제출 #441227

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
441227		Vladth11	K blocks (IZhO14_blocks)	C++14	100 / 100	219 ms	163900 KiB

blocks

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define debug(x) cerr << #x << " " << x << "\n"
#define debugs(x) cerr << #x << " " << x << " "
#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")

using namespace std;
using namespace __gnu_pbds;
typedef long long ll;
typedef pair <ll, ll> pii;
typedef pair <long double, pii> muchie;
typedef tree <ll, null_type, less_equal <ll>, rb_tree_tag, tree_order_statistics_node_update> OST;

const ll NMAX = 100001;
const ll INF = (1LL << 60);
const ll HALF = (1LL << 59);
const ll MOD = 1000000007;
const ll BLOCK = 318;
const ll base = 31;
const ll nr_of_bits = 21;
const ll LIMIT = 1000;

ll dp[NMAX][101]; ///aici mai putem scoate chestii
ll n, k;
priority_queue <pii> pq[101];
ll v[NMAX];
pii stiva[NMAX][101];
ll vf[101];
ll f[NMAX];
ll best[NMAX][101];

int main() {
    ll i;
    cin >> n >> k;
    for(i = 1; i <= n; i++){
        cin >> v[i];
    }
    for(i = 0; i <= n; i++){
        for(ll j = 0; j <= k; j++)
            dp[i][j] = HALF;
    }
    dp[0][0] = 0;
    for(i = 0; i <= k; i++)
        best[0][i] = HALF;
    for(i = 1; i <= n; i++){
        for(ll j = 1; j <= min(i, k); j++){
            ll minim = dp[i - 1][j - 1];
            while(vf[j] && v[stiva[vf[j]][j].second] <= v[i]){
                minim = min(minim, stiva[vf[j]][j].first);
                vf[j]--;
            }
            dp[i][j] = min({dp[i][j], minim + v[i], best[vf[j]][j]});
            stiva[++vf[j]][j] = {minim, i};
            best[vf[j]][j] = min(best[vf[j] - 1][j], minim + v[i]);
        }
    }
    cout << dp[n][k];
    return 0;
}

• Subtask 1: 14 / 14
• Subtask 2: 18 / 18
• Subtask 3: 21 / 21
• Subtask 4: 47 / 47