
    // 3*i+3 - ith bit not set in A
    res[0][0]=0;
    for (int i=1; i<=n; ++i) res[0][i]=3*(K-1)+1;
    for (int i=0; i<=K-1; ++i) {
        int s=3*i+1;
        res[s][0]=0;
        for (int j=1; j<=n; ++j) {
            if (j&(1<<i)) res[s][j]=3*i+2;
            else res[s][j]=3*i+3;
        }
        s=3*i+2;
        res[s][0]=1;
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 0 / 90