Submission #762124

#	Time	Username	Problem	Language	Result	Execution time	Memory
762124		raysh07	Prisoner Challenge (IOI22_prison)	C++17	Compilation error	0 ms	0 KiB

prison

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

vector<vector<int>> devise_strategy(int n) {
    vector<vector<int>> ans(29, vector<int>(n + 1));
    for (int i = 0; i <= 28; i++){
        if (i % 3 == 0) ans[i][0] = 0;
        else ans[i][0] = 1;
        
        for (int j = 1; j <= n; j++){
            int bit = 12 - (i/3);
            if (i % 3 == 0){
                ans[i][j] = i + 1 + (j >> bit & 1);
            } else {
                int ba = (i % 3) - 1;
                int bb = (j >> bit & 1);
                if (ba < bb) ans[i][j] = -1;
                else if (ba > bb) ans[i][j] = -2;
                else ans[i][j] = ((i/3) + 1) * 3;
            }
        }
    }
    return ans;
}

Compilation message (stderr)

prison.cpp:4:1: error: 'vector' does not name a type
    4 | vector<vector<int>> devise_strategy(int n) {
      | ^~~~~~