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Submission #160678

# Submission time Handle Problem Language Result Execution time Memory
160678 2019-10-29T10:10:36 Z GioChkhaidze Gondola (IOI14_gondola) C++14
60 / 100
 23 ms 2300 KB 
#include <bits/stdc++.h>
#include "gondola.h"

#define F first
#define S second

using namespace std;

bool f[250003],F[250003];
int Gondol[250003];
pair < int , int > a[250003];

int valid(int n, int inputSeq[])
{
	int idx=-1;
	for (int i=0; i<n; i++) 
		if (!f[inputSeq[i]]) f[inputSeq[i]]=1;
			else return 0;
	
	for (int i=0; i<n; i++) 
		if (inputSeq[i]<=n) { idx=i; break; }
	
	if (idx==-1) return 1;
	
	int x=inputSeq[idx];
	for (int i=idx+1; ; i++) {
		x++;
		if (x>n) x-=n;
		if (i==n) i-=n;
		if (i==idx) break;
		if (inputSeq[i]<=n && inputSeq[i]!=x) return 0;
	}
		
  return 1;
}

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

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
	int l=0,M=0,idx=-1;
	for (int i=0; i<n; i++) 
		if (gondolaSeq[i]<=n) { idx=i; break; }
	
	for (int i=0; i<n; i++) 
		a[i].F=gondolaSeq[i],a[i].S=i;
	
	sort(a,a+n);
	
	if (idx==-1) { 
		for (int i=0; i<n; i++) 
			Gondol[i]=i+1;
	}
		else {
		int x=gondolaSeq[idx];
		Gondol[idx]=x;
		for (int i=idx+1; ; i++) {
			x++;
			if (x>n) x-=n;
			if (i==n) i-=n;
			if (i==idx) break;
			Gondol[i]=x;	
		}
	}
	
	int last=n;
	for (int i=0; i<n; i++) {
		if (a[i].F<=n) continue;
		int id=a[i].S;
		replacementSeq[l++]=Gondol[id];
		for (int j=last+1; j<a[i].F; j++) 
			replacementSeq[l++]=j;
		last=a[i].F;
	}
	return l;
}

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

int countReplacement(int n, int inputSeq[])
{
	if (!valid(n,inputSeq)) return 0;
	int k=0;
	
	for (int i=0; i<n; i++)
		if (inputSeq[i]>n) k++;
		
	if (k<=1) return 1;
	
	int idx=-1;
	for (int i=0; i<n; i++) 
		if (inputSeq[i]<=n) { idx=i; break; }
	
	sort(inputSeq,inputSeq+n);

	long long mod=1e9+9,ANS=1,last=n;
	for (int i=0; i<n; i++) {
		if (inputSeq[i]<=n) continue;
		ANS=(1LL*ANS*(inputSeq[i]-last))%mod;
		last=inputSeq[i];
	}
	
	if (idx==-1) ANS=(ANS*n)%mod;

   return ANS;
}

Compilation message

gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:41:10: warning: unused variable 'M' [-Wunused-variable]
  int l=0,M=0,idx=-1;
          ^

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 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

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 376 KB Output is correct
4 Correct 2 ms 380 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 6 ms 504 KB Output is correct
7 Correct 13 ms 760 KB Output is correct
8 Correct 11 ms 760 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 13 ms 760 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 380 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 6 ms 504 KB Output is correct
7 Correct 13 ms 760 KB Output is correct
8 Correct 11 ms 632 KB Output is correct
9 Correct 5 ms 508 KB Output is correct
10 Correct 12 ms 760 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 380 KB Output is correct
13 Correct 7 ms 632 KB Output is correct
14 Correct 2 ms 380 KB Output is correct
15 Correct 15 ms 760 KB Output is correct

Subtask #4
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 376 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct

Subtask #5
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 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 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct

Subtask #6
20.0 / 20.0

# 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 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 2 ms 376 KB Output is correct
10 Correct 3 ms 376 KB Output is correct
11 Correct 14 ms 1528 KB Output is correct
12 Correct 17 ms 1784 KB Output is correct
13 Correct 17 ms 1656 KB Output is correct
14 Correct 14 ms 1528 KB Output is correct
15 Correct 23 ms 2300 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 380 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct

Subtask #8
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 Incorrect 2 ms 376 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #9
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 Incorrect 2 ms 376 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# 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 Incorrect 2 ms 348 KB Output isn't correct
6 Halted 0 ms 0 KB -