Submission #424781

#	Time	Username	Problem	Language	Result	Execution time	Memory
424781		saleh	Ancient Books (IOI17_books)	C++17	Compilation error	0 ms	0 KiB

books

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

using namespace std;

const int MAXN = 1000 * 1000 + 23;


int mark[MAXN], cnt = 0, ans, jav;

long long minimum_walk(std::vector<int> p, int s) {
	if (s != 0) return 0;
	for (int i = 0; i < n; i++) if (p[i] != i && mark[i] == 0) {
		int tmp = i, pre = i;
		mark[i] = ++cnt;
		while ((tmp = p[tmp]) != i) {
			mark[tmp] = cnt;
			jav += abs(pre - tmp);
			pre = tmp;
		}
		ans = max(ans, i);
	}
	return jav + ans * 2;
}

//int main() {}

Compilation message (stderr)

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:13:22: error: 'n' was not declared in this scope
   13 |  for (int i = 0; i < n; i++) if (p[i] != i && mark[i] == 0) {
      |                      ^