Submission #858664

#	Time	Username	Problem	Language	Result	Execution time	Memory
858664		MasterDobby	Prisoner Challenge (IOI22_prison)	C++17	Compilation error	0 ms	0 KiB

prison

#include <bits/stdc++.h>
#include "prison.h"
#define all(a) a.begin(),a.end()
#define pii pair<int,int>

using namespace std;
using ll = long long;

vector<vector<int>> devise_strategy(int N){
    vector<vector<int>> ans(505,vector<int>(N+5));
    memset(ans,0,sizeof ans);
    for(int i=1;i<=N;i++) ans[0][i]=i;
    for(int i=1;i<=500;i++){
        for(int j=1;j<=N;j++){
            if(i>j) ans[i][j]=-1;
            else ans[i][j]=-2;
        }
    }
    return ans;
}

Compilation message (stderr)

prison.cpp: In function 'std::vector<std::vector<int> > devise_strategy(int)':
prison.cpp:11:12: error: cannot convert 'std::vector<std::vector<int> >' to 'void*'
   11 |     memset(ans,0,sizeof ans);
      |            ^~~
      |            |
      |            std::vector<std::vector<int> >
In file included from /usr/include/features.h:461,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/os_defines.h:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/c++config.h:518,
                 from /usr/include/c++/10/cassert:43,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33,
                 from prison.cpp:1:
/usr/include/x86_64-linux-gnu/bits/string_fortified.h:59:1: note:   initializing argument 1 of 'void* memset(void*, int, size_t)'
   59 | __NTH (memset (void *__dest, int __ch, size_t __len))
      | ^~~~~