Submission #306877

#	Time	Username	Problem	Language	Result	Execution time	Memory
306877		syy	Gondola (IOI14_gondola)	C++17	20 / 100	46 ms	4856 KiB

gondola

#include "gondola.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
#define FOR(i, a, b) for(int i = (int)a; i <= (int)b; i++)
#define DEC(i, a, b) for(int i = (int)a; i >= (int)b; i--)
typedef pair<int, int> pi;
typedef pair<pi, int> pii;
typedef pair<pi, pi> pipi;
#define f first
#define s second
typedef vector<int> vi;
typedef vector<pi> vpi;
typedef vector<pii> vpii;
#define pb push_back
#define pf push_front
#define all(v) v.begin(), v.end()
#define disc(v) sort(all(v)); v.resize(unique(all(v)) - v.begin());
#define INF (int) 1e9 + 100
#define LLINF (ll) 1e18
#define fastio ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define sandybridge __attribute__((optimize("Ofast"), target("arch=sandybridge")))
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());    //can be used by calling rng() or shuffle(A, A+n, rng)
inline ll rand(ll x, ll y) { ++y; return (rng() % (y-x)) + x; } //inclusivesss

int valid(int n, int arr[]) {
	pi p = pi(INF, 0);
	set<int> s; FOR(i, 0, n-1) s.insert(arr[i]);
	if (s.size() < n) return 0;
	FOR(i, 0, n-1) p = min(p, pi(arr[i], i));
	FOR(i, p.s, p.s+n-1) if (arr[i%n] != i-p.s+1 and arr[i%n] <= n) return 0;
	return 1; 
}

int replacement(int n, int gondolaSeq[], int replacementSeq[]) {
	return -2;
}

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

Compilation message (stderr)

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:30:15: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   30 |  if (s.size() < n) return 0;
      |               ^

• 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