oj.uz

Submission #421462

# Submission time Handle Problem Language Result Execution time Memory
421462 2021-06-09T07:47:48 Z schse Ancient Books (IOI17_books) C++17
50 / 100
 225 ms 34288 KB 
#include "books.h"
#ifndef EVAL
#include "grader.cpp"
#endif
#include <bits/stdc++.h>
using namespace std;

long long minimum_walk(std::vector<int> p, int s)
{

	vector<int> cycle(p.size(), -1);
	vector<vector<int>> cycles;
	vector<pair<int, int>> cmmc;
	long long triplenght = 0;

	for (int i = 0; i < p.size(); i++)
	{
		if (cycle[i] == -1 && p[i] != i)
		{
			int t = i;
			cycles.push_back({});
			cmmc.push_back({INT32_MAX, INT32_MIN});
			do
			{
				cmmc[cmmc.size() - 1].first = min(cmmc[cmmc.size() - 1].first, t);
				cmmc[cmmc.size() - 1].second = max(cmmc[cmmc.size() - 1].second, t);
				cycles[cycles.size() - 1].push_back(t);
				cycle[t] = cycles.size();
				triplenght += abs(t - p[t]);
				t = p[t];
			} while (t != i);
		}
	}

	if (cmmc.size() == 0)
		return 0;
	triplenght += 2 * cmmc[0].first; //initial walk

	int mx = cmmc[0].second;
	for (int i = 1; i < cmmc.size(); i++)
	{
		if (mx < cmmc[i].first)
			triplenght += abs(cmmc[i].first - mx) * 2;
		mx = max(mx, cmmc[i].second);
	}

	return triplenght;
}

Compilation message

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:16:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |  for (int i = 0; i < p.size(); i++)
      |                  ~~^~~~~~~~~~
books.cpp:40:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |  for (int i = 1; i < cmmc.size(); i++)
      |                  ~~^~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# 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 1 ms 204 KB Output is correct
4 Correct 1 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 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct

Subtask #2
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 1 ms 204 KB Output is correct
4 Correct 1 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 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 204 KB Output is correct

Subtask #3
28.0 / 28.0

# 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 1 ms 204 KB Output is correct
4 Correct 1 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 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 225 ms 23624 KB Output is correct
31 Correct 201 ms 24176 KB Output is correct
32 Correct 148 ms 18640 KB Output is correct
33 Correct 177 ms 30960 KB Output is correct
34 Correct 164 ms 30972 KB Output is correct
35 Correct 216 ms 32924 KB Output is correct
36 Correct 202 ms 32128 KB Output is correct
37 Correct 143 ms 25552 KB Output is correct
38 Correct 140 ms 24652 KB Output is correct
39 Correct 141 ms 24408 KB Output is correct
40 Correct 147 ms 23488 KB Output is correct
41 Correct 186 ms 23280 KB Output is correct
42 Correct 166 ms 23356 KB Output is correct
43 Correct 168 ms 34288 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB 3rd lines differ - on the 1st token, expected: '3304', found: '2744'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# 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 1 ms 204 KB Output is correct
4 Correct 1 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 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 225 ms 23624 KB Output is correct
31 Correct 201 ms 24176 KB Output is correct
32 Correct 148 ms 18640 KB Output is correct
33 Correct 177 ms 30960 KB Output is correct
34 Correct 164 ms 30972 KB Output is correct
35 Correct 216 ms 32924 KB Output is correct
36 Correct 202 ms 32128 KB Output is correct
37 Correct 143 ms 25552 KB Output is correct
38 Correct 140 ms 24652 KB Output is correct
39 Correct 141 ms 24408 KB Output is correct
40 Correct 147 ms 23488 KB Output is correct
41 Correct 186 ms 23280 KB Output is correct
42 Correct 166 ms 23356 KB Output is correct
43 Correct 168 ms 34288 KB Output is correct
44 Incorrect 1 ms 204 KB 3rd lines differ - on the 1st token, expected: '3304', found: '2744'
45 Halted 0 ms 0 KB -