oj.uz

Submission #74323

# Submission time Handle Problem Language Result Execution time Memory
74323 2018-08-31T09:48:43 Z nvmdava Ancient Books (IOI17_books) C++17
12 / 100
 2 ms 636 KB 
#include "books.h"
#include <bits/stdc++.h>
using namespace std;
int r = -1;
vector<int> p;
bool in[1000001];
inline void go(int v){
	if(in[v] == 1){
		return;
	}
	in[v] = 1;
	r = max(r, v);
	go(p[v]);
}

long long minimum_walk(vector<int> p, int s) {
	::p = p;
	bool q = 0;
	long long ans = 0;
	for(int i = 0; i < p.size(); i++){
		ans += (long long)abs(i - p[i]);
		if(in[i] || p[i] == i) continue;
		if(s <= i && s > -1){
			ans += (i - s) * 2;
			s = -1;
		} else {
			q = 1;
			s = -s;
		}
		if(r < i && r != -1){
			ans += (long long)(i - r) * 2;
		}
		go(i);
	}
	if((q == 1 ? -s : s) > r && r != -1){
		ans += (s - r) * 2;
	}
	return ans;
}

Compilation message

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:20:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < p.size(); i++){
                 ~~^~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 480 KB Output is correct
3 Correct 2 ms 480 KB Output is correct
4 Correct 2 ms 500 KB Output is correct
5 Correct 2 ms 552 KB Output is correct
6 Correct 2 ms 552 KB Output is correct
7 Correct 2 ms 552 KB Output is correct
8 Correct 2 ms 552 KB Output is correct
9 Correct 2 ms 552 KB Output is correct
10 Correct 2 ms 560 KB Output is correct
11 Correct 2 ms 560 KB Output is correct
12 Correct 2 ms 560 KB Output is correct
13 Correct 2 ms 560 KB Output is correct
14 Correct 2 ms 560 KB Output is correct
15 Correct 2 ms 560 KB Output is correct
16 Correct 2 ms 560 KB Output is correct
17 Correct 2 ms 560 KB Output is correct
18 Correct 2 ms 628 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 480 KB Output is correct
3 Correct 2 ms 480 KB Output is correct
4 Correct 2 ms 500 KB Output is correct
5 Correct 2 ms 552 KB Output is correct
6 Correct 2 ms 552 KB Output is correct
7 Correct 2 ms 552 KB Output is correct
8 Correct 2 ms 552 KB Output is correct
9 Correct 2 ms 552 KB Output is correct
10 Correct 2 ms 560 KB Output is correct
11 Correct 2 ms 560 KB Output is correct
12 Correct 2 ms 560 KB Output is correct
13 Correct 2 ms 560 KB Output is correct
14 Correct 2 ms 560 KB Output is correct
15 Correct 2 ms 560 KB Output is correct
16 Correct 2 ms 560 KB Output is correct
17 Correct 2 ms 560 KB Output is correct
18 Correct 2 ms 628 KB Output is correct
19 Incorrect 2 ms 636 KB 3rd lines differ - on the 1st token, expected: '338572', found: '339062'
20 Halted 0 ms 0 KB -

Subtask #3
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 480 KB Output is correct
3 Correct 2 ms 480 KB Output is correct
4 Correct 2 ms 500 KB Output is correct
5 Correct 2 ms 552 KB Output is correct
6 Correct 2 ms 552 KB Output is correct
7 Correct 2 ms 552 KB Output is correct
8 Correct 2 ms 552 KB Output is correct
9 Correct 2 ms 552 KB Output is correct
10 Correct 2 ms 560 KB Output is correct
11 Correct 2 ms 560 KB Output is correct
12 Correct 2 ms 560 KB Output is correct
13 Correct 2 ms 560 KB Output is correct
14 Correct 2 ms 560 KB Output is correct
15 Correct 2 ms 560 KB Output is correct
16 Correct 2 ms 560 KB Output is correct
17 Correct 2 ms 560 KB Output is correct
18 Correct 2 ms 628 KB Output is correct
19 Incorrect 2 ms 636 KB 3rd lines differ - on the 1st token, expected: '338572', found: '339062'
20 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 636 KB 3rd lines differ - on the 1st token, expected: '3304', found: '71658'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 480 KB Output is correct
3 Correct 2 ms 480 KB Output is correct
4 Correct 2 ms 500 KB Output is correct
5 Correct 2 ms 552 KB Output is correct
6 Correct 2 ms 552 KB Output is correct
7 Correct 2 ms 552 KB Output is correct
8 Correct 2 ms 552 KB Output is correct
9 Correct 2 ms 552 KB Output is correct
10 Correct 2 ms 560 KB Output is correct
11 Correct 2 ms 560 KB Output is correct
12 Correct 2 ms 560 KB Output is correct
13 Correct 2 ms 560 KB Output is correct
14 Correct 2 ms 560 KB Output is correct
15 Correct 2 ms 560 KB Output is correct
16 Correct 2 ms 560 KB Output is correct
17 Correct 2 ms 560 KB Output is correct
18 Correct 2 ms 628 KB Output is correct
19 Incorrect 2 ms 636 KB 3rd lines differ - on the 1st token, expected: '338572', found: '339062'
20 Halted 0 ms 0 KB -