제출 #1081074

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1081074		Kipras	봉쇄 시간 (IOI23_closing)	C++17	컴파일 에러	0 ms	0 KiB

closing

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

bool are_connected(vector<int> a, vector<int> b);

vector<int> longest_trip(int N, int D)
{
    if(D==3) {
        vector<int> a;
        for(int i = 0; i < N; i++)a.push_back(i);
        return a;
    }else if(D==2) {
        deque<int> q;
        if(!are_connected({0}, {1})) {
            q.push_back(0);
            q.push_back(2);
            q.push_back(1);
        }
        else if(!are_connected({0}, {2})) {
            q.push_back(0);
            q.push_back(1);
            q.push_back(2);
        }
        else {
            q.push_back(1);
            q.push_back(0);
            q.push_back(2);
        }

        for(int i = 3; i < N; i++) {
            if(are_connected({q.front()}, {i}))
                q.push_front(i);
            else
                q.push_back(i);
        }

        vector<int> a;
        for(int i = 0; i < N; i++) {
            a.push_back(q.front());
            q.pop_front();
        }
        return a;

    }
}

컴파일 시 표준 에러 (stderr) 메시지

closing.cpp: In function 'std::vector<int> longest_trip(int, int)':
closing.cpp:46:1: warning: control reaches end of non-void function [-Wreturn-type]
   46 | }
      | ^
/usr/bin/ld: /tmp/ccLzaHu8.o: in function `longest_trip(int, int)':
closing.cpp:(.text+0x287): undefined reference to `are_connected(std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
/usr/bin/ld: closing.cpp:(.text+0x3c2): undefined reference to `are_connected(std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
/usr/bin/ld: closing.cpp:(.text+0x583): undefined reference to `are_connected(std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
/usr/bin/ld: /tmp/ccDmKXR5.o: in function `main':
grader.cpp:(.text.startup+0x6a1): undefined reference to `max_score(int, int, int, long long, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status