제출 #879794

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
879794		Muaath_5	게임 (IOI14_game)	C++17	컴파일 에러	0 ms	0 KiB

game

#include <bits/stdc++.h>
using namespace std;

void initialize(int n);
int hasEdge(int u, int v);

int n;
map<pair<int, int>, int> mp;

int par[N];
int root(int x) {
	return x == par[x] ? x : par[x] = root(par[x]);
}
void merge(int u, int v) {
	u = root(u), v = root(v);
  	if (u == v) return;
  	par[v] = u;
}

void initialize(int cnt)
{
	n = cnt;
	mp.clear();
  	for (int i = 1; i <= cnt; i++)
  		par[i] = i;
}

int hasEdge(int u, int v)
{
  	if (u > v) swap(u, v);
	if (root(u) == root(v))
    	return 1;
    mp[{u, v}]++;
  	if (mp[{u, v}] == n-1) {
      	merge(u, v);
      	return 1;
    }
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

game.cpp:10:9: error: 'N' was not declared in this scope
   10 | int par[N];
      |         ^
game.cpp: In function 'int root(int)':
game.cpp:12:14: error: 'par' was not declared in this scope; did you mean '__pstl::execution::v1::par'?
   12 |  return x == par[x] ? x : par[x] = root(par[x]);
      |              ^~~
      |              __pstl::execution::v1::par
In file included from /usr/include/c++/10/pstl/glue_algorithm_defs.h:15,
                 from /usr/include/c++/10/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from game.cpp:1:
/usr/include/c++/10/pstl/execution_defs.h:111:27: note: '__pstl::execution::v1::par' declared here
  111 | constexpr parallel_policy par{};
      |                           ^~~
game.cpp: In function 'void merge(int, int)':
game.cpp:17:4: error: 'par' was not declared in this scope; did you mean '__pstl::execution::v1::par'?
   17 |    par[v] = u;
      |    ^~~
      |    __pstl::execution::v1::par
In file included from /usr/include/c++/10/pstl/glue_algorithm_defs.h:15,
                 from /usr/include/c++/10/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from game.cpp:1:
/usr/include/c++/10/pstl/execution_defs.h:111:27: note: '__pstl::execution::v1::par' declared here
  111 | constexpr parallel_policy par{};
      |                           ^~~
game.cpp: In function 'void initialize(int)':
game.cpp:25:5: error: 'par' was not declared in this scope; did you mean '__pstl::execution::v1::par'?
   25 |     par[i] = i;
      |     ^~~
      |     __pstl::execution::v1::par
In file included from /usr/include/c++/10/pstl/glue_algorithm_defs.h:15,
                 from /usr/include/c++/10/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from game.cpp:1:
/usr/include/c++/10/pstl/execution_defs.h:111:27: note: '__pstl::execution::v1::par' declared here
  111 | constexpr parallel_policy par{};
      |                           ^~~