Submission #1000626

#	Time	Username	Problem	Language	Result	Execution time	Memory
1000626		vjudge1	Safety (NOI18_safety)	C++17	0 / 100	5 ms	2652 KiB

safety

// #pragma optimize ("g",on)
// #pragma GCC optimize("inline")
// #pragma GCC optimize ("Ofast")
// #pragma GCC optimize ("unroll-loops")
// #pragma GCC optimize ("03")
// #pragma GCC target ("sse,sse2,sse3,ssse3,sse4,popcnt,abm,avx2,mmx,fma,avx,tune=native")

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>

#define file(s) freopen(s".in", "r", stdin); freopen(s".out", "w", stdout);
#define adiyer(); ios_base::sync_with_stdio(0); cin.tie(0);
#define bitcount(n) __builtin_popcountll(n)
#define puts(x) cout << (x ? "YES\n" : "NO\n");
#define ent (i == n ? '\n' : ' ')
#define all(x) x.begin(), x.end()
#define md ((l + r) >> 1)
#define rv(v) ((v << 1) | 1)
#define lv(v) (v << 1)
#define rs(v) rv(v), md + 1, r
#define ls(v) lv(v), l, md
#define len(s) (int) s.size()

#define yes {cout << "YES\n"; return; }
#define no {cout << "no\n"; return; }
#define skip continue
#define pb push_back
#define S second
#define F first

// #define int long long

using namespace std;
using namespace __gnu_pbds;

typedef long long ll;
typedef long double ld;
typedef vector < ll > vll;
typedef pair < ll, ll > pll;
typedef vector < pair < ll, ll > > vpll;
typedef tree < ll, null_type, less < ll >, rb_tree_tag, tree_order_statistics_node_update > ordered_set;

const int dx[8] = {1, 0, -1, 0, 1, 1, -1, -1};
const int dy[8] = {0, 1, 0, -1, -1, 1, -1, 1};
const int N = 5000 + 12;
const int K = 5000 + 12;
const int MAX = 2e5;
const int mod = 998244353;
const ll inf = 1e9 + 10;

mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());

ll n, k;
ll a[N], dp[N][K], t[4 * N];

ll cmb(ll x, ll y){
	return min(x, y);
}

void upd(ll k, ll x, ll v = 1, ll l = 1, ll r = N - 5){
	if(l == r){
		t[v] = x;
		return;
	}
	if(k <= md) upd(k, x, (v << 1), l, md);
	else upd(k, x, ((v << 1) | 1), md + 1, r);
	t[v] = cmb(t[(v << 1)], t[((v << 1) | 1)]);
}

ll get(ll tl, ll tr, ll v = 1, ll l = 1, ll r = N - 5){
	if(r < tl||tr < l) return inf;
	if(tl <= l && r <= tr) return t[v];
	return cmb(get(tl, tr, (v << 1), l, md), get(tl, tr, ((v << 1) | 1), md + 1, r));
}

void output(){
	cin >> n >> k;
	for(ll i = 1; i <= n; i++) cin >> a[i];
	for(ll i = 1; i <= n; i++){
		for(ll x = 0; x <= 5000; x++){
			dp[i][x] = get(max(0ll, x - k), min(400ll, x + k)) + abs(a[i] - x);
		}
		for(ll x = 0; x <= 5000; x++){
			upd(x, dp[i][x]);
		}
	}
	cout << get(0ll, 5000ll);
}

const bool cases = 0;

signed main(){
//  file("disrupt");
    adiyer();
    int tt = 1;
    if(cases) cin >> tt;
    for(int i = 1; i <= tt; i++){
//      cout << "Case " << i << ":\n";
        output();
    }
}

• Subtask 1: 0 / 3
• Subtask 2: 0 / 4
• Subtask 3: 0 / 9
• Subtask 4: 0 / 5
• Subtask 5: 0 / 6
• Subtask 6: 0 / 11
• Subtask 7: 0 / 11
• Subtask 8: 0 / 22
• Subtask 9: 0 / 29