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Submission #153506

# Submission time Handle Problem Language Result Execution time Memory
153506 2019-09-14T11:30:52 Z dennisstar Gondola (IOI14_gondola) C++11
75 / 100
 24 ms 3320 KB 
#include "gondola.h"
#include <bits/stdc++.h>
using namespace std;
int valid(int n, int inputSeq[])
{
	int i;
	int chk[250010];
	memset(chk, 0, sizeof(chk));
	for (i=0; i<n; i++) chk[inputSeq[i]]++;
	for (i=0; i<n; i++) if (chk[inputSeq[i]]!=1) return 0;
	for (i=0; i<n; i++) if (inputSeq[i]<=n) break;
	if (i>=n) return 1;
	int ar[100010];
	for (int j=0; j<n; j++) ar[(inputSeq[i]-1+j)%n]=inputSeq[(i+j)%n];
	for (i=0; i<n; i++) if (ar[i]<=n&&i+1!=ar[i]) return 0;
	return 1;
}

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

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
	int chk[250010]; int i, j;
	int ar[100010];
	memset(chk, 0, sizeof(chk));
	int mx=0;
	for (i=0; i<n; i++) mx=max(mx, gondolaSeq[i]);
	for (i=0; i<n; i++) if (gondolaSeq[i]<=n) break;
	if (i<n) {
		for (j=0; j<n; j++) ar[(gondolaSeq[i]-1+j)%n]=gondolaSeq[(i+j)%n];
 		for (i=0; i<n; i++) gondolaSeq[i]=ar[i];
	}
	for (i=0; i<n; i++) chk[gondolaSeq[i]]=i+1;
	int fr=0;
	for (i=0; i<n; i++) ar[i]=i+1;
	for (i=n+1; i<=mx; i++) {
		if (chk[i]) {
			replacementSeq[i-n-1]=ar[chk[i]-1];
			ar[chk[i]-1]=i;
		}
		else {
			for (; ar[fr]==gondolaSeq[fr]; fr++) {}
			replacementSeq[i-n-1]=ar[fr];
			ar[fr]=i;
		}
	}
	return mx-n;
}

//----------------------
typedef long long ll;
const ll MAX=1000000009ll;
ll mypow(ll n, int k)
{
	if (n==0) return 1;
	if (k==0) return 1;
	ll ret=mypow(n,k/2);
	if (k%2) return ret*ret*n%MAX;
	else return ret*ret%MAX;
}

int countReplacement(int n, int gondolaSeq[])
{
	int chk[250010]; int i, j;
	

	memset(chk, 0, sizeof(chk));
	for (i=0; i<n; i++) chk[gondolaSeq[i]]++;
	for (i=0; i<n; i++) if (chk[gondolaSeq[i]]!=1) return 0;
	for (i=0; i<n; i++) if (gondolaSeq[i]<=n) break;
	if (i<n) {
		int arr[100010];
		for (j=0; j<n; j++) arr[(gondolaSeq[i]-1+j)%n]=gondolaSeq[(i+j)%n];
		for (i=0; i<n; i++) if (arr[i]<=n&&i+1!=arr[i]) return 0;
	}


