Submission #204644

#	Time	Username	Problem	Language	Result	Execution time	Memory
204644		a_player	Gondola (IOI14_gondola)	C++14	Compilation error	0 ms	0 KiB

gondola

#include <bits/stdc++.h>
#define f first
#define s second
#define mp make_pair
#define rep replacementSeq
#define MOD 1000000009

using namespace std;

const int MAXN = 250e3+5;

bitset<MAXN> v;

int valid(int n, int inputSeq[])
{
    for(int i=0;i<n;i++){
        if(v[inputSeq[i]])return 0;
        v[inputSeq[i]]=1;
    }
    int mini=min_element(inputSeq,inputSeq+n)-inputSeq;
    int ans=1;
    if(inputSeq[mini]>n)return 1;
    int i=(mini-inputSeq[mini]+1+n)%n;
    for(int j=0;j<n-1;j++){
        if(inputSeq[(i+j)%n]>n||inputSeq[(i+j+1)%n]>n)continue;
        ans*=(inputSeq[(i+j)%n]+1==inputSeq[(i+j+1)%n]);
    }
    
    return ans;
}

//----------------------
vector<pair<int,int> > a;
int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
  int ind=-1;
  for(int i=0;i<n;i++)if(gondolaSeq[i]<=n)ind=i;
  if(ind==-1){
    for(int j=0;j<n;j++)a.push_back(mp(gondolaSeq[j],j+1));
  }else{
  ind=(ind-gondolaSeq[ind]+1+n)%n;
  for(int j=0;j<n;j++)a.push_back(mp(gondolaSeq[(ind+j)%n],j+1));
  }
  sort(a.begin(),a.end());
  int id=0;
  int k=n;
  for(pair<int,int> x:a){
    if(x.f==x.s)continue;
      rep[id++]=x.s;
      for(k+=1;k<x.f;k++)rep[id++]=k;
  }
  return id;
}

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

int pot(int n, int a){
  if(n==0)return 1;
  int h=pot(n/2,a)%MOD;
  h=(h*h)%MOD;
  if(n%2)h=(h*a)%MOD;
  return h;
}

int countReplacement(int n, int inputSeq[])
{
  if(!valid(n,inputSeq))return 0;
  int ans=1;
  sort(inputSeq,inputSeq+n);
  bool flag=1;
  for(int i=0;i<n;i++)flag*=inputSeq[i]>n;
  if(flag)ans=n;
  int k=n;
  for(int i=0;i<n;i++){
      if(inputSeq[i]<=k)continue;
      ans=(ans*pot(inputSeq[i]-k-1,n-i))%MOD;
      k=inputSeq[i];
  }
  return ans%MOD;
}

Compilation message (stderr)

gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:71:27: warning: '*' in boolean context, suggest '&&' instead [-Wint-in-bool-context]
   for(int i=0;i<n;i++)flag*=inputSeq[i]>n;
                       ~~~~^~~~~~~~~~~~~~~
/tmp/cchikQ7q.o: In function `main':
grader.cpp:(.text.startup+0xc3): undefined reference to `countReplacement'
grader.cpp:(.text.startup+0xe2): undefined reference to `valid'
grader.cpp:(.text.startup+0x106): undefined reference to `replacement'
collect2: error: ld returned 1 exit status