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Submission #101895

# Submission time Handle Problem Language Result Execution time Memory
101895 2019-03-20T21:51:07 Z eriksuenderhauf Gondola (IOI14_gondola) C++11
100 / 100
 24 ms 2688 KB 
//#pragma GCC optimize("O3")
#include <bits/stdc++.h>
#include "gondola.h"
//#include "grader.h"
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define enl printf("\n")
#define case(t) printf("Case #%d: ", (t))
#define ni(n) scanf("%d", &(n))
#define nl(n) scanf("%I64d", &(n))
#define nai(a, n) for (int i = 0; i < (n); i++) ni(a[i])
#define nal(a, n) for (int i = 0; i < (n); i++) nl(a[i])
#define pri(n) printf("%d\n", (n))
#define prl(n) printf("%I64d\n", (n))
#define pii pair<int, int>
#define pll pair<long long, long long>
#define vii vector<pii>
#define vi vector<int>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
using namespace std;
using namespace __gnu_pbds;
typedef long long ll;
typedef cc_hash_table<int,int,hash<int>> ht;
const double pi = acos(-1);
const int MOD = 1e9 + 9;
const int INF = 1e9 + 7;
const int MAXN = 3e5 + 5;
const double eps = 1e-9;
int arr[MAXN], nx[MAXN];

int valid(int n, int inputSeq[]) {
	int ind = n;
	for (int i = 0; i < n; i++)
		if (inputSeq[i] <= n) {
			ind = i;
			break;
		}
	if (ind < n)
		for (int j = 0; j < n; j++)
			if (inputSeq[j] <= n && (inputSeq[ind] + j) % n != (inputSeq[j] + ind) % n)
				return 0;
	
	sort(inputSeq, inputSeq + n);
	for (int i = 1; i < n; i++)
		if (inputSeq[i] == inputSeq[i - 1])
			return 0;
	return 1;
}

int replacement(int n, int gondolaSeq[], int replacementSeq[]) {
	int ind = n;
	for (int i = 0; i < n; i++)
		arr[gondolaSeq[i]] = i + 1;
	for (int i = 0; i < n; i++)
		if (gondolaSeq[i] <= n) {
			ind = i;
			break;
		}
	for (int i = 0; i < n; i++)
		if (ind == n)
			nx[i] = i + 1;
		else
			nx[i] = (gondolaSeq[ind] + i - ind + n - 1) % n + 1;
	int mx = 0;
	for (int i = 0; i < n; i++)
		mx = max(mx, gondolaSeq[i]);
	for (int i = n + 1; i <= mx; i++) {
		if (arr[i] != 0) {
			replacementSeq[i - n - 1] = nx[arr[i] - 1];
			nx[arr[i] - 1] = i;
		} else {
			replacementSeq[i - n - 1] = nx[arr[mx] - 1];
			nx[arr[mx] - 1] = i;
		}
	}
	return mx - n;
}

int pw(ll a, int b) {
	ll ret = 1;
	while (b > 0)
		if (b & 1)
			ret = (ret * a) % MOD, b--;
		else
			a = (a * a) % MOD, b /= 2;
	return (int) ret;
}

int countReplacement(int n, int inputSeq[]) {
	if (!valid(n, inputSeq))
		return 0;
	sort(inputSeq, inputSeq + n);
	ll ret = 1;
	for (int i = 0; i < n; i++) {
		if (inputSeq[i] <= n)
			continue;
		int ex = n;
		if (i > 0)
			ex = max(ex, inputSeq[i - 1]);
		ll val = pw(n - i, inputSeq[i] - ex - 1);
		ret = (ret * val) % MOD;
	}
	if (inputSeq[0] > n)
		ret = (ret * n) % MOD;
	return (int) ret;
}

Subtask #1
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 2 ms 256 KB Output is correct
4 Correct 3 ms 384 KB Output is correct
5 Correct 2 ms 256 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 2 ms 256 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 9 ms 512 KB Output is correct
7 Correct 12 ms 640 KB Output is correct
8 Correct 13 ms 640 KB Output is correct
9 Correct 6 ms 384 KB Output is correct
10 Correct 17 ms 612 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 256 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 10 ms 512 KB Output is correct
7 Correct 13 ms 640 KB Output is correct
8 Correct 13 ms 652 KB Output is correct
9 Correct 6 ms 384 KB Output is correct
10 Correct 20 ms 640 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 7 ms 484 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 12 ms 640 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 3 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct

Subtask #6
20.0 / 20.0

# 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 3 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 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
11 Correct 13 ms 1408 KB Output is correct
12 Correct 13 ms 1408 KB Output is correct
13 Correct 15 ms 1792 KB Output is correct
14 Correct 12 ms 1280 KB Output is correct
15 Correct 21 ms 2688 KB Output is correct

Subtask #7
5.0 / 5.0

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

Subtask #8
15.0 / 15.0

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

Subtask #9
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 17 ms 640 KB Output is correct
10 Correct 14 ms 640 KB Output is correct
11 Correct 6 ms 384 KB Output is correct
12 Correct 8 ms 384 KB Output is correct
13 Correct 4 ms 384 KB Output is correct

Subtask #10
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 256 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 21 ms 768 KB Output is correct
10 Correct 15 ms 640 KB Output is correct
11 Correct 8 ms 384 KB Output is correct
12 Correct 8 ms 512 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 23 ms 1536 KB Output is correct
15 Correct 24 ms 1784 KB Output is correct
16 Correct 7 ms 640 KB Output is correct
17 Correct 19 ms 1280 KB Output is correct
18 Correct 12 ms 768 KB Output is correct