Submission #290444

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
290444	2020-09-03 20:00:05	A02	Ancient Books (IOI17_books)	C++14	100 / 100	163 ms	19200 KiB

books

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#include <bits/stdc++.h>
#include "books.h"
using namespace std;
long long minimum_walk(vector<int> p, int s) {
    vector<int> np;
    long long book_total = 0;
    int left_start = p.size();
    int right_start = 0;
    for (int i = 0; i < p.size(); i++){
        if (p[i] != i){
            left_start = min(left_start, i);
        }
    }
    for (int i = p.size() - 1; i >= 0; i--){
        if (p[i] != i){
            right_start = max(right_start, i);
        }
    }
    if (left_start == p.size()){
        return 0;
    }
    if (s < left_start){
 
 
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Compilation message (stderr)

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:13:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |     for (int i = 0; i < p.size(); i++){
      |                     ~~^~~~~~~~~~
books.cpp:26:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |     if (left_start == p.size()){
      |         ~~~~~~~~~~~^~~~~~~~~~~

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