Submission #376729

#	Time	Username	Problem	Language	Result	Execution time	Memory
376729		lakshith_	Gondola (IOI14_gondola)	C++14	20 / 100	15 ms	748 KiB

gondola

#include "gondola.h"
#include <bits/stdc++.h>

using namespace std;

bool b[2500010];
int checkOnce(int n,int vec[]){
	for(int i=0;i<n;i++)
		if(b[vec[i]])return 0;
		else b[vec[i]]=true;
	return 1;
}

int valid(int n, int vec[])
{
  	if(!checkOnce(n,vec))return 0;
	int MIN=INT_MAX,minI=0;
	for(int i=0;i<n;i++)if(MIN>vec[i])MIN=vec[i],minI=i;
	int p = MIN;
	int pos = minI;
	if(MIN>n)return 1;
	for(int k=0;k<n;k++){
		if(vec[pos]<=n && vec[pos]!=p)return 0;
		pos++;
		p++;
		pos%=n;
	}
	return 1;
}

int replacement(int n, int a[], int r[])
{
	if(!valid(n,a))return 0;
	int MIN=INT_MAX,minI=0;
	for(int i=0;i<n;i++)if(MIN>a[i])MIN=a[i],minI=i;
	int pos = minI;
	
	pair<int,int> arr[n];
	for(int i=0;i<n;i++)arr[i] = {a[i],i+1};
	
	if(MIN<=n){
		for(int k=0;k<n;k++){
			arr[pos] = {a[pos],k+1};
			pos++,pos%=n;
		}
	}
	sort(arr,arr+n);
	int i;
	for(i=0;i<n;i++)if(arr[i].first>n)break;
	vector<int> ans;
	int prev = n+1;
	for(;i<n;i++){
		ans.push_back(arr[i].second);
		while(prev!=arr[i].first)ans.push_back(prev++);
	}
	int rr[ans.size()];
	for(size_t j=0;j<ans.size();j++)rr[j] = ans[j];
	//for(int x:ans)cout << x << "  ";
	//cout << "\n";
	r = rr;
	return ans.size();
}

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

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

• 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