oj.uz

Submission #129486

# Submission time Handle Problem Language Result Execution time Memory
129486 2019-07-12T09:47:15 Z antimirage Gondola (IOI14_gondola) C++14
75 / 100
 31 ms 6264 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[]) {

	if (valid(n, a) == 0)
		return 0;
		
	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;
	}
	sort(a, a + n);
	
	for (int i = 0; i < n; i++) {
		if (a[i] <= n) continue;
		res *= binpow((n - i) * 1ll, (i == 0 ? 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 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 348 KB Output is correct
5 Correct 2 ms 376 KB Output is correct

Subtask #2
5.0 / 5.0

# 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 348 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 7 ms 888 KB Output is correct
7 Correct 14 ms 1528 KB Output is correct
8 Correct 12 ms 1272 KB Output is correct
9 Correct 5 ms 632 KB Output is correct
10 Correct 13 ms 1400 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 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 256 KB Output is correct
6 Correct 7 ms 888 KB Output is correct
7 Correct 14 ms 1528 KB Output is correct
8 Correct 12 ms 1260 KB Output is correct
9 Correct 5 ms 632 KB Output is correct
10 Correct 14 ms 1528 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 380 KB Output is correct
13 Correct 8 ms 1528 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 14 ms 1528 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 7 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 4216 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4220 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 4216 KB Output is correct
6 Correct 5 ms 4216 KB Output is correct
7 Correct 5 ms 4344 KB Output is correct
8 Correct 6 ms 4344 KB Output is correct
9 Correct 7 ms 4216 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 6 ms 4216 KB Output is correct
4 Correct 6 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 6 ms 4344 KB Output is correct
8 Correct 6 ms 4344 KB Output is correct
9 Correct 6 ms 4216 KB Output is correct
10 Correct 13 ms 4344 KB Output is correct
11 Correct 20 ms 5240 KB Output is correct
12 Correct 17 ms 5496 KB Output is correct
13 Correct 18 ms 5368 KB Output is correct
14 Correct 16 ms 5240 KB Output is correct
15 Correct 31 ms 6264 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 252 KB Output is correct
3 Correct 3 ms 376 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 3 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 2 ms 256 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 376 KB Output is correct

Subtask #9
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 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 504 KB Output is correct
9 Incorrect 22 ms 1916 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# 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
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Incorrect 22 ms 1784 KB Output isn't correct
10 Halted 0 ms 0 KB -