oj.uz

Submission #138799

# Submission time Handle Problem Language Result Execution time Memory
138799 2019-07-30T10:36:55 Z Mahmoud_Adel Gondola (IOI14_gondola) C++14
70 / 100
 93 ms 8180 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;
	int r = *max_element(inputSeq, inputSeq+n);
	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 r-n;
}

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

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:85:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<vec.size()-1; i++)
               ~^~~~~~~~~~~~~
gondola.cpp:78:13: 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 256 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

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 252 KB Output is correct
2 Correct 2 ms 312 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 276 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 24 ms 2780 KB Output is correct
7 Correct 13 ms 632 KB Output is correct
8 Correct 49 ms 5108 KB Output is correct
9 Correct 14 ms 1784 KB Output is correct
10 Correct 58 ms 5880 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 296 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
6 Correct 24 ms 2812 KB Output is correct
7 Correct 14 ms 760 KB Output is correct
8 Correct 48 ms 5112 KB Output is correct
9 Correct 15 ms 1784 KB Output is correct
10 Correct 59 ms 5952 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 24 ms 2680 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 60 ms 6092 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4276 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

Subtask #5
0 / 10.0

# 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 4192 KB Output is correct
4 Correct 5 ms 4216 KB Output is correct
5 Correct 5 ms 4220 KB Output is correct
6 Correct 5 ms 4216 KB Output is correct
7 Incorrect 5 ms 4216 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 4220 KB Output is correct
2 Correct 5 ms 4216 KB Output is correct
3 Correct 5 ms 4216 KB Output is correct
4 Correct 8 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 5 ms 4216 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 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct

Subtask #8
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 376 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 256 KB Output is correct

Subtask #9
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 252 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 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 67 ms 6152 KB Output is correct
10 Correct 50 ms 5308 KB Output is correct
11 Correct 21 ms 2296 KB Output is correct
12 Correct 27 ms 2676 KB Output is correct
13 Correct 7 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 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 66 ms 6176 KB Output is correct
10 Correct 51 ms 5216 KB Output is correct
11 Correct 18 ms 2296 KB Output is correct
12 Correct 23 ms 2676 KB Output is correct
13 Correct 6 ms 860 KB Output is correct
14 Correct 77 ms 7416 KB Output is correct
15 Correct 93 ms 8180 KB Output is correct
16 Correct 15 ms 1916 KB Output is correct
17 Correct 57 ms 5492 KB Output is correct
18 Correct 31 ms 3544 KB Output is correct