Submission #464883

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
464883	2021-08-14 11:28:09	blue	Ancient Books (IOI17_books)	C++17	50 / 100	224 ms	30660 KiB

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#include "books.h"
#include <vector>
#include <cstdlib>
#include <algorithm>
#include <iostream>
using namespace std;
const int maxN = 1'000'000;
const int ind_R = 1'000'005;
const int ind_L = -1;
const long long INF = 1'000'000'000'000'000'000LL;
int N;
vector<int> P;
int S;
int cycle_ind = -1;
vector<int> cycle(maxN, -1);
vector<int> L(maxN, ind_R);
vector<int> R(maxN, ind_L);
long long essential_cost = 0;
void extend(int& l, int& r) //[l, r] is extended fully except for the cycles of l and r
{
  int l_new = min(L[cycle[l]], L[cycle[r]]);
  int r_new = max(R[cycle[l]], R[cycle[r]]);
 
 
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Compilation message (stderr)

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:136:5: warning: 'new_r' may be used uninitialized in this function [-Wmaybe-uninitialized]
  136 |   r = new_r;
      |   ~~^~~~~~~

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