Submission #578463

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
578463	2022-06-17 03:11:23	definitelynotmee	Ancient Books (IOI17_books)	C++98	100 / 100	454 ms	111396 KiB

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#include<bits/stdc++.h>
#include "books.h"
using namespace std;
#define ff first
#define ss second
#define all(x) x.begin(), x.end()
using ll = long long;
using pii = pair<int,int>;
using pll = pair<ll,ll>;
template<typename T>
using matrix = vector<vector<T>>;
const int INF = 1e9;
long long minimum_walk(std::vector<int> p, int s) {
    int n = p.size();
    ll resp =0;
    for(int i = 0; i < n; i++){
        resp+=abs(i-p[i]);
    }
    vector<pii> crange(n);
    vector<int> cycle(n), check(n);
    auto dfs = [&](int id, int cid, auto dfs)->int{
        cycle[id] = cid;
        check[id] = 1;
        if(check[p[id]])
            return id;
        return max(id,dfs(p[id],cid,dfs));
    };
    vector<int> isgood(n);
    vector<pii> cycles;
 
 
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Compilation message (stderr)

books.cpp: In function 'long long int minimum_walk(std::vector<int>, int)':
books.cpp:95:18: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   95 |         for(auto [viz,vizp] : g[cur]){
      |                  ^

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