oj.uz

Submission #283742

# Submission time Handle Problem Language Result Execution time Memory
283742 2020-08-26T06:35:19 Z hank55663 Ancient Books (IOI17_books) C++14
50 / 100
 279 ms 22124 KB 
#include "books.h"
#include<bits/stdc++.h>
using namespace std;
#define pii pair<int,int>
#define pb push_back
#define mp make_pair
#define x first
#define y second
int f[1000005];
int l[1000005];
int r[1000005];
int Find(int x){
	if(f[x]==x)return x;
	return f[x]=Find(f[x]);
}
int pre[1000005];
long long minimum_walk(std::vector<int> p, int s) {
//	vector<pii> v;
	long long ans=0;
	int Min=1e9;
	for(int i = 0;i<p.size();i++){
		if(p[i]!=i){
//			v.pb(mp(p[i],i));
			ans+=abs(p[i]-i);
			Min=min(Min,abs(i-s));
		}
		l[i]=1e9;
		r[i]=0;
		f[i]=i;
	}
	for(int i = 0;i<p.size();i++){
		f[Find(p[i])]=Find(i);
	}
	for(int i = 0;i<p.size();i++){
		l[Find(i)]=min(l[Find(i)],i);
		r[Find(i)]=max(r[Find(i)],i);
	}
	vector<pii> v;
	for(int i = 0;i<p.size();i++){
		if(f[i]==i&&l[i]!=r[i]){
			v.pb(mp(l[i],r[i]));
		}
	}
	if(v.empty())return 0;
	sort(v.begin(),v.end());
	int Max=v[0].x;
	for(auto it:v){
		ans+=max(0,(it.x-Max)*2);
		Max=max(Max,it.y);	
	}
	if(s>Max||s<v[0].x){
		
		Min=max(s-Max,v[0].x-s);
	}
	else{
		Min=0;
	}
	return ans+Min*2;
}

Compilation message

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:21:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |  for(int i = 0;i<p.size();i++){
      |                ~^~~~~~~~~
books.cpp:31:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |  for(int i = 0;i<p.size();i++){
      |                ~^~~~~~~~~
books.cpp:34:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |  for(int i = 0;i<p.size();i++){
      |                ~^~~~~~~~~
books.cpp:39:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |  for(int i = 0;i<p.size();i++){
      |                ~^~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 0 ms 384 KB Output is correct
17 Correct 0 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 0 ms 384 KB Output is correct
17 Correct 0 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 1 ms 512 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 512 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 0 ms 384 KB Output is correct
17 Correct 0 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 1 ms 512 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 512 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 250 ms 19832 KB Output is correct
31 Correct 279 ms 19960 KB Output is correct
32 Correct 160 ms 19832 KB Output is correct
33 Correct 183 ms 22124 KB Output is correct
34 Correct 187 ms 22124 KB Output is correct
35 Correct 193 ms 22124 KB Output is correct
36 Correct 196 ms 22124 KB Output is correct
37 Correct 196 ms 20296 KB Output is correct
38 Correct 196 ms 19960 KB Output is correct
39 Correct 198 ms 19960 KB Output is correct
40 Correct 216 ms 20004 KB Output is correct
41 Correct 230 ms 19960 KB Output is correct
42 Correct 221 ms 19832 KB Output is correct
43 Correct 189 ms 22124 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 384 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 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 0 ms 384 KB Output is correct
17 Correct 0 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 1 ms 512 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 512 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 250 ms 19832 KB Output is correct
31 Correct 279 ms 19960 KB Output is correct
32 Correct 160 ms 19832 KB Output is correct
33 Correct 183 ms 22124 KB Output is correct
34 Correct 187 ms 22124 KB Output is correct
35 Correct 193 ms 22124 KB Output is correct
36 Correct 196 ms 22124 KB Output is correct
37 Correct 196 ms 20296 KB Output is correct
38 Correct 196 ms 19960 KB Output is correct
39 Correct 198 ms 19960 KB Output is correct
40 Correct 216 ms 20004 KB Output is correct
41 Correct 230 ms 19960 KB Output is correct
42 Correct 221 ms 19832 KB Output is correct
43 Correct 189 ms 22124 KB Output is correct
44 Incorrect 1 ms 384 KB 3rd lines differ - on the 1st token, expected: '3304', found: '2744'
45 Halted 0 ms 0 KB -