Submission #71794

#	Time	Username	Problem	Language	Result	Execution time	Memory
71794		nirshalmon	Ancient Books (IOI17_books)	C++14	0 / 100	2 ms	432 KiB

books

#include "books.h"
#include<bits/stdc++.h>

using namespace std;

long long minimum_walk(std::vector<int> p, int s) {
	long long base = -2;
	int mx = -1;
	for (int i = 0; i < p.size(); ++i) {
		base += abs(p[i] - i);
		mx = max(p[i], i);
		if (mx <= i) base += 2;
	}
	return base;
}

Compilation message (stderr)

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:9:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < p.size(); ++i) {
                  ~~^~~~~~~~~~

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