Submission #793846

#	Time	Username	Problem	Language	Result	Execution time	Memory
793846		Ronin13	Gondola (IOI14_gondola)	C++17	20 / 100	35 ms	5680 KiB

gondola

#include "gondola.h"
#include <bits/stdc++.h>
#define ll long long 
#define ull unsigned ll
#define f first
#define s second
#define pii pair<int,int>
#define pll pair<ll,ll>
#define pb push_back
#define epb emplace_back
using namespace std;

int valid(int n, int a[]){
    vector <pii> vv;
    set <int> st;
    for(int i = 0; i < n; i++){
      if(st.find(a[i]) != st.end())
        return 0;
      st.insert(a[i]);
        if(a[i] <= n)
          vv.pb({a[i], i});
    }
    sort(vv.begin(), vv.end());
    for(int i = 1; i < vv.size(); i++){
      int x = vv[i].s, y = vv[i - 1].s;
      int dist = vv[i].f - vv[i - 1].f;
      if((x - y + n) % n != dist)
        return 0;
    }
    return 1;
}

//----------------------

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
  return -2;
}

//----------------------

int countReplacement(int n, int inputSeq[])
{
  return -3;
}

Compilation message (stderr)

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:24:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |     for(int i = 1; i < vv.size(); i++){
      |                    ~~^~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 10 / 10
• Subtask 4: 0 / 5
• Subtask 5: 0 / 10
• Subtask 6: 0 / 20
• Subtask 7: 0 / 5
• Subtask 8: 0 / 15
• Subtask 9: 0 / 15
• Subtask 10: 0 / 10