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Submission #160689

# Submission time Handle Problem Language Result Execution time Memory
160689 2019-10-29T10:36:49 Z GioChkhaidze Gondola (IOI14_gondola) C++14
100 / 100
 52 ms 2424 KB 
#include <bits/stdc++.h>
#include "gondola.h"
#define F first
#define S second
using namespace std;
bool f[1000006],F[1000006];
int Gondol[250003],b[250003];
pair < int , int > a[250003];
long long mod=1e9+9;
int valid(int n, int inputSeq[]) {
	int idx=-1;
	for (int i=0; i<n; i++)  
		b[i]=inputSeq[i];
	sort(b,b+n);
	for (int i=1; i<n; i++)
		if (b[i]==b[i-1]) 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;
}

long long int po(long long a,long long b) {
	long long int res=1;
	while (b>0) { if (b%2) res=(res*a)%mod; a=(a*a)%mod; b/=2; }
	return res;
}

int countReplacement(int n, int inputSeq[]) {
	if (!valid(n,inputSeq)) return 0;
	sort(inputSeq,inputSeq+n);
	long long int ANS=1,last=n;
	if (inputSeq[0]>n) ANS=(ANS*n)%mod;
	for (int i=0; i<n; i++) {
		if (inputSeq[i]<=n) continue;
		ANS=(ANS*po(n-i,inputSeq[i]-last-1))%mod;
		last=inputSeq[i];
	}
   return ANS;
}

Compilation message

gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:36:10: 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 376 KB Output is correct
5 Correct 5 ms 256 KB Output is correct
6 Correct 10 ms 632 KB Output is correct
7 Correct 33 ms 988 KB Output is correct
8 Correct 14 ms 888 KB Output is correct
9 Correct 7 ms 552 KB Output is correct
10 Correct 19 ms 988 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 256 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 10 ms 636 KB Output is correct
7 Correct 20 ms 1144 KB Output is correct
8 Correct 14 ms 888 KB Output is correct
9 Correct 7 ms 548 KB Output is correct
10 Correct 19 ms 1020 KB Output is correct
11 Correct 11 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 11 ms 632 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 21 ms 1044 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 2 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 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 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 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 2 ms 376 KB Output is correct
10 Correct 2 ms 380 KB Output is correct
11 Correct 15 ms 1568 KB Output is correct
12 Correct 17 ms 1784 KB Output is correct
13 Correct 16 ms 1528 KB Output is correct
14 Correct 14 ms 1528 KB Output is correct
15 Correct 23 ms 2424 KB Output is correct

Subtask #7
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

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 380 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 504 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

Subtask #9
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 380 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 27 ms 884 KB Output is correct
10 Correct 21 ms 760 KB Output is correct
11 Correct 10 ms 508 KB Output is correct
12 Correct 11 ms 504 KB Output is correct
13 Correct 4 ms 376 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 11 ms 256 KB Output is correct
5 Correct 2 ms 348 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 52 ms 888 KB Output is correct
10 Correct 23 ms 844 KB Output is correct
11 Correct 10 ms 504 KB Output is correct
12 Correct 11 ms 504 KB Output is correct
13 Correct 4 ms 376 KB Output is correct
14 Correct 34 ms 1016 KB Output is correct
15 Correct 39 ms 2040 KB Output is correct
16 Correct 9 ms 632 KB Output is correct
17 Correct 26 ms 1400 KB Output is correct
18 Correct 16 ms 1016 KB Output is correct