Submission #565287

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
565287	2022-05-20 15:29:02	hoanghq2004	Ancient Books (IOI17_books)	C++14	50 / 100	180 ms	35388 KiB

books

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#include <bits/stdc++.h>
#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include "books.h"
using namespace __gnu_pbds;
using namespace std;
template <typename T>
using ordered_set = tree <T, null_type, less <T>, rb_tree_tag, tree_order_statistics_node_update>;
long long minimum_walk(vector<int> p, int s) {
    int n = p.size();
    vector <int> vis(n, 0);
    vector <pair <int, int>> S;
    long long tot = 0;
    int last = 0;
    if (is_sorted(p.begin(), p.end())) return 0;
    for (int i = n - 1; i >= 0; --i) {
        if (p[i] != i) {
            last = i + 1;
            break;
        }
    }
    for (int u = 0; u < n; ++u) {
        tot += abs(u - p[u]);
        if (vis[u]) continue;
        int v = u;
 
 
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Compilation message (stderr)

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:44:15: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   44 |     for (auto [x, sign]: S) {
      |               ^

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