Submission #920927

#	Time	Username	Problem	Language	Result	Execution time	Memory
920927		salmon	Ancient Books (IOI17_books)	C++14	Compilation error	0 ms	0 KiB

books

#include "books.h"

long long minimum_walk(std::vector<int> p, int s) {
    long long sum = 0;

    for(int i = 0; i < N; i++){
        sum += abs(p[i] - i);
    }
    return sum + 2;
}

Compilation message (stderr)

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:6:24: error: 'N' was not declared in this scope
    6 |     for(int i = 0; i < N; i++){
      |                        ^
books.cpp:7:16: error: 'abs' was not declared in this scope
    7 |         sum += abs(p[i] - i);
      |                ^~~