oj.uz

Submission #283837

# Submission time Handle Problem Language Result Execution time Memory
283837 2020-08-26T07:48:01 Z erd1 Ancient Books (IOI17_books) C++14
50 / 100
 1668 ms 87000 KB 
#include "books.h"

#include<bits/stdc++.h>

using namespace std;
#define pb push_back
#define ff first
#define ss second
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
typedef pair<int, int> pii;
typedef long long lld;
typedef long double ld;

template<typename Iter>
ostream& outIt(ostream& out, Iter b, Iter e){
	for(Iter i = b; i != e; ++i)
		out << (i == b?"":" ") << *i;
	return out;
}
template<typename T1, typename T2>
ostream& operator<<(ostream& out, pair<T1, T2> p){
	return out << '(' << p.ff << ", " << p.ss << ')';
}
template<typename T>
ostream& operator<<(ostream& out, vector<T> v){
	return outIt(out << '[', all(v)) << ']';
}
vector<pii> cs;
set<int> poss;
void add(vector<int>& p, int i){
	if(poss.count(i))return;
	poss.insert(i);
	add(p, p[i]);
}
long long minimum_walk(vector<int> p, int s) {
	lld ans = 0;
	int pmin = INT_MAX, pmax = INT_MIN;
	for(int i = 0; i < p.size(); i++)if(p[i] != i)ans += abs(p[i]-i), cs.pb({min(i, p[i]), max(i, p[i])}), pmin = min(pmin, i), pmax = max(pmax, i);
	if(ans == 0)return 0;
	sort(all(cs));
	int r = cs.front().ff;
	add(p, r);
	bool fl = true;
	for(int i = 0; i < cs.size(); i++){
		if(cs[i].ff > s && s > r)fl = false;
		if(cs[i].ff > r) add(p, r), add(p, cs[i].ff);
		ans += 2*max(0, cs[i].ff - r);
		r = max(r, cs[i].ss);
	}
	add(p, r);
	assert(fl);
	if(fl){
		if(p.size() <= 1000){
			for(int j = 0; j < p.size(); j++){
				for(int i = 0; i < p.size(); i++){
					if(poss.count(i))continue;
					if(poss.lower_bound(i) != poss.lower_bound(p[i]))add(p, i);
				}
			}
		}
		int l = s, r = s;
		while(l >= 0 && !poss.count(l))l--;
		while(r < p.size() && !poss.count(r))r++;
		if(l < 0)ans += 2*(r-s);
		else if(r == p.size()) ans += 2*(s-l);
		else ans += 2*min(r-s, s-l);
	}

