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Submission #129472

# Submission time Handle Problem Language Result Execution time Memory
129472 2019-07-12T09:37:20 Z antimirage Gondola (IOI14_gondola) C++14
90 / 100
 27 ms 9848 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;
}
 
int countReplacement(int n, int a[]) {
	memset(ind, -1, sizeof(ind));
	if (valid(n, a) == 0)
		return 0;
		
	int pos = -1;
	
	long long res = 1, val = 1;
	
	for (int i = 0; i < n; i++) {
		if (a[i] <= n) {
			pos = i;
		}
		ind[a[i]] = i;
	}
	if (pos == -1) {
		for (int i = 0; i < n; i++) {
			b[i] = i + 1;
		}
		res = n;
	} 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;
		}
	}
	sort(a, a + n);
	int j = 0;
	for (int i = n + 1; i <= a[n - 1]; i++) {
		while (a[j] < i)
			j++;
		if (ind[i] == -1) {
			res *= (n - j);
			res %= mod;
		}
	}
	return res;
}

Compilation message

gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:90:21: warning: unused variable 'val' [-Wunused-variable]
  long long res = 1, val = 1;
                     ^~~

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 376 KB Output is correct
4 Correct 2 ms 376 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 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 380 KB Output is correct
6 Correct 7 ms 632 KB Output is correct
7 Correct 14 ms 952 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 376 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 636 KB Output is correct
7 Correct 14 ms 1020 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 256 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 376 KB Output is correct
15 Correct 15 ms 1144 KB Output is correct

Subtask #4
5.0 / 5.0

# 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 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 7 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 5 ms 4316 KB Output is correct
10 Correct 6 ms 4260 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 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 4216 KB Output is correct
8 Correct 6 ms 4344 KB Output is correct
9 Correct 5 ms 4344 KB Output is correct
10 Correct 6 ms 4344 KB Output is correct
11 Correct 16 ms 4856 KB Output is correct
12 Correct 18 ms 4984 KB Output is correct
13 Correct 23 ms 5240 KB Output is correct
14 Correct 16 ms 4856 KB Output is correct
15 Correct 26 ms 6160 KB Output is correct

Subtask #7
5.0 / 5.0

# 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

Subtask #8
15.0 / 15.0

# 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 4216 KB Output is correct
6 Correct 5 ms 4216 KB Output is correct
7 Correct 5 ms 4188 KB Output is correct
8 Correct 5 ms 4216 KB Output is correct

Subtask #9
15.0 / 15.0

# 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 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 5 ms 4216 KB Output is correct
9 Correct 26 ms 5496 KB Output is correct
10 Correct 22 ms 5240 KB Output is correct
11 Correct 15 ms 5116 KB Output is correct
12 Correct 14 ms 4984 KB Output is correct
13 Correct 11 ms 4472 KB Output is correct

Subtask #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 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 5 ms 4216 KB Output is correct
9 Correct 26 ms 5624 KB Output is correct
10 Correct 22 ms 5240 KB Output is correct
11 Correct 15 ms 5112 KB Output is correct
12 Correct 14 ms 4984 KB Output is correct
13 Correct 11 ms 4472 KB Output is correct
14 Runtime error 27 ms 9848 KB Execution killed with signal 11 (could be triggered by violating memory limits)
15 Halted 0 ms 0 KB -