180902025-09-29 12:22:13ubormaciVölgy (100 pont)cpp17Hibás válasz 40/100300ms1332 KiB
#include <iostream>
#include <algorithm> // for sort, mainly
#include <vector>
#include <map>
#include <set>
#include <cmath>
#include <array>
#include <string>
#include <cstdio>
#include <iterator>
#include <unordered_set>
#include <cstdint> // for int64_t, int32_t, etc
#include <queue>
#include <stack>
#include <deque>
#include <numeric> // gcd, lcm
#include <fstream>
#include <bitset> // for bitset
#include <iomanip>
#include <cassert> // for set with custom ordering
#include <type_traits> // for set with custom ordering
#include <utility> // for swap, forward, etc
using namespace std;

#pragma GCC optimize("O2")
// #pragma GCC optimize("O1","O2","O3","Ofast","unroll-loops")
//#pragma GCC target("sse","sse2","sse3","sse4.1","sse4.2","avx","avx2","fma")

template<typename A, typename B> ostream& operator<<(ostream &os, const pair<A, B> &p) { return os << '(' << p.first << ", " << p.second << ')'; }
template<typename T_container, typename T = typename enable_if<!is_same<T_container, string>::value, typename T_container::value_type>::type> ostream& operator<<(ostream &os, const T_container &v) { os << '{'; string sep; for (const T &x : v) os << sep << x, sep = ", "; return os << '}'; }
void dbg_out() { cout << endl; }
template<typename Head, typename... Tail> void dbg_out(Head H, Tail... T) { cout << ' ' << H; dbg_out(T...); }
#ifdef LOCAL
#define dbg(...) cout << "(" << #__VA_ARGS__ << "):", dbg_out(__VA_ARGS__)
#else
#define dbg(...)
#endif

/*
 *
 * notes:
 *
 * int64_t
 * stoi(string s) -> string to int
 * to_string() -> int (or else) to string
 *
 * vector declaration:
 * vector<ll> v(n, 0)
 * vector<vector<ll>> v(n, vector<ll>(n, 0));
 *
 * {if statement} ? {truth value} : {false value}
 *
 * set lower bound/upper bound:
 * 	// . . . m1 . . . d . . . . m2
 *    auto m1_it = b.lower_bound(d);
 *    advance(m1_it, -1);
 *    m1 = *m1_it;
 *	m2 = *b.upper_bound(d);
 *
 * #ifdef LOCAL
 *    freopen("in.txt","r",stdin);
 *    freopen("out.txt","w",stdout);
 * #endif
 *
 * constexpr auto lcm(auto x, auto... xs)
 * {
 *	return ((x = std::lcm(x, xs)), ...);
 * }
 *
 * std::gcd(int a, int b)
 *
 * cout << setprecision(n);
 *
 * set with custom ordering
 * set<ll, decltype(&cmp)> qu(cmp);
 *
 */

typedef int64_t ll;

void solve() {

    ll n;
    cin >> n;
    vector<ll> v(n, 0);
    for(ll i = 0; i < n; i++) {
        cin >> v[i];
    }  


    queue<pair<ll,ll>> q;

    ll mx = 0;
    
    for(ll i = 0; i < n; i++) {

        // vegigmegyunk a que-n
        // ha az elem erteke kisebb mint a mienk
        // akkor szamolunk max-ot, es aztan kivesszuk
        // ha nagyobb mint a mienk, szamolunk max-ot, es visszarakjuk

        queue<pair<ll,ll>> nextq;

        while(!q.empty()) {

            auto f = q.front();
            q.pop();

            ll dis = i - f.second;
            if(dis >= 2) {
                mx = max(dis, mx);
            }
            

            if(f.first > v[i]) {
                nextq.push(f);
            }

        }

        q.push({v[i], i});
        while(!nextq.empty()) {
            q.push(nextq.front());
            nextq.pop();
        }

    }

    cout << mx;

}

int main()
{
    std::ios_base::sync_with_stdio(false);
    //cin.tie(nullptr);
    //cout.tie(nullptr);

    solve();

    return 0;
}
RészfeladatÖsszpontTesztVerdiktIdőMemória
base40/100
1Elfogadva0/01ms500 KiB
2Hibás válasz0/02ms316 KiB
3Elfogadva5/51ms500 KiB
4Elfogadva5/51ms316 KiB
5Hibás válasz0/51ms352 KiB
6Hibás válasz0/51ms316 KiB
7Hibás válasz0/51ms316 KiB
8Elfogadva5/51ms316 KiB
9Hibás válasz0/56ms316 KiB
10Hibás válasz0/51ms316 KiB
11Elfogadva5/52ms316 KiB
12Elfogadva5/53ms316 KiB
13Hibás válasz0/53ms316 KiB
14Hibás válasz0/54ms500 KiB
15Elfogadva5/525ms1116 KiB
16Elfogadva5/530ms1076 KiB
17Időlimit túllépés0/5300ms1228 KiB
18Elfogadva5/518ms1076 KiB
19Időlimit túllépés0/5300ms1240 KiB
20Időlimit túllépés0/5300ms1248 KiB
21Időlimit túllépés0/5300ms1228 KiB
22Időlimit túllépés0/5277ms1332 KiB