Submission #706123

#	Time	Username	Problem	Language	Result	Execution time	Memory
706123		LLLLLLLLLLLLLLLLLLLLLLL	곤돌라 (IOI14_gondola)	C++14	Compilation error	0 ms	0 KiB

gondola

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

const int MOD = 1e9 + 9;

int valid(int n, int v[]){
    set<int> s(v, v + n);
    if((int) s.size() != n) return 0;

    for(int i = 0; i < n; i++){
        if(v[i] > n) continue;

        int left = (v[i] == 1 ? n : v[i] - 1), right = (v[i] == n ? 1 : v[i] + 1);

        int lefViz = (i == 0 ? v[n - 1] : v[i - 1]);
        int rigViz = (i == n - 1 ? v[0] : v[i + 1]);

        if((lefViz != left && lefViz <= n) || (rigViz != right && rigViz <= n)) return 0;
    }

    return 1;
}

int countReplacement(int n, int v[]){
    if(!valid(n, v)) return 0;
}

int replacement(int n, int v[], int g[]){
    int gondola = -1;

    for(int i = 0; i < n; i++)
        if(v[i] > n) gondola = v[i];

    if(gondola == -1) return 0;

    g[0] = gondola;
    return 1;
}

Compilation message (stderr)

gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:26:1: warning: control reaches end of non-void function [-Wreturn-type]
   26 | }
      | ^
/usr/bin/ld: /tmp/ccyC5OMW.o: in function `main':
grader.cpp:(.text.startup+0xb6): undefined reference to `valid'
/usr/bin/ld: grader.cpp:(.text.startup+0x108): undefined reference to `countReplacement'
/usr/bin/ld: grader.cpp:(.text.startup+0x132): undefined reference to `replacement'
collect2: error: ld returned 1 exit status