oj.uz

Submission #389369

# Submission time Handle Problem Language Result Execution time Memory
389369 2021-04-14T03:41:56 Z Pichon5 Gondola (IOI14_gondola) C++17
90 / 100
 56 ms 9844 KB 
#include <bits/stdc++.h>
#include "gondola.h"
 
#pragma GCC optimize("O3")
#define ll long long
const ll M = 1e9+9;
 
using namespace std;
 
int valid(int n, int inputSeq[]){
	set<int> seen;
	for(int i = 0; i < n; i++){
		if(seen.count(inputSeq[i])) return 0;
		seen.insert(inputSeq[i]);
	}
	int pos = -1, st;
	for(int i = 0; i < n; i++) if(inputSeq[i] <= n) pos = i, st = inputSeq[i];
	if(pos == -1) return 1;
	for(int j = 0; j < n; j++, pos++, pos %= n){
		if(inputSeq[pos] > n) continue;
		if(inputSeq[pos] != (st+j-1)%n+1) return 0;
	}
	return 1;
}
 
int replacement(int n, int gondolaSeq[], int replacementSeq[]){
	int l = 0, last = n, pos = -1, st;
	vector< pair<int, int> > q;
	vector<int> p(n);
	for(int i = 0; i < n; i++) if(gondolaSeq[i] <= n) pos = i, st = gondolaSeq[i];
	if(pos == -1) for(int i = 0; i < n; i++) p[i] = i+1;
	else for(int i = 0; i < n; i++, pos++, pos %= n) p[pos] = (st+i-1)%n+1;
	for(int i = 0; i < n; i++) if(gondolaSeq[i] > n) q.push_back({gondolaSeq[i], i});
	if(q.empty()) return 0;
	sort(q.begin(), q.end());
	for(auto &t : q){
		replacementSeq[l++] = p[t.second];
		last++;
		while(last != t.first) replacementSeq[l++] = last++;
	}
	return l;
}
 
int countReplacement(int n, int inputSeq[]){
	if(!valid(n, inputSeq)) return 0;
	vector<int> a(250001);
	ll s = 1, m = n;
	for(int i = 0; i < n; i++) a[inputSeq[i]]++;
	for(int i = 249999; i > n; i--) a[i] += a[i+1];
	for(int i = n+1; i < 250000; i++){
		if(!a[i]) break;
		if(a[i] == a[i+1]) s *= a[i], s %= M;
	}
	for(int i = 0; i < n; i++) if(inputSeq[i] <= n) m = 1;
	s *= m, s %= M;
	return s;
}

Compilation message

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:16:16: warning: 'st' may be used uninitialized in this function [-Wmaybe-uninitialized]
   16 |  int pos = -1, st;
      |                ^~
gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:27:33: warning: 'st' may be used uninitialized in this function [-Wmaybe-uninitialized]
   27 |  int l = 0, last = n, pos = -1, st;
      |                                 ^~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 14 ms 2152 KB Output is correct
7 Correct 10 ms 588 KB Output is correct
8 Correct 32 ms 3800 KB Output is correct
9 Correct 8 ms 1356 KB Output is correct
10 Correct 34 ms 4416 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 14 ms 2124 KB Output is correct
7 Correct 10 ms 588 KB Output is correct
8 Correct 30 ms 3884 KB Output is correct
9 Correct 8 ms 1356 KB Output is correct
10 Correct 33 ms 4520 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 19 ms 2056 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 55 ms 4544 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 10 ms 868 KB Output is correct
12 Correct 12 ms 1008 KB Output is correct
13 Correct 16 ms 1236 KB Output is correct
14 Correct 10 ms 844 KB Output is correct
15 Correct 23 ms 2196 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1228 KB Output is correct
2 Correct 1 ms 1228 KB Output is correct
3 Correct 1 ms 1228 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1228 KB Output is correct
2 Correct 1 ms 1228 KB Output is correct
3 Correct 1 ms 1228 KB Output is correct
4 Correct 1 ms 1228 KB Output is correct
5 Correct 1 ms 1228 KB Output is correct
6 Correct 1 ms 1228 KB Output is correct
7 Correct 1 ms 1228 KB Output is correct
8 Correct 1 ms 1228 KB Output is correct

Subtask #9
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1228 KB Output is correct
2 Correct 1 ms 1228 KB Output is correct
3 Correct 1 ms 1228 KB Output is correct
4 Correct 1 ms 1228 KB Output is correct
5 Correct 1 ms 1228 KB Output is correct
6 Correct 1 ms 1228 KB Output is correct
7 Correct 1 ms 1228 KB Output is correct
8 Correct 1 ms 1232 KB Output is correct
9 Correct 42 ms 4480 KB Output is correct
10 Correct 35 ms 4676 KB Output is correct
11 Correct 14 ms 2480 KB Output is correct
12 Correct 16 ms 2856 KB Output is correct
13 Correct 5 ms 1612 KB Output is correct

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1228 KB Output is correct
2 Correct 1 ms 1228 KB Output is correct
3 Correct 1 ms 1228 KB Output is correct
4 Correct 1 ms 1228 KB Output is correct
5 Correct 1 ms 1232 KB Output is correct
6 Correct 1 ms 1232 KB Output is correct
7 Correct 1 ms 1228 KB Output is correct
8 Correct 1 ms 1228 KB Output is correct
9 Correct 44 ms 4400 KB Output is correct
10 Correct 36 ms 4672 KB Output is correct
11 Correct 14 ms 2508 KB Output is correct
12 Correct 16 ms 2808 KB Output is correct
13 Correct 5 ms 1612 KB Output is correct
14 Runtime error 56 ms 9844 KB Execution killed with signal 11
15 Halted 0 ms 0 KB -