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Submission #1032087

# Submission time Handle Problem Language Result Execution time Memory
1032087 2024-07-23T11:04:25 Z tolbi Gondola (IOI14_gondola) C++17
60 / 100
 31 ms 4660 KB 
#include "gondola.h"
#include <bits/stdc++.h>
using namespace std;
int valid(int n, int inputSeq[])
{
	map<int,int> mp;
	int p = -1;
	for (int i = 0; i < n; ++i)
	{
		if (mp[inputSeq[i]]) return 0;
		mp[inputSeq[i]]++;
	}
	for (int i = 0; i < n; i++){
		if (inputSeq[i]<=n){
			p=i;
			break;
		}
	}
	if (p==-1) return 1;
	for (int i = 0; i < n; i++){
		if (inputSeq[i]>n) continue;
		int step = i-p;
		if (i<p) step = n-p+i;
		int a = inputSeq[p]-1;
		a+=step;
		a%=n;
		a++;
		if (inputSeq[i]!=a) return 0;
	}
	return 1;
}

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

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
	pair<int,int> v[n];
	for (int i = 0; i < n; ++i)
	{
		v[i]={gondolaSeq[i],i};
	}
	sort(v,v+n);
	int cnt = 0;
	int p = 0;
	for (int i = 0; i < n; i++){
		if (gondolaSeq[i]<=n){
			p=i-gondolaSeq[i]+1;
			if (p<0) p+=n;
			break;
		}
	}
	for (int i = 0; i < n; i++){
		if (v[i].first<=n) continue;
		int lel = v[i].second-p+1;
		if (v[i].second<p) lel = n-p+v[i].second+1;
		while (cnt<v[i].first-n) {
			replacementSeq[cnt]=lel;
			lel=cnt+n+1;
			cnt++;
		}
	}
	return cnt;
}

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

constexpr int MOD = 1e9+7;
int fpow(int base, int pow){
	int rval = 1;
	while (pow){
		if (pow&1){
			rval=(1LL*rval*base)%MOD;
		}
		base=(1LL*base*base)%MOD;
		pow>>=1;
	}
	return rval;
}
int countReplacement(int n, int inputSeq[])
{
	if (!valid(n,inputSeq)) return 0;
	pair<int,int> v[n];
	int kapali = 0;
	int ans = 1;
	for (int i = 0; i < n; ++i)
	{
		if (inputSeq[i]>n) {
			kapali++;
			ans=(1LL*ans*kapali)%MOD;
		}
		v[i]={inputSeq[i],i};
	}
	if (kapali!=n) ans=1;
	sort(v,v+n);
	int cnt = 0;
	for (int i = 0; i < n; i++){
		if (v[i].first<=n) continue;
		int kal = n-i;
		ans=(1LL*ans*fpow(kal,max(0,v[i].first-n-cnt-1)))%MOD;
		cnt=v[i].first-n;
		while (cnt<v[i].first-n) {
			cnt++;
			if (cnt!=v[i].first-n) ans=(1LL*ans*kal)%MOD;
		}
	}
	return ans;
}

Subtask #1
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 #2
5.0 / 5.0

# 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 9 ms 2392 KB Output is correct
7 Correct 6 ms 604 KB Output is correct
8 Correct 18 ms 3896 KB Output is correct
9 Correct 5 ms 1372 KB Output is correct
10 Correct 22 ms 4444 KB Output is correct

Subtask #3
10.0 / 10.0

# 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 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 420 KB Output is correct
6 Correct 10 ms 2116 KB Output is correct
7 Correct 5 ms 604 KB Output is correct
8 Correct 17 ms 3932 KB Output is correct
9 Correct 6 ms 1372 KB Output is correct
10 Correct 23 ms 4524 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 13 ms 2140 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 31 ms 4660 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 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

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 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct

Subtask #6
20.0 / 20.0

# 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 344 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 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 7 ms 1116 KB Output is correct
12 Correct 8 ms 1324 KB Output is correct
13 Correct 10 ms 1372 KB Output is correct
14 Correct 11 ms 1116 KB Output is correct
15 Correct 12 ms 2200 KB Output is correct

Subtask #7
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

Subtask #8
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 344 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 -

Subtask #9
0 / 15.0

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