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Submission #896793

# Submission time Handle Problem Language Result Execution time Memory
896793 2024-01-02T07:17:19 Z LCJLY Gondola (IOI14_gondola) C++14
60 / 100
 19 ms 5576 KB 
#include "gondola.h"
#include <bits/stdc++.h>
using namespace std;

int valid(int n, int arr[]){
	unordered_set<int>se;
	bool amos=true;
	deque<int>d;
	int mini=INT_MAX;
	int small=0;
	int big=0;
	for(int x=0;x<n;x++){
		if(se.find(arr[x])!=se.end()) amos=false;
		se.insert(arr[x]);
		if(arr[x]<=n){
			d.push_back(arr[x]);
			mini=min(mini,arr[x]);
			small++;
		}	
		else big++;
	}
	
	int ptr=1;
	for(int x=1;x<=n;x++){
		if(se.find(x)==se.end()){
			if(se.find(ptr+n)==se.end()) amos=false;
			ptr++;
		}
	}
	//if(n-small!=big) amos=false;
	
	if(!d.empty()){
		while(d.front()!=mini){
			d.push_front(d.back());
			d.pop_back();
		}
		
		for(int x=1;x<(int)d.size();x++){
			if(d[x]<d[x-1]) amos=false;
		}
	}
	
	return amos;
}

int replacement(int n, int arr[], int ans[]){
	int maxi=0;
	int shift=-1;
	deque<int>d;
	for(int x=0;x<n;x++){
		maxi=max(maxi,arr[x]);
		if(arr[x]<=n){
			if(arr[x]>=x+1){
				shift=arr[x]-(x+1);
			}
			else{
				shift=arr[x]+n-(x+1);
			}
		}
		d.push_back(arr[x]);
	}
	
	while(shift>0){
		shift--;
		d.push_front(d.back());
		d.pop_back();
	}
	
	vector<pair<int,int>>v;
	for(int x=0;x<n;x++){
		if(d[x]>n){
			v.push_back({d[x],x});
		}
	}
	
	sort(v.begin(),v.end());
	
	int index=0;
	int cur=n;
	for(auto it:v){
		bool done=true;
		while(cur<it.first){
			if(done){
				ans[index]=it.second+1;
				done=false;
				index++;
			}
			else{
				ans[index]=cur;
				index++;
			}
			cur++;
		}
	}
	
	return maxi-n;
}

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

int mod=1e9+7;

int f(int a, int b){
	if(a==1||b==0) return 1;
	if(b==1) return a;
	int hold=f((a*a)%mod,b/2);
	if(b%2) hold=(hold*a)%mod;
	return hold;
}

int countReplacement(int n, int arr[]){
	int arr2[n];
	for(int x=0;x<n;x++) arr2[x]=arr[x];
	//if(valid(n,arr2)==0) return 0;
	int maxi=0;
	vector<int>v;
	for(int x=0;x<n;x++){
		maxi=max(maxi,arr[x]);
		if(arr[x]>n)v.push_back(arr[x]);
	}
	if(maxi==n) return 1;
	int cur=n;
	int counter=1;
	sort(v.begin(),v.end());
	int sz=v.size();
	//show(sz,sz);
	for(auto it:v){
		int gap=max(0,it-cur-1);
		//show3(gap,gap,it,it,cur,cur);
		counter=(counter*f(sz,gap))%mod;
		cur=it;
		sz--;
	}
	//show(check,1);
	return counter;
}
//

Compilation message

gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:112:6: warning: variable 'arr2' set but not used [-Wunused-but-set-variable]
  112 |  int arr2[n];
      |      ^~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 7 ms 2240 KB Output is correct
7 Correct 16 ms 3692 KB Output is correct
8 Correct 11 ms 3692 KB Output is correct
9 Correct 4 ms 1628 KB Output is correct
10 Correct 13 ms 4456 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 2228 KB Output is correct
7 Correct 19 ms 3792 KB Output is correct
8 Correct 14 ms 3688 KB Output is correct
9 Correct 4 ms 1628 KB Output is correct
10 Correct 13 ms 4352 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 9 ms 1836 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 18 ms 5576 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 7 ms 860 KB Output is correct
12 Correct 9 ms 1112 KB Output is correct
13 Correct 12 ms 1516 KB Output is correct
14 Correct 7 ms 856 KB Output is correct
15 Correct 17 ms 2396 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 448 KB Output is correct
3 Correct 1 ms 348 KB Output is correct

Subtask #8
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Incorrect 1 ms 348 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #9
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Incorrect 1 ms 448 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Incorrect 0 ms 348 KB Output isn't correct
8 Halted 0 ms 0 KB -