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Submission #129494

# Submission time Handle Problem Language Result Execution time Memory
129494 2019-07-12T09:53:02 Z antimirage Gondola (IOI14_gondola) C++14
100 / 100
 32 ms 6136 KB 
#include "gondola.h"
//#include "grader.cpp"
#include <bits/stdc++.h>


using namespace std;
 
const int N = 1e6 + 5;
 
int b[N], ind[N], mx, sz, cnt[N], mod = 1e9 + 9;
 
int valid(int n, int a[]) {
	int pos = -1;
	
	for (int i = 0; i < n; i++) {
		if (a[i] <= n) {
			pos = i;
		}
		cnt[a[i]]++;
		
		if (cnt[a[i]] > 1)
			return 0;
	}
	if (pos == -1) {
		return 1;
	} else {
		assert(a[pos] <= n);
		int cn = a[pos];
		for (int i = (pos + 1) % n; i != pos; i = (i + 1) % n) {
			cn++;
			if (cn > n)
				cn -= n;
			if (a[i] > n) {
				continue;
			}
			if (a[i] != cn) {
				return 0;
			}
		}
	}
	return 1;
}
int replacement(int n, int a[], int ans[]) {
	memset(ind, -1, sizeof(ind));
	int pos = -1;
	
	for (int i = 0; i < n; i++) {
		if (a[i] <= n) {
			pos = i;
		}
		if (a[i] > a[mx]) {
			mx = i;
		}
		ind[a[i]] = i;
	}
	if (pos == -1) {
		for (int i = 0; i < n; i++) {
			b[i] = i + 1;
		}
	}
	else {
		int cn = a[pos];
		b[pos] = a[pos];
		for (int i = (pos + 1) % n; i != pos; i = (i + 1) % n) {
			cn++;
			if (cn > n)
				cn -= n;
			b[i] = cn;
		}
	}
	for (int i = n + 1; i <= a[mx]; i++) {
		if (ind[i] == -1) {
			ans[sz++] = b[mx];
			b[mx] = i;
		}
		else {
			ans[sz++] = b[ind[i]];
			b[ind[i]] = i;
		}
	}
	return sz;
}
long long binpow (long long a, int b) {
	if (b == 0)
		return 1;
	if (b & 1)
		return a * 1ll * binpow(a, b - 1) % mod;
		
	long long asd = binpow(a, b >> 1);
	return asd * 1ll * asd % mod;
}
int countReplacement(int n, int a[]) {
		
	int pos = -1;
	
	long long res = 1;
	
	for (int i = 0; i < n; i++) {
		if (a[i] <= n) {
			pos = i;
		}
	}
	if (pos == -1) {
		res = n;
	} else {
		int cn = a[pos];
		for (int i = (pos + 1) % n; i != pos; i = (i + 1) % n) {
			cn++;
			if (cn > n)
				cn -= n;
			if (a[i] > n) {
				continue;
			}
			if (a[i] != cn) {
				return 0;
			}
		}
	}
	sort(a, a + n);
	
	for (int i = 0; i < n; i++) {
		if (a[i] <= n) continue;
		if (i > 0 && a[i] == a[i - 1])
			return 0;
		res *= binpow((n - i) * 1ll, ( (i == 0 || a[i - 1] <= n) ? a[i] - n - 1 : a[i] - a[i - 1] - 1) );
		res %= mod;
	}
	return res;
}

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 256 KB Output is correct
4 Correct 2 ms 376 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 376 KB Output is correct
2 Correct 2 ms 376 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 376 KB Output is correct
6 Correct 7 ms 632 KB Output is correct
7 Correct 13 ms 1016 KB Output is correct
8 Correct 12 ms 888 KB Output is correct
9 Correct 5 ms 504 KB Output is correct
10 Correct 13 ms 1016 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 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 7 ms 632 KB Output is correct
7 Correct 14 ms 1016 KB Output is correct
8 Correct 12 ms 888 KB Output is correct
9 Correct 5 ms 504 KB Output is correct
10 Correct 13 ms 1016 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 8 ms 1272 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 17 ms 1144 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 4216 KB Output is correct
2 Correct 8 ms 4216 KB Output is correct
3 Correct 5 ms 4344 KB Output is correct
4 Correct 5 ms 4216 KB Output is correct
5 Correct 5 ms 4216 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4216 KB Output is correct
2 Correct 5 ms 4216 KB Output is correct
3 Correct 5 ms 4216 KB Output is correct
4 Correct 5 ms 4216 KB Output is correct
5 Correct 5 ms 4220 KB Output is correct
6 Correct 5 ms 4216 KB Output is correct
7 Correct 5 ms 4216 KB Output is correct
8 Correct 6 ms 4344 KB Output is correct
9 Correct 6 ms 4348 KB Output is correct
10 Correct 6 ms 4344 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4216 KB Output is correct
2 Correct 5 ms 4216 KB Output is correct
3 Correct 5 ms 4264 KB Output is correct
4 Correct 5 ms 4216 KB Output is correct
5 Correct 5 ms 4216 KB Output is correct
6 Correct 5 ms 4216 KB Output is correct
7 Correct 5 ms 4216 KB Output is correct
8 Correct 6 ms 4344 KB Output is correct
9 Correct 6 ms 4216 KB Output is correct
10 Correct 7 ms 4472 KB Output is correct
11 Correct 16 ms 4856 KB Output is correct
12 Correct 17 ms 4984 KB Output is correct
13 Correct 18 ms 5240 KB Output is correct
14 Correct 16 ms 4856 KB Output is correct
15 Correct 26 ms 6136 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 252 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 296 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 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 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 256 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 252 KB Output is correct
6 Correct 2 ms 252 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 21 ms 632 KB Output is correct
10 Correct 18 ms 1016 KB Output is correct
11 Correct 8 ms 504 KB Output is correct
12 Correct 10 ms 632 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 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 256 KB Output is correct
9 Correct 21 ms 632 KB Output is correct
10 Correct 17 ms 888 KB Output is correct
11 Correct 8 ms 632 KB Output is correct
12 Correct 10 ms 632 KB Output is correct
13 Correct 4 ms 372 KB Output is correct
14 Correct 27 ms 1516 KB Output is correct
15 Correct 32 ms 1656 KB Output is correct
16 Correct 7 ms 504 KB Output is correct
17 Correct 21 ms 1144 KB Output is correct
18 Correct 13 ms 888 KB Output is correct