oj.uz

Submission #145405

# Submission time Handle Problem Language Result Execution time Memory
145405 2019-08-19T19:39:52 Z mohammedehab2002 Ancient Books (IOI17_books) C++11
50 / 100
 195 ms 37588 KB 
#include "books.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> p;
vector<pair<int,int> > c,d;
bool vis[1000005];
void dfs(int i)
{
	vis[i]=1;
	auto &x=c[c.size()-1];
	x.first=min(x.first,i);
	x.second=max(x.second,i);
	if (!vis[p[i]])
	dfs(p[i]);
}
long long minimum_walk(vector<int> pp,int s)
{
	p=pp;
	while (!p.empty() && p.back()+1==p.size())
	p.pop_back();
	int n=p.size();
	if (!n)
	return 0;
	long long ans=0;
	for (int i=0;i<n;i++)
	{
		ans+=abs(p[i]-i);
		if (!vis[i])
		{
			c.push_back({i,i});
			dfs(i);
		}
	}
	sort(c.begin(),c.end());
	for (auto x:c)
	{
		if (d.empty() || x.first>d.back().second)
		d.push_back(x);
		else
		d[d.size()-1].second=max(d[d.size()-1].second,x.second);
	}
	return ans+2*((int)d.size()-1);
}

Compilation message

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:19:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  while (!p.empty() && p.back()+1==p.size())
                       ~~~~~~~~~~^~~~~~~~~~

Subtask #1
12.0 / 12.0

# 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 2 ms 376 KB Output is correct
7 Correct 2 ms 248 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 256 KB Output is correct

Subtask #2
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 2 ms 376 KB Output is correct
7 Correct 2 ms 248 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 256 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct

Subtask #3
28.0 / 28.0

# 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 2 ms 376 KB Output is correct
7 Correct 2 ms 248 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 256 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 195 ms 19812 KB Output is correct
31 Correct 193 ms 19832 KB Output is correct
32 Correct 138 ms 18808 KB Output is correct
33 Correct 189 ms 37588 KB Output is correct
34 Correct 192 ms 37552 KB Output is correct
35 Correct 187 ms 31828 KB Output is correct
36 Correct 166 ms 24936 KB Output is correct
37 Correct 154 ms 20436 KB Output is correct
38 Correct 160 ms 19960 KB Output is correct
39 Correct 155 ms 19924 KB Output is correct
40 Correct 163 ms 19868 KB Output is correct
41 Correct 188 ms 19800 KB Output is correct
42 Correct 187 ms 19764 KB Output is correct
43 Correct 190 ms 28100 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 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 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 2 ms 376 KB Output is correct
7 Correct 2 ms 248 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 256 KB Output is correct
18 Correct 2 ms 256 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 195 ms 19812 KB Output is correct
31 Correct 193 ms 19832 KB Output is correct
32 Correct 138 ms 18808 KB Output is correct
33 Correct 189 ms 37588 KB Output is correct
34 Correct 192 ms 37552 KB Output is correct
35 Correct 187 ms 31828 KB Output is correct
36 Correct 166 ms 24936 KB Output is correct
37 Correct 154 ms 20436 KB Output is correct
38 Correct 160 ms 19960 KB Output is correct
39 Correct 155 ms 19924 KB Output is correct
40 Correct 163 ms 19868 KB Output is correct
41 Correct 188 ms 19800 KB Output is correct
42 Correct 187 ms 19764 KB Output is correct
43 Correct 190 ms 28100 KB Output is correct
44 Incorrect 2 ms 376 KB 3rd lines differ - on the 1st token, expected: '3304', found: '2744'
45 Halted 0 ms 0 KB -