Submission #1321618

#	Time	Username	Problem	Language	Result	Execution time	Memory
1321618		tsetsenbileg	Gondola (IOI14_gondola)	C++20	0 / 100	2 ms	1456 KiB

gondola

#include "gondola.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
using pr = pair<int, int>;
const int INF = 1e9+7, MOD = 1e9+9;

int startpos(int n, const vector<int>& a) {
	int minpos = min_element(a.begin(), a.end()) - a.begin();
	int start = ((minpos - a[minpos] + 1) % n + n) % n;
}

int valid(int n, int inputSeq[]) {
  	vector<int> a(n);
  	for (int i = 0; i < n; i++) a[i] = inputSeq[i];
	int cur = 1;
	int start = startpos(n, a);
	for (int i = start; i < n; i++) {
		if (a[i] > n || cur == a[i]) {
			cur++;
		}
		else return 0;
	}
	for (int i = 0; i < start; i++) {
		if (a[i] > n || cur == a[i]) {
			cur++;
		}
		else return 0;
	}
	sort(a.begin(), a.end());
	auto it = upper_bound(a.begin(), a.end(), n) - a.begin();
	if (it == n) return 1;
	if (a[it] != n+1) return 0;
	for (int i = it+1; i < n; i++) {
		if (a[i] != a[i-1] + 1) return 0;
	}
	return 1;
}


int replacement(int n, int gondolaSeq[], int replacementSeq[]) {
  	vector<int> a = {0};
	for (int i = 0; i < n; i++) a.pb(gondolaSeq[i]);
	int start = startpos(n, a);
	vector<pr> broke;
	int cur = 1;
	for (int i = start; i < n; i++) {
		if (a[i] > n) {
			broke.pb({a[i], cur});
		}
		cur++;
	}
	for (int i = 0; i < start; i++) {
		if (a[i] > n) {
			broke.pb({a[i], cur});
		}
		cur++;
	}
	int l = 0;
	sort(broke.begin(), broke.end());
	int curn = n+1;
	for (auto [num, fir] : broke) {
		replacementSeq[l] = fir;
		l++;
		for (int i = curn; i < num; i++) {
			replacementSeq[l] = i;
			l++;
		}
		curn = num+1;
	}
	return l;
}

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

Compilation message (stderr)

gondola.cpp: In function 'int startpos(int, const std::vector<int>&)':
gondola.cpp:11:1: warning: no return statement in function returning non-void [-Wreturn-type]
   11 | }
      | ^

• Subtask 1: 0 / 5
• Subtask 2: 0 / 5
• Subtask 3: 0 / 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