Submission #819156

#	Time	Username	Problem	Language	Result	Execution time	Memory
819156		andecaandeci	Gondola (IOI14_gondola)	C++17	25 / 100	19 ms	5008 KiB

gondola

#include "gondola.h"
#include <bits/stdc++.h>
using namespace std;
using pii=pair<int,int>;
#define SETIO cin.tie(0);cout.tie(0);ios_base::sync_with_stdio(false);
#define fi first
#define se second
#define pb push_back
#define SORT(v) sort(begin(v),end(v))
#define REV(v) reverse(begin(v),end(v))
#define FORI(v) for(auto i:v)
#define REP(i,o,n) for(int i=o;i<n;i++)
#define int long long

const int mod = 1e9+7;

#undef int
int valid(int n, int inputSeq[])
#define int long long
{
  set<int> st;
  int cur=-1;
  REP(i,0,n) {
    st.insert(inputSeq[i]);
    if(inputSeq[i]<=n){
      if(cur!=-1)if(cur!=inputSeq[i])return 0;
      cur=inputSeq[i];
    }
    if(cur!=-1)cur++;
    if(cur==n+1)cur=1;
  }
  if(st.size()!=n)return 0;
  return 1;
}

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

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

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

#undef int
int countReplacement(int n, int inputSeq[])
#define int long long
{
  if(!valid(n, inputSeq))return 0;
  vector<int> overs;
  REP(i,0,n){
    int q=inputSeq[i];
    if(q>n)overs.pb(q);
  }
  SORT(overs);
  REV(overs);
  int cur=n;
  int ans=1;
  if(overs.size()==n)REP(i,1,n)ans*=(i+1),ans%=mod;
  while(overs.size()){
    cur++;
    if(cur==overs.back()){overs.pop_back();continue;}
    ans*=overs.size();
    ans%=mod;
  }
  return ans;
}

Compilation message (stderr)

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:32:15: warning: comparison of integer expressions of different signedness: 'std::set<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   32 |   if(st.size()!=n)return 0;
      |      ~~~~~~~~~^~~
gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:61:18: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   61 |   if(overs.size()==n)REP(i,1,n)ans*=(i+1),ans%=mod;
      |      ~~~~~~~~~~~~^~~

• 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: 5 / 5
• Subtask 8: 0 / 15
• Subtask 9: 0 / 15
• Subtask 10: 0 / 10