Submission #138711

#	Time	Username	Problem	Language	Result	Execution time	Memory
138711		Mahmoud_Adel	Gondola (IOI14_gondola)	C++14	Compilation error	0 ms	0 KiB

gondola

#include "gondola.h"
#include <bits/stdc++.h>
typedef long long ll;
const int N = 1e6+5, mod = 1e9+7;
int mark[N], mep[N];
using namespace std;
int valid(int n, int inputSeq[])
{
	for(int i=0; i<n; i++)
	{
		if(mark[inputSeq[i]]) return 0;
		else mark[inputSeq[i]] = 1;
	}
	int j = -1;
	for(int i=0; i<n; i++) if(inputSeq[i] > 0 && inputSeq[i] <= n) j = i;
	if(j == -1) return 1;
	for(int i=0; i<n; i++)
	{
		int id = (i+j)%n, jd = (i+j+1)%n;
		if(inputSeq[jd] > n) inputSeq[jd] = inputSeq[id]%n + 1;
		if(inputSeq[jd] != inputSeq[id]%n + 1) return 0;
	}
	return 1;
}

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

int replacement(int n, int inputSeq[], int replacementSeq[])
{
	memset(mep, 0, sizeof mep);
	int j = -1, c = n;
	for(int i=0; i<n; i++) if(inputSeq[i] <= n) j  = i;
	if(j == -1)
	{
		for(int i=0; i<n; i++) replacementSeq[inputSeq[i]-n-1] = i+1;
		return n;
	}
	for(int i=0; i<n; i++)
	{
		int id = (i+j) % n, jd = (i+j+1) % n;
		if(inputSeq[jd] > n) c = max(c, inputSeq[jd]), mep[inputSeq[jd]] = inputSeq[id]%n + 1,  inputSeq[jd] = inputSeq[id]%n + 1;
	}
	int last = -1;
	for(int i=c; i>n; i--)
	{
		if(mep[i] && last == -1) last = i;
		if(!mep[i]) 
		replacementSeq[i-n-1] = replacementSeq[last-n-1], replacementSeq[last-n-1] = i;
		else replacementSeq[i-n-1] = mep[i];
	}
	return c-n;
}

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

int countReplacement(ll n, int inputSeq[])
{
	
	memset(mep, 0, sizeof mep);
	ll j = -1, c = n;
	for(int i=0; i<n; i++) if(inputSeq[i] <= n) j  = i;
	if(j == -1)
	{
		for(int i=0; i<n; i++)
		{
			c = max(c, (ll)inputSeq[i]);
			mep[inputSeq[i]] = 1;
		}
		ll cnt = 0;
		for(ll i=n+1; i<=c; i++)
		{
			if(!mep[i]) cnt *=  (c-i), cnt %= mod;
		}
		return (cnt*n)%mod;
	}
	for(int i=0; i<n; i++)
	{
		ll id = (i+j) % n, jd = (i+j+1) % n;
		if(inputSeq[jd] > n) c = max(c, (ll)inputSeq[jd]), 
		mep[inputSeq[jd]] = inputSeq[id]%n + 1,  inputSeq[jd] = inputSeq[id]%n + 1;
	}
	ll cnt = 0;
	for(ll i=n+1; i<=c; i++)
	{
		if(!mep[i]) cnt *=  (c-i), cnt %= mod;
	}
	return cnt;
}

Compilation message (stderr)

/tmp/ccgnWUvZ.o: In function `main':
grader.cpp:(.text.startup+0xc3): undefined reference to `countReplacement'
collect2: error: ld returned 1 exit status