oj.uz

Submission #926838

# Submission time Handle Problem Language Result Execution time Memory
926838 2024-02-13T21:29:13 Z NintsiChkhaidze Gondola (IOI14_gondola) C++17
100 / 100
 57 ms 8272 KB 
#include "gondola.h"
#include <bits/stdc++.h>
#define pb push_back
#define s second
#define f first
#define ll long long
using namespace std;
int b[200005],c[200005],a[200005];
const int mod = 1e9 + 9;
 
int valid(int n, int gondolaSeq[]){
	map <int,int> mp;
	
	int k = -1;
	for (int i=0;i<n;i++){
		a[i] = gondolaSeq[i];
		if (mp.find(a[i]) != mp.end()) return 0;
		mp[a[i]] = 1;
 		if (a[i] > n) continue;
		if (k == -1) k= i;
		else if (a[k] > a[i]) k = i;
	}
	if (k==-1) return 1;
		
	int m = 0;
	int st = a[k];
	for (int j = k; j < n; j++)
		if (a[j] <= n) b[++m] = a[j],c[m] = st + (j - k);
	
	for (int j = 0; j < k; j++)
		if (a[j] <= n) b[++m] = a[j],c[m] = st + (n - k) + j;
	
	for (int i = 1; i <= m; i++){
		if (b[i] != c[i]) return 0;
	}
  	return 1;
}
 
//----------------------
 
int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
	int k = -1;
	for (int i=0;i<n;i++){
		a[i] = gondolaSeq[i];
 		if (a[i] > n) continue;
 		
		if (k == -1) k= i;
		else if (a[k] > a[i]) k = i;
	}
	int st;
	if (k == -1) k = 0,st = 1;
	else st = a[k];
		
	for (int j = k; j < n; j++) b[j] = st + (j - k);	
	for (int j = 0; j < k; j++) b[j] = st + (n - k) + j;
	for (int j = 0; j < n; j++) if (b[j] > n)  b[j] -= n;
	
	int x = n + 1,m = -1;
	vector <pair <int,int> > vec;
	for (int i=0;i<n;i++){
		if (gondolaSeq[i] > n) vec.pb({gondolaSeq[i],i});
	}
	sort(vec.begin(),vec.end());
	
	for (int j=0;j<vec.size();j++){
		int final = vec[j].f,i = vec[j].s;
		int cur = b[i];
		while (cur != final){
			replacementSeq[++m] = cur;
			cur = x++;
		}
	}
	
	return m + 1;
}
 
//----------------------
 
ll pwr(ll a,ll b){
 	ll c=1;
 	while (b){
 		if (b&1) c=c*a%mod;
 		a=a*a%mod;
 		b/=2;
	}
 	return c;
}
 
int countReplacement(int n, int inputSeq[]){
	int chk = valid(n,inputSeq);
	if (!chk) return 0;
	
	vector <int> vec;
	vec.pb(n);
	for (int i = 0; i < n; i++)
		if(inputSeq[i] > n) vec.pb(inputSeq[i]);
	sort(vec.begin(),vec.end());
	
	ll ans = 1,len = vec.size();
	for (int i = 1; i < vec.size(); i++){
		ll dist = vec[i] - vec[i - 1] - 1;
		if (dist > 0) ans = ans * pwr(len - i,dist) % mod;
	}
	
	int k = -1;
	for (int i=0;i<n;i++){
 		if (inputSeq[i] <= n) k = i;
	}
	if (k == -1) ans=ans*n%mod;

	return ans;
}

Compilation message

gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:66:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   66 |  for (int j=0;j<vec.size();j++){
      |               ~^~~~~~~~~~~
gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:101:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  101 |  for (int i = 1; i < vec.size(); i++){
      |                  ~~^~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 10 ms 4444 KB Output is correct
7 Correct 7 ms 604 KB Output is correct
8 Correct 20 ms 6232 KB Output is correct
9 Correct 6 ms 3676 KB Output is correct
10 Correct 24 ms 6748 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 10 ms 4444 KB Output is correct
7 Correct 11 ms 736 KB Output is correct
8 Correct 20 ms 6236 KB Output is correct
9 Correct 6 ms 3676 KB Output is correct
10 Correct 24 ms 6744 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 2460 KB Output is correct
13 Correct 14 ms 4184 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 34 ms 6832 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 0 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2392 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2560 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 1 ms 2392 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 7 ms 2908 KB Output is correct
12 Correct 10 ms 2908 KB Output is correct
13 Correct 11 ms 3560 KB Output is correct
14 Correct 8 ms 2908 KB Output is correct
15 Correct 17 ms 4436 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct

Subtask #9
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2460 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 0 ms 2392 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 38 ms 6380 KB Output is correct
10 Correct 26 ms 5720 KB Output is correct
11 Correct 11 ms 3676 KB Output is correct
12 Correct 12 ms 4000 KB Output is correct
13 Correct 3 ms 604 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 33 ms 6236 KB Output is correct
10 Correct 26 ms 5692 KB Output is correct
11 Correct 10 ms 3668 KB Output is correct
12 Correct 16 ms 3848 KB Output is correct
13 Correct 4 ms 680 KB Output is correct
14 Correct 42 ms 7508 KB Output is correct
15 Correct 57 ms 8272 KB Output is correct
16 Correct 8 ms 1368 KB Output is correct
17 Correct 31 ms 6332 KB Output is correct
18 Correct 16 ms 2652 KB Output is correct