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Submission #980951

# Submission time Handle Problem Language Result Execution time Memory
980951 2024-05-12T16:15:09 Z SmuggingSpun Gondola (IOI14_gondola) C++14
60 / 100
 21 ms 2804 KB 
#include "gondola.h"
#include<bits/stdc++.h>
using namespace std;
int valid(int n, int inputSeq[]){
	vector<pair<int, int>>p;
	map<int, bool>cnt;
	for(int i = 0; i < n; i++){
		if(inputSeq[i] <= n){
			p.emplace_back(inputSeq[i], i);
		}
		else if(cnt[inputSeq[i]]){
			return 0;
		}
		else{
			cnt[inputSeq[i]] = true;
		}
	}	
	sort(p.begin(), p.end());
	for(int i = 1; i < p.size(); i++){
		if((p[i].second < p[i - 1].second && (p[i].second += n) < p[i - 1].second) || (p[i].second - p[i - 1].second != p[i].first - p[i - 1].first)){
			return 0;
		}
	}
	return 1;
}
int replacement(int n, int gondolaSeq[], int replacementSeq[]){
	if(valid(n, gondolaSeq) == 0){
		return 0;
	}
	int index = min_element(gondolaSeq, gondolaSeq + n) - gondolaSeq, L = 0;
	if(gondolaSeq[index] > n){
		vector<int>p(n), init(n);
		iota(p.begin(), p.end(), 0);
		iota(init.begin(), init.end(), 1);
		sort(p.begin(), p.end(), [&] (int i, int j) -> bool{
			return gondolaSeq[i] < gondolaSeq[j];
		});
		int current = n;
		for(int& i : p){
			while(gondolaSeq[i] > init[i]){
				replacementSeq[L++] = init[i];
				init[i] = ++current;
			}
		}
	}
	else{
		vector<int>init(n);
		for(int i = 0; i < n; i++){
			init[(i + index) % n] = (gondolaSeq[index] - 1 + i) % n + 1;
		}
		vector<int>p;
		for(int i = 0; i < n; i++){
			if(gondolaSeq[i] > n){
				p.emplace_back(i);
			}
		}
		sort(p.begin(), p.end(), [&] (int i, int j) -> bool{
			return gondolaSeq[i] < gondolaSeq[j];
		});
		int current = n;
		for(int& i : p){
			while(gondolaSeq[i] > init[i]){
				replacementSeq[L++] = init[i];
				init[i] = ++current;
			}
		}
	}
	return L;
}
const int mod = 1e9 + 7;
int power(int a, int b){
	int ans = 1;
	for(; b > 0; b >>= 1, a = 1LL * a * a % mod){
		if(b & 1){
			ans = 1LL * ans * a % mod;
		}
	}
	return ans;
}
int countReplacement(int n, int inputSeq[]){
	if(valid(n, inputSeq) == 0){
		return 0;
	}
	vector<int>p;
	for(int i = 0; i < n; i++){
		if(inputSeq[i] > n){
			p.emplace_back(i);
		}
	}
	sort(p.begin(), p.end(), [&] (int i, int j) -> bool{
		return inputSeq[i] < inputSeq[j];
	});
	int ans = 1;
	for(int i = 0, pre = n; i < p.size(); pre = inputSeq[p[i++]]){
		ans = 1LL * ans * power(int(p.size()) - i, inputSeq[p[i]] - pre - 1);
	}
	return ans;
}

Compilation message

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:19:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |  for(int i = 1; i < p.size(); i++){
      |                 ~~^~~~~~~~~~
gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:94:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   94 |  for(int i = 0, pre = n; i < p.size(); pre = inputSeq[p[i++]]){
      |                          ~~^~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 412 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 5 ms 1240 KB Output is correct
7 Correct 13 ms 1744 KB Output is correct
8 Correct 8 ms 1824 KB Output is correct
9 Correct 3 ms 860 KB Output is correct
10 Correct 12 ms 1744 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 5 ms 1240 KB Output is correct
7 Correct 12 ms 1748 KB Output is correct
8 Correct 8 ms 1748 KB Output is correct
9 Correct 4 ms 860 KB Output is correct
10 Correct 13 ms 1748 KB Output is correct
11 Correct 0 ms 372 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 13 ms 2392 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 18 ms 2260 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 428 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 10 ms 1748 KB Output is correct
12 Correct 11 ms 1748 KB Output is correct
13 Correct 21 ms 2648 KB Output is correct
14 Correct 9 ms 1748 KB Output is correct
15 Correct 20 ms 2804 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct

Subtask #8
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Incorrect 1 ms 348 KB Integer 1478020098 violates the range [0, 1000000008]
8 Halted 0 ms 0 KB -

Subtask #9
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Incorrect 0 ms 348 KB Integer 1478020098 violates the range [0, 1000000008]
8 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Incorrect 0 ms 348 KB Integer 1478020098 violates the range [0, 1000000008]
8 Halted 0 ms 0 KB -