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Submission #138796

# Submission time Handle Problem Language Result Execution time Memory
138796 2019-07-30T10:33:39 Z Mahmoud_Adel Gondola (IOI14_gondola) C++14
70 / 100
 89 ms 9076 KB 
#include "gondola.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N = 1e6+5, mod = 1e9+9;
int mep[N];
map<ll, ll> mark;
ll power(ll a, ll b)
{
	if(!b) return 1;
	ll temp = power(a, b/2);
	temp = (temp*temp)%mod;
	if(b%2) temp *= a, temp %= mod;
	return temp;
}
int valid(int n, int inputSeq[])
{
	for(int i=0; i<n; i++)
	{
		if(mark[inputSeq[i]]) return 0;
		else mark[inputSeq[i]] = 1;
	}
	int j = -1;
	for(int i=0; i<n; i++) if(inputSeq[i] > 0 && inputSeq[i] <= n) j = i;
	if(j == -1) return 1;
	for(int i=0; i<n; i++)
	{
		int id = (i+j)%n, jd = (i+j+1)%n;
		if(inputSeq[jd] > n) inputSeq[jd] = inputSeq[id]%n + 1;
		if(inputSeq[jd] != inputSeq[id]%n + 1) return 0;
	}
	return 1;
}

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

int replacement(int n, int inputSeq[], int replacementSeq[])
{
	memset(mep, 0, sizeof mep);
	vector<int> vec;
	int j = -1;
	for(int i=0; i<n; i++) if(inputSeq[i] <= n) j = i;
	if(j == -1) for(int i=0; i<n; i++) vec.push_back(inputSeq[i]), 
	mep[inputSeq[i]] = i+1;
	else
	{
		for(int i=0; i<n; i++)
		{
			int id = (i+j)%n, jd = (i+j+1)%n;
			if(inputSeq[jd] > n)
			{
				vec.push_back(inputSeq[jd]);
				mep[inputSeq[jd]] = inputSeq[id]%n + 1;
				inputSeq[jd] = inputSeq[id]%n + 1;
			}
		}
	}
	sort(vec.begin(), vec.end());
	int cur = n+1, c = 0;
	for(int i : vec)
	{
		int last = mep[i];
		while(cur < i) replacementSeq[c++] = last, last = cur, cur++;
		replacementSeq[c++] = last;
	}
	return c;
}

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

int countReplacement(int n, int inputSeq[])
{
	int tmp[n];
	for(int i=0; i<n; i++) tmp[i] = inputSeq[i];
	if(!valid(n, inputSeq)) return 0;
	for(int i=0; i<n; i++) inputSeq[i] = tmp[i];
	ll j = -1, c = n;
	vector<ll> vec;
	for(int i=0; i<n; i++) if(inputSeq[i] <= n) j  = i;
	else vec.push_back(inputSeq[i]);
	ll ans = 1;
	vec.push_back(n);
	sort(vec.begin(), vec.end());
	for(int i=0; i<vec.size()-1; i++)
	{
		ll tmp = power((ll)vec.size()-i-1, vec[i+1]-vec[i]-1);
		ans = (ans%mod * tmp%mod)%mod;
	}
	return (ans*(j==-1? n:1))%mod;
}

Compilation message

gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:84:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<vec.size()-1; i++)
               ~^~~~~~~~~~~~~
gondola.cpp:77:13: warning: unused variable 'c' [-Wunused-variable]
  ll j = -1, c = n;
             ^

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 25 ms 3064 KB Output is correct
7 Correct 14 ms 1144 KB Output is correct
8 Correct 54 ms 5516 KB Output is correct
9 Correct 16 ms 2040 KB Output is correct
10 Correct 66 ms 6324 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 26 ms 3064 KB Output is correct
7 Correct 14 ms 1144 KB Output is correct
8 Correct 49 ms 5496 KB Output is correct
9 Correct 16 ms 2040 KB Output is correct
10 Correct 62 ms 6264 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 25 ms 2948 KB Output is correct
14 Correct 3 ms 376 KB Output is correct
15 Correct 84 ms 6492 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4216 KB Output is correct
2 Correct 5 ms 4200 KB Output is correct
3 Correct 5 ms 4216 KB Output is correct
4 Correct 5 ms 4216 KB Output is correct
5 Correct 5 ms 4216 KB Output is correct

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 4216 KB Output is correct
2 Correct 6 ms 4216 KB Output is correct
3 Correct 5 ms 4216 KB Output is correct
4 Correct 5 ms 4216 KB Output is correct
5 Correct 5 ms 4216 KB Output is correct
6 Correct 5 ms 4216 KB Output is correct
7 Incorrect 6 ms 4344 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4216 KB Output is correct
2 Correct 5 ms 4216 KB Output is correct
3 Correct 5 ms 4216 KB Output is correct
4 Correct 5 ms 4216 KB Output is correct
5 Correct 5 ms 4216 KB Output is correct
6 Correct 5 ms 4216 KB Output is correct
7 Incorrect 6 ms 4188 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 504 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 380 KB Output is correct

Subtask #9
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 380 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 62 ms 6648 KB Output is correct
10 Correct 48 ms 5620 KB Output is correct
11 Correct 19 ms 2424 KB Output is correct
12 Correct 22 ms 2804 KB Output is correct
13 Correct 6 ms 888 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 368 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 61 ms 6648 KB Output is correct
10 Correct 47 ms 5600 KB Output is correct
11 Correct 18 ms 2424 KB Output is correct
12 Correct 22 ms 2804 KB Output is correct
13 Correct 6 ms 1016 KB Output is correct
14 Correct 78 ms 8272 KB Output is correct
15 Correct 89 ms 9076 KB Output is correct
16 Correct 15 ms 2168 KB Output is correct
17 Correct 62 ms 6104 KB Output is correct
18 Correct 31 ms 3828 KB Output is correct