oj.uz

Submission #1045335

# Submission time Handle Problem Language Result Execution time Memory
1045335 2024-08-05T20:36:32 Z beaconmc Ancient Books (IOI17_books) C++14
12 / 100
 1 ms 348 KB 
#include "books.h"

#include <bits/stdc++.h>

 
typedef long long ll;
#define FOR(i,x,y) for(ll i=x; i<y; i++)
#define FORNEG(i,x,y) for(ll i=x; i>y; i--)
 
using namespace std;


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

	vector<int> q;
	for (auto&i : p)q.push_back(i);
	sort(q.begin(), q.end());
	if (p==q) return 0;
	vector<bool> visited;
	vector<ll> maxis;
	for (auto&i : p) visited.push_back(0), maxis.push_back(-1);

	FOR(i,0,p.size()){
		vector<ll> stuff;
		ll temp = i;
		ll maxi = i;
		if (visited[temp]) continue;
		visited[temp] = 1;
		temp = p[temp];
		stuff.push_back(temp);
		while (temp != i){

			maxi = max(maxi, temp);
			visited[temp] = 1;
			temp = p[temp];
			visited[temp] = 1;
			stuff.push_back(temp);
		}
		for (auto&k : stuff){

			maxis[k] = maxi;
		}
	}

	ll cur = 0;
	ll ans = 0;
	FOR(i,0,p.size()){
		ans += abs(p[i]-i);
	}
	ll hi = p.size()-1;
	while (p[hi]==hi) hi--;




	while (cur < p.size()-1){
		if (cur >= hi) break;
		if (cur == maxis[cur]){
			ans+=2, cur++;
		}
		else cur = maxis[cur];
	}


	return ans;

}

Compilation message

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:21:12: warning: unused variable 'i' [-Wunused-variable]
   21 |  for (auto&i : p) visited.push_back(0), maxis.push_back(-1);
      |            ^
books.cpp:7:33: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    7 | #define FOR(i,x,y) for(ll i=x; i<y; i++)
......
   23 |  FOR(i,0,p.size()){
      |      ~~~~~~~~~~~~                
books.cpp:23:2: note: in expansion of macro 'FOR'
   23 |  FOR(i,0,p.size()){
      |  ^~~
books.cpp:7:33: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    7 | #define FOR(i,x,y) for(ll i=x; i<y; i++)
......
   47 |  FOR(i,0,p.size()){
      |      ~~~~~~~~~~~~                
books.cpp:47:2: note: in expansion of macro 'FOR'
   47 |  FOR(i,0,p.size()){
      |  ^~~
books.cpp:56:13: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |  while (cur < p.size()-1){
      |         ~~~~^~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Incorrect 0 ms 348 KB 3rd lines differ - on the 1st token, expected: '338572', found: '338576'
20 Halted 0 ms 0 KB -

Subtask #3
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Incorrect 0 ms 348 KB 3rd lines differ - on the 1st token, expected: '338572', found: '338576'
20 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 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 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Incorrect 0 ms 348 KB 3rd lines differ - on the 1st token, expected: '338572', found: '338576'
20 Halted 0 ms 0 KB -