Submission #785185

#	Time	Username	Problem	Language	Result	Execution time	Memory
785185		ono_de206	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<vector<int>> ret(n + 1, vector<int>(n + 1));
	ret[0][0] = 0;
	for(int i = 1; i <= n; i++) {
		ret[0][i] = i;
	}
	for(int i = 1; i <= n; i++) {
		ret[i][0] = 1;
		for(int j = 1; j <= n; j++) {
			if(i < j) ret[i][j] = -1;
			else ret[i][j] = -2;
		}
	}
	return ret;
}

Compilation message (stderr)

prison.cpp: In function 'std::vector<std::vector<int> > devise_strategy(int)':
prison.cpp:6:2: error: 'vector' was not declared in this scope
    6 |  vector<vector<int>> ret(n + 1, vector<int>(n + 1));
      |  ^~~~~~
prison.cpp:6:2: 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:6:16: error: expected primary-expression before 'int'
    6 |  vector<vector<int>> ret(n + 1, vector<int>(n + 1));
      |                ^~~
prison.cpp:7:2: error: 'ret' was not declared in this scope
    7 |  ret[0][0] = 0;
      |  ^~~