oj.uz

Submission #99702

# Submission time Handle Problem Language Result Execution time Memory
99702 2019-03-06T07:23:44 Z Retro3014 Gondola (IOI14_gondola) C++17
55 / 100
 1000 ms 4856 KB 
#include "gondola.h"
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

const int MAX_X = 250000;

set<int> st;

int valid(int n, int inputSeq[]){
	int s = -1;
	for(int i=0; i<n; i++){
		if(st.find(inputSeq[i])!=st.end())	return false;
		st.insert(inputSeq[i]);
	}
	for(int i=0; i<n; i++){
		if(inputSeq[i]<=n){
			s = i; break;
		}
	}
	if(s==-1)	return 1;
	int idx = s, now = inputSeq[idx];
	bool tf = true;
	while(1){
		if(inputSeq[idx]<=n && inputSeq[idx]!=now){
			tf = false;
			break;
		}
		if(idx==(s+n-2)%n+1)	break;
		now = now%n+1; idx = (idx+1)%n;
	}
	if(tf)	return 1;
	tf = true;
	idx = s; now = inputSeq[idx];
	while(1){
		if(inputSeq[idx]<=n &&inputSeq[idx]!=now){
			tf = false;
			break;
		}
		if(idx==s%n+1)	break;
		idx = (idx+n-1)%n; now = (now+n-2)%n+1;
	}
	if(tf)	return 1;
	return 0;
}

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

int loc[MAX_X+1];
int num[MAX_X+1];

int replacement(int n, int gondolaSeq[], int replacementSeq[]){
	int mx = 0;
	for(int i=0; i<n; i++) mx = max(mx, gondolaSeq[i]);
	for(int i=1; i<=mx; i++)	loc[i] = -1;
	for(int i=0; i<n; i++)	loc[gondolaSeq[i]] = i;
	int s = -1;
	for(int i=0; i<n; i++){
		if(gondolaSeq[i]<=n){
			s = i; break;
		}
	}
	if(s==-1){
		for(int i=0; i<n; i++){
			num[i] = i+1;
		}
	}
	else{
		bool tf = true;
		int idx = s, now = gondolaSeq[idx];
		while(1){
			if(gondolaSeq[idx]<=n && gondolaSeq[idx]!=now){
				tf = false; break;
			}
			idx = idx%n+1; now = now%n+1;
			if(idx==s)	break;
		}
		if(tf){
			idx = s; now = gondolaSeq[idx];
			while(1){
				num[idx] = now;
				idx = (idx+1)%n; now = now%n+1;
				if(idx==s)	break;
			}
		}else{
			idx = s; now = gondolaSeq[idx];
			while(1){
				num[idx] = now;
				idx = (idx+n-1)%n; now = (now+n-2)%n+1;
				if(idx==s)	break;
			}
		}
	}
	int idx = 0;
	int cnt = 0;
	for(int i=n+1; i<=mx; i++){
		if(loc[i]!=-1){
			replacementSeq[cnt++] = num[loc[i]];
			num[loc[i]] = i;
		}else{
			while(gondolaSeq[idx]==num[idx])	idx++;
			replacementSeq[cnt++] = num[idx];
			num[idx] = i;
		}
	}
	return cnt;
}

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

const ll DIV = 1000000009;

ll multi(ll x, ll y){
	if(y==1)	return x%DIV;
	if(y==0)	return 1;
	ll m = multi(x, y/2);
	if(y%2==1)	return (((m*m)%DIV)*x)%DIV;
	return ((m*m)%DIV);
}



vector<int> v;

int countReplacement(int n, int inputSeq[]){
	if(!valid(n, inputSeq))	return 0;
	int mx = 0;
	for(int i=0; i<n; i++) mx = max(mx, inputSeq[i]);
	for(int i=0; i<n; i++){
		v.push_back(inputSeq[i]);
	}sort(v.begin(), v.end());
	ll ans = 1;
	int prv = n+1;
	ll t = n;
	for(int i=0; i<v.size(); i++){
		if(v[i]<=n)	{
			t--;
			continue;
		}
		ans = (ans * multi(t, v[i]-prv))%DIV;
		t--;
		prv = v[i]+1;
	}
	return ans;
}

Compilation message

gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:137:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<v.size(); i++){
               ~^~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 2 ms 384 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 3 ms 412 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 19 ms 2472 KB Output is correct
7 Correct 15 ms 1024 KB Output is correct
8 Correct 32 ms 4192 KB Output is correct
9 Correct 10 ms 1536 KB Output is correct
10 Correct 42 ms 4728 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 3 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 21 ms 2432 KB Output is correct
7 Correct 12 ms 952 KB Output is correct
8 Correct 43 ms 4088 KB Output is correct
9 Correct 13 ms 1664 KB Output is correct
10 Correct 45 ms 4856 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 23 ms 2304 KB Output is correct
14 Correct 2 ms 384 KB Output is correct
15 Correct 64 ms 4856 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 3 ms 384 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 3 ms 384 KB Output is correct
7 Correct 3 ms 512 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 16 ms 1528 KB Output is correct
12 Correct 15 ms 1636 KB Output is correct
13 Correct 19 ms 1920 KB Output is correct
14 Correct 19 ms 1480 KB Output is correct
15 Correct 28 ms 3064 KB Output is correct

Subtask #7
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Execution timed out 1067 ms 256 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #8
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Execution timed out 1068 ms 384 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #9
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Execution timed out 1050 ms 384 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Execution timed out 1053 ms 384 KB Time limit exceeded
3 Halted 0 ms 0 KB -