	sort(gondolaSeq, gondolaSeq+n);
	long long ret=1, cnt=0;
	for (i=0; i<n; i++) if (gondolaSeq[i]>n) break;
	cnt=n-i;
	ret=mypow(cnt, gondolaSeq[i]-n-1);
	for (i=i+1; i<n; i++) {
		cnt--;
		ret=ret*mypow(cnt, gondolaSeq[i]-gondolaSeq[i-1]-1)%MAX;
	}
	return (int)ret;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1272 KB Output is correct
2 Correct 4 ms 1272 KB Output is correct
3 Correct 3 ms 1272 KB Output is correct
4 Correct 3 ms 1144 KB Output is correct
5 Correct 3 ms 1272 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1272 KB Output is correct
2 Correct 3 ms 1272 KB Output is correct
3 Correct 3 ms 1272 KB Output is correct
4 Correct 3 ms 1272 KB Output is correct
5 Correct 3 ms 1272 KB Output is correct
6 Correct 8 ms 1784 KB Output is correct
7 Correct 15 ms 2168 KB Output is correct
8 Correct 13 ms 2296 KB Output is correct
9 Correct 6 ms 1656 KB Output is correct
10 Correct 14 ms 2424 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1276 KB Output is correct
2 Correct 3 ms 1296 KB Output is correct
3 Correct 3 ms 1272 KB Output is correct
4 Correct 3 ms 1300 KB Output is correct
5 Correct 3 ms 1272 KB Output is correct
6 Correct 9 ms 1912 KB Output is correct
7 Correct 15 ms 2168 KB Output is correct
8 Correct 13 ms 2296 KB Output is correct
9 Correct 6 ms 1528 KB Output is correct
10 Correct 15 ms 2424 KB Output is correct
11 Correct 3 ms 1272 KB Output is correct
12 Correct 3 ms 1272 KB Output is correct
13 Correct 9 ms 1728 KB Output is correct
14 Correct 3 ms 1272 KB Output is correct
15 Correct 17 ms 2424 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1272 KB Output is correct
2 Correct 3 ms 1272 KB Output is correct
3 Correct 3 ms 1272 KB Output is correct
4 Correct 3 ms 1272 KB Output is correct
5 Correct 3 ms 1272 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1272 KB Output is correct
2 Correct 3 ms 1276 KB Output is correct
3 Correct 3 ms 1272 KB Output is correct
4 Correct 3 ms 1272 KB Output is correct
5 Correct 3 ms 1272 KB Output is correct
6 Correct 4 ms 1272 KB Output is correct
7 Correct 3 ms 1400 KB Output is correct
8 Correct 3 ms 1400 KB Output is correct
9 Correct 3 ms 1272 KB Output is correct
10 Correct 4 ms 1400 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1272 KB Output is correct
2 Correct 3 ms 1276 KB Output is correct
3 Correct 3 ms 1272 KB Output is correct
4 Correct 3 ms 1272 KB Output is correct
5 Correct 3 ms 1268 KB Output is correct
6 Correct 3 ms 1272 KB Output is correct
7 Correct 3 ms 1272 KB Output is correct
8 Correct 3 ms 1400 KB Output is correct
9 Correct 4 ms 1400 KB Output is correct
10 Correct 4 ms 1400 KB Output is correct
11 Correct 14 ms 2344 KB Output is correct
12 Correct 17 ms 2552 KB Output is correct
13 Correct 16 ms 2552 KB Output is correct
14 Correct 14 ms 2296 KB Output is correct
15 Correct 24 ms 3320 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1272 KB Output is correct
2 Correct 3 ms 1272 KB Output is correct
3 Correct 3 ms 1272 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1272 KB Output is correct
2 Correct 3 ms 1272 KB Output is correct
3 Correct 3 ms 1272 KB Output is correct
4 Correct 3 ms 1272 KB Output is correct
5 Correct 3 ms 1272 KB Output is correct
6 Correct 3 ms 1276 KB Output is correct
7 Correct 3 ms 1272 KB Output is correct
8 Correct 3 ms 1272 KB Output is correct

Subtask #9
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1272 KB Output is correct
2 Correct 3 ms 1272 KB Output is correct
3 Correct 3 ms 1272 KB Output is correct
4 Correct 3 ms 1272 KB Output is correct
5 Correct 3 ms 1272 KB Output is correct
6 Correct 3 ms 1272 KB Output is correct
7 Correct 3 ms 1272 KB Output is correct
8 Correct 3 ms 1348 KB Output is correct
9 Incorrect 22 ms 2424 KB Integer -667809712 violates the range [0, 1000000008]
10 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1276 KB Output is correct
2 Correct 3 ms 1272 KB Output is correct
3 Correct 3 ms 1276 KB Output is correct
4 Correct 3 ms 1272 KB Output is correct
5 Correct 4 ms 1272 KB Output is correct
6 Correct 3 ms 1272 KB Output is correct
7 Correct 3 ms 1272 KB Output is correct
8 Correct 3 ms 1272 KB Output is correct
9 Incorrect 23 ms 2440 KB Integer -667809712 violates the range [0, 1000000008]
10 Halted 0 ms 0 KB -