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답안 #900542

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
900542 2024-01-08T13:15:48 Z Shayan86 Measures (CEOI22_measures) C++14
100 / 100
 714 ms 44736 KB 
#include <bits/stdc++.h>
using namespace std;

#pragma GCC optimize("O3,unroll-loops")
// #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
// Ofast, O0, O1, O2, O3, unroll-loops, fast-math, trapv

typedef long long ll;
typedef pair<ll, ll> pll;
typedef pair<int, int> pii;

#define Mp          make_pair
#define sep         ' '
#define endl        '\n'
#define F	        first
#define S	        second
#define pb          push_back
#define all(x)      (x).begin(),(x).end()
#define kill(res)	cout << res << '\n', exit(0);
#define set_dec(x)	cout << fixed << setprecision(x);
#define fast_io     ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define file_io     freopen("input.txt", "r", stdin) ; freopen("output.txt", "w", stdout);

#define lid (id*2)
#define rid (id*2+1)
#define mid ((l+r)/2)

const ll N = 4e5 + 50;
const ll inf1 = 1e16 + 7;
const ll inf2 = 1e18 + 7;

ll n, m, D, arr[N], id[N];

vector<pll> vec;

set<int> alive, root;

int bit[N];

void add_cnt(int x, int y){
    for(; x <= n+m+1; x += x & (-x)) bit[x] += y;
}

int get_cnt(int x){
    ll out = 0;
    for(; x; x -= x & (-x)) out += bit[x];
    return out;
}

ll seg[N*4], lz[N*4];

void build(int l = 0, int r = n+m+2, int id = 1){
    if(l+1 == r){
        seg[id] = -inf2;
        if(l == 0 || l == n+m+1) seg[id] = 0;
        return;
    }
    build(l, mid, lid);
    build(mid, r, rid);
    seg[id] = max(seg[lid], seg[rid]);
}

void quex(int id, ll x){
    if(seg[id] <= -inf2) return;
    seg[id] += x; lz[id] += x;
}

void relax(int id){
    quex(lid, lz[id]);
    quex(rid, lz[id]);
    lz[id] = 0;
}

void upd(int x, ll y, int l = 0, int r = n+m+2, int id = 1){
    if(l+1 == r){
        seg[id] = y; return;
    }

    relax(id);
    if(x < mid) upd(x, y, l, mid, lid);
    else upd(x, y, mid, r, rid);
    seg[id] = max(seg[lid], seg[rid]);
}

void add(int ql, int qr, ll x, int l = 0, int r = n+m+2, int id = 1){
    if(ql <= l && r <= qr){
        quex(id, x); return;
    }
    if(qr <= l || r <= ql) return;

    relax(id);
    add(ql, qr, x, l, mid, lid);
    add(ql, qr, x, mid, r, rid);
    seg[id] = max(seg[lid], