Submission #230683

#	Time	Username	Problem	Language	Result	Execution time	Memory
230683		monus1042	Gondola (IOI14_gondola)	C++17	55 / 100	31 ms	4752 KiB

gondola

#include "gondola.h"
#include <bits/stdc++.h>
using namespace std;
#define ii pair<int, int>
#define vi vector<int>
#define vii vector<ii>
#define eb emplace_back
#define all(x) x.begin(), x.end()

int valid(int n, int inputSeq[])
{
	unordered_set<int> ch;
	for (int i=0; i<n; i++){
		ch.insert(inputSeq[i]);
	}
	if ((int)ch.size()==n){
		int fi=1000000, se=1000000;
		for (int i=0; i<n; i++){
			if (1<=inputSeq[i] && inputSeq[i]<=n && inputSeq[i]<fi){
				fi=inputSeq[i];
				se=i;
			}
		}
		if (fi==1000000){
			return 1;
		}else{
			bool check=1;
			for (int i=se, track=fi; i<se+n; i++, track++){
				if (1<=inputSeq[i%n] && inputSeq[i%n]<=n){
					if (inputSeq[i%n] == track){
						
					}else{
						check=0;
						break;
					}
				}
			}
			if (check) return 1;
			return 0;
		}
	}else{
		return 0;
	}
}

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

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
	vii delta;
	int cnt=0;
	for (int i=0; i<n; i++){
		if (1<=gondolaSeq[i] && gondolaSeq[i]<=n){
			cnt++;
		}
	}
	if (!cnt){
		for (int i=0; i<n; i++){
			delta.eb(ii(gondolaSeq[i], i+1)); //del, #
		}
		sort(all(delta));

		vi ret;
		int curr=n+1;
		for (int i=0; i<n; i++){
			while(1){
				if (curr>delta[i].first) break;
				ret.eb(delta[i].second);
				delta[i].second=curr;
				curr++;
			}
		}
		int si=ret.size();
		for (int i=0; i<si; i++){
			replacementSeq[i]=ret[i];
		}
		return si;
	}else if (cnt==n){
		return 0;
	}else{
		//cout<<"XD\n";
		int mini=1000000, pos=0;
		for (int i=0; i<n; i++){
			if (gondolaSeq[i]<mini){
				mini=gondolaSeq[i];
				pos=i;
			}
		}
		int diff=mini-1;
		pos-=diff;
		pos%=n;
		pos+=n;
		pos%=n;

		//cout<<pos<<endl;
		vi ret;
		for (int i=pos, track=1; i<n+pos; i++, ++track){
			if (gondolaSeq[i%n]>n)
				delta.eb(ii(gondolaSeq[i%n], track));
		}

		sort(all(delta));
		//cout<<delta[0].second<<endl;
		int curr=n+1, dels=delta.size();
		for (int i=0; i<dels; i++){
			while(1){
				if (curr>delta[i].first) break;
				ret.eb(delta[i].second);
				delta[i].second=curr;
				curr++;
			}
		}
		int si=ret.size();
		for (int i=0; i<si; i++){
			replacementSeq[i]=ret[i];
		}
		return si;
	}
}

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

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

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