	return ans;
}

Compilation message

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:39:19: 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++)if(p[i] != i)ans += abs(p[i]-i), cs.pb({min(i, p[i]), max(i, p[i])}), pmin = min(pmin, i), pmax = max(pmax, i);
      |                 ~~^~~~~~~~~~
books.cpp:45:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |  for(int i = 0; i < cs.size(); i++){
      |                 ~~^~~~~~~~~~~
books.cpp:55:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |    for(int j = 0; j < p.size(); j++){
      |                   ~~^~~~~~~~~~
books.cpp:56:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |     for(int i = 0; i < p.size(); i++){
      |                    ~~^~~~~~~~~~
books.cpp:64:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   64 |   while(r < p.size() && !poss.count(r))r++;
      |         ~~^~~~~~~~~~
books.cpp:66:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   66 |   else if(r == p.size()) ans += 2*(s-l);
      |           ~~^~~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 1 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 0 ms 256 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 0 ms 256 KB Output is correct
17 Correct 0 ms 256 KB Output is correct
18 Correct 0 ms 256 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 1 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 0 ms 256 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 0 ms 256 KB Output is correct
17 Correct 0 ms 256 KB Output is correct
18 Correct 0 ms 256 KB Output is correct
19 Correct 35 ms 384 KB Output is correct
20 Correct 38 ms 544 KB Output is correct
21 Correct 1 ms 256 KB Output is correct
22 Correct 47 ms 504 KB Output is correct
23 Correct 46 ms 384 KB Output is correct
24 Correct 47 ms 508 KB Output is correct
25 Correct 48 ms 512 KB Output is correct
26 Correct 41 ms 384 KB Output is correct
27 Correct 39 ms 384 KB Output is correct
28 Correct 40 ms 384 KB Output is correct
29 Correct 28 ms 512 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 1 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 0 ms 256 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 0 ms 256 KB Output is correct
17 Correct 0 ms 256 KB Output is correct
18 Correct 0 ms 256 KB Output is correct
19 Correct 35 ms 384 KB Output is correct
20 Correct 38 ms 544 KB Output is correct
21 Correct 1 ms 256 KB Output is correct
22 Correct 47 ms 504 KB Output is correct
23 Correct 46 ms 384 KB Output is correct
24 Correct 47 ms 508 KB Output is correct
25 Correct 48 ms 512 KB Output is correct
26 Correct 41 ms 384 KB Output is correct
27 Correct 39 ms 384 KB Output is correct
28 Correct 40 ms 384 KB Output is correct
29 Correct 28 ms 512 KB Output is correct
30 Correct 1668 ms 87000 KB Output is correct
31 Correct 858 ms 51796 KB Output is correct
32 Correct 137 ms 8184 KB Output is correct
33 Correct 300 ms 34796 KB Output is correct
34 Correct 290 ms 34784 KB Output is correct
35 Correct 333 ms 42324 KB Output is correct
36 Correct 379 ms 48596 KB Output is correct
37 Correct 403 ms 47444 KB Output is correct
38 Correct 454 ms 46932 KB Output is correct
39 Correct 449 ms 47136 KB Output is correct
40 Correct 525 ms 49596 KB Output is correct
41 Correct 1108 ms 66728 KB Output is correct
42 Correct 659 ms 49620 KB Output is correct
43 Correct 209 ms 12392 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 17 ms 384 KB 3rd lines differ - on the 1st token, expected: '3304', found: '3590'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 1 ms 256 KB Output is correct
8 Correct 1 ms 256 KB Output is correct
9 Correct 0 ms 256 KB Output is correct
10 Correct 1 ms 256 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 0 ms 256 KB Output is correct
13 Correct 0 ms 256 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 2 ms 256 KB Output is correct
16 Correct 0 ms 256 KB Output is correct
17 Correct 0 ms 256 KB Output is correct
18 Correct 0 ms 256 KB Output is correct
19 Correct 35 ms 384 KB Output is correct
20 Correct 38 ms 544 KB Output is correct
21 Correct 1 ms 256 KB Output is correct
22 Correct 47 ms 504 KB Output is correct
23 Correct 46 ms 384 KB Output is correct
24 Correct 47 ms 508 KB Output is correct
25 Correct 48 ms 512 KB Output is correct
26 Correct 41 ms 384 KB Output is correct
27 Correct 39 ms 384 KB Output is correct
28 Correct 40 ms 384 KB Output is correct
29 Correct 28 ms 512 KB Output is correct
30 Correct 1668 ms 87000 KB Output is correct
31 Correct 858 ms 51796 KB Output is correct
32 Correct 137 ms 8184 KB Output is correct
33 Correct 300 ms 34796 KB Output is correct
34 Correct 290 ms 34784 KB Output is correct
35 Correct 333 ms 42324 KB Output is correct
36 Correct 379 ms 48596 KB Output is correct
37 Correct 403 ms 47444 KB Output is correct
38 Correct 454 ms 46932 KB Output is correct
39 Correct 449 ms 47136 KB Output is correct
40 Correct 525 ms 49596 KB Output is correct
41 Correct 1108 ms 66728 KB Output is correct
42 Correct 659 ms 49620 KB Output is correct
43 Correct 209 ms 12392 KB Output is correct
44 Incorrect 17 ms 384 KB 3rd lines differ - on the 1st token, expected: '3304', found: '3590'
45 Halted 0 ms 0 KB -