Submission #706149

#	Time	Username	Problem	Language	Result	Execution time	Memory
706149		LLLLLLLLLLLLLLLLLLLLLLL	Gondola (IOI14_gondola)	C++14	Compilation error	0 ms	0 KiB

gondola

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

const int MOD = 1e9 + 9;
const int INF = 0x3f3f3f3f;

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;
    return 1;
}

int replacement(int n, int v[], int answer[]){
    vector<int> order(n);
    vector<pair<int, int>> aux;

    int mn = INF, mnidx = 0;

    for(int i = 0; i < n; i++)
        if(v[i] < mn){ mn = v[i]; mnidx = i; }

    if(mn > n) mnidx = 0, mn = 1;

    for(int i = 0; i < n; i++){
        order[(i + mnidx) % n] = mn;
        mn = (mn == n ? 1 : mn + 1);
    }

    for(int i = 0; i < n; i++)
        if(v[i] > n) aux.push_back({v[i], order[i]});

    sort(aux.begin(), aux.end());

    int numOp = 0;

    for(int i = 0, val = n; i < aux.size(); i++){
        answer[numOp++] = aux[i].second; val++;

        while(val < aux[i].first)
            answer[numOp++] = val++;
    }
    
    return numOp;
}

Compilation message (stderr)

gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:54:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |     for(int i = 0, val = n; i < aux.size(); i++){
      |                             ~~^~~~~~~~~~~~
/usr/bin/ld: /tmp/ccCT9uIP.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