Submission #292759

#	Time	Username	Problem	Language	Result	Execution time	Memory
292759		Saboon	고대 책들 (IOI17_books)	C++17	50 / 100	226 ms	15992 KiB

books

#include "books.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int maxn = 1e6 + 10;

bool visited[maxn];

long long minimum_walk(vector<int> p, int s){
	int n = p.size();
	set<int> S;
	ll answer = 0;
    for (int i = 0; i < n; i++)
        answer += abs(p[i]-i);
	int tmp = 0, Max = 0;
	for (int i = 0; i < n; i++){
        if (!visited[i] and p[i] != i){
            if (i >= Max)
                tmp += (i - Max);
            int x = i;
            while (!visited[x]){
                visited[x] = 1;
                Max = max(Max, x);
                x = p[x];
            }
        }
	}
	answer += 2*tmp;
	return answer;
}

Compilation message (stderr)

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:13:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   13 |     for (int i = 0; i < n; i++)
      |     ^~~
books.cpp:15:2: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   15 |  int tmp = 0, Max = 0;
      |  ^~~

• Subtask 1: 12 / 12
• Subtask 2: 10 / 10
• Subtask 3: 28 / 28
• Subtask 4: 0 / 20
• Subtask 5: 0 / 30