Submission #774070

#	Time	Username	Problem	Language	Result	Execution time	Memory
774070		jasmin	Prisoner Challenge (IOI22_prison)	C++17	Compilation error	0 ms	0 KiB

prison

#include "prison.h"

#include <vector>

std::vector<std::vector<int>> devise_strategy(int n) {

    vector<int> ans(n+1, -1);
    
    ans[0][0]=0;
    for(int i=1; i<=n; i++){
        ans[i][0]=1;
    }

    for(int i=1; i<=n; i++){
        for(int j=1; j<=n; j++){

            if(j<i){
                ans[i][j]=-2;
            }
            else{
                ans[i][j]=-1;
            }

        }
    }

    return ans;
}

Compilation message (stderr)

prison.cpp: In function 'std::vector<std::vector<int> > devise_strategy(int)':
prison.cpp:7:5: error: 'vector' was not declared in this scope
    7 |     vector<int> ans(n+1, -1);
      |     ^~~~~~
prison.cpp:7:5: note: suggested alternatives:
In file included from /usr/include/c++/10/vector:67,
                 from prison.h:1,
                 from prison.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:389:11: note:   'std::vector'
  389 |     class vector : protected _Vector_base<_Tp, _Alloc>
      |           ^~~~~~
In file included from prison.h:1,
                 from prison.cpp:1:
/usr/include/c++/10/vector:86:13: note:   'std::pmr::vector'
   86 |       using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>;
      |             ^~~~~~
prison.cpp:7:12: error: expected primary-expression before 'int'
    7 |     vector<int> ans(n+1, -1);
      |            ^~~
prison.cpp:9:5: error: 'ans' was not declared in this scope
    9 |     ans[0][0]=0;
      |     ^~~