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Submission #398022

# Submission time Handle Problem Language Result Execution time Memory
398022 2021-05-03T14:31:40 Z prvocislo Gondola (IOI14_gondola) C++17
65 / 100
 66 ms 6772 KB 
#include <iostream>
#include <vector>
#include <algorithm>
#include <set>
#include "gondola.h"
typedef long long ll;
using namespace std;

int valid(int n, int v[])
{
	vector<int> o(n, -1);
	for (int i = 0; i < n; i++) v[i]--;
	set<int> s(v, v + n);
	for (int i = 0; i < n; i++)
	{
		if (v[i] >= n) continue;
		o[i] = v[i];
		for (int j = 0; j < n; j++) o[j] = (v[i] - i + j + n) % n;
		break;
	}
	if (s.size() != n) return 0;
	for (int i = 0; i < n; i++) if (v[i] < n && o[i] != v[i]) return 0;
	return 1;
}
int replacement(int n, int v[], int r[]) { return 0; }
const ll mod = 1e9 + 9;
int mul(const int& a, const int& b) { return (a * 1ll * b) % mod; }
int add(const int& a, const int& b) { return (a + b) % mod; }
void upd(int& a, const int& b) { a = (a + b) % mod; }
int pwr(const int& a, const int& b)
{
	if (!b) return 1;
	int m = pwr(a, b >> 1); m = mul(m, m);
	if (b & 1) m = mul(m, a);
	return m;
}
int countReplacement(int n, int v[])
{
	int *v2 = new int[n];
	for (int i = 0; i < n; i++)v2[i] = v[i];
	if (!valid(n, v2)) return 0;
	int m = 1;
	if (*min_element(v, v + n) > n)
		m = n;
	int num = 0;
	vector<int> e;
	for (int i = 0; i < n; i++)
	{
		if (v[i] > n) num++, e.push_back(v[i]);
	}
	sort(e.begin(), e.end()); int pv = n;
	for (int i = 0; i < e.size(); i++)
	{
		m = mul(m, pwr(num, e[i] - pv - 1));
		num--; pv = e[i];
	}
	return m;
}

Compilation message

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:21:15: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   21 |  if (s.size() != n) return 0;
      |      ~~~~~~~~~^~~~
gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:52:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |  for (int i = 0; i < e.size(); i++)
      |                  ~~^~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 10 ms 2508 KB Output is correct
7 Correct 35 ms 4404 KB Output is correct
8 Correct 29 ms 4528 KB Output is correct
9 Correct 6 ms 1592 KB Output is correct
10 Correct 21 ms 5288 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 11 ms 2508 KB Output is correct
7 Correct 32 ms 4412 KB Output is correct
8 Correct 24 ms 4580 KB Output is correct
9 Correct 6 ms 1596 KB Output is correct
10 Correct 21 ms 5304 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 16 ms 2392 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 42 ms 5516 KB Output is correct

Subtask #4
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct

Subtask #9
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 300 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 43 ms 5048 KB Output is correct
10 Correct 34 ms 4160 KB Output is correct
11 Correct 15 ms 1764 KB Output is correct
12 Correct 16 ms 1996 KB Output is correct
13 Correct 4 ms 716 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 308 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 53 ms 4972 KB Output is correct
10 Correct 33 ms 4168 KB Output is correct
11 Correct 12 ms 1740 KB Output is correct
12 Correct 15 ms 1996 KB Output is correct
13 Correct 4 ms 716 KB Output is correct
14 Correct 52 ms 5912 KB Output is correct
15 Correct 66 ms 6772 KB Output is correct
16 Correct 10 ms 1484 KB Output is correct
17 Correct 39 ms 4548 KB Output is correct
18 Correct 21 ms 2692 KB Output is correct