제출 #930565

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
930565		vjudge1	게임 (IOI14_game)	C++17	컴파일 에러	0 ms	0 KiB

game

#include <bits/stdc++.h>
#include "game.h"

using namespace std;

#define pb push_back

vector<vector<int>> graph;
vector<int> added, asked;

int cnt = 1;

void initialize(int n)
{
    graph.resize(n);
    added.resize(n);
    asked.resize(n);
    added[0] = 1;
}

int hasEdge(int u, int v)
{
    if ((added[u] and added[v]) or (!added[u] and !added[v]))
    {
        graph[u].pb(v);
        graph[v].pb(u);
        return 0;
    }
    if (added[v])
        swap(u, v);

    if (cnt - asked[v] == 1)
    {
        cnt++;
        for (auto tov : graph[v])
            asked[tov]++;

        added[v] = 1;
        return 1;
    }
    asked[v]++;
    return 0;
}

int read_int()
{
    int x;
    assert(scanf("%d", &x) == 1);
    return x;
}

int main()
{
    int n, u, v;
    n = read_int();
    initialize(n);
    for (int i = 0; i < n * (n - 1) / 2; i++)
    {
        u = read_int();
        v = read_int();
        printf("%d\n", hasEdge(u, v));
    }
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

/usr/bin/ld: /tmp/cchVlX3D.o: in function `read_int()':
grader.cpp:(.text+0x0): multiple definition of `read_int()'; /tmp/cc6KPXSC.o:game.cpp:(.text+0x0): first defined here
/usr/bin/ld: /tmp/cchVlX3D.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cc6KPXSC.o:game.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status