제출 #117213

실행 실패 (제출 코드 컴파일 에러)

Main.cpp: In function ‘int bfs(int, int)’:
Main.cpp:3:11: error: ‘pair’ was not declared in this scope
    3 |     queue<pair<long long, int>> q;
      |           ^~~~
Main.cpp:3:5: error: ‘queue’ was not declared in this scope
    3 |     queue<pair<long long, int>> q;
      |     ^~~~~
Main.cpp:3:16: error: expected primary-expression before ‘long’
    3 |     queue<pair<long long, int>> q;
      |                ^~~~
Main.cpp:4:5: error: ‘unordered_set’ was not declared in this scope
    4 |     unordered_set<long long> visited;
      |     ^~~~~~~~~~~~~
Main.cpp:4:19: error: expected primary-expression before ‘long’
    4 |     unordered_set<long long> visited;
      |                   ^~~~
Main.cpp:6:5: error: ‘q’ was not declared in this scope
    6 |     q.push({a, 1});
      |     ^
Main.cpp:7:5: error: ‘visited’ was not declared in this scope
    7 |     visited.insert(a);
      |     ^~~~~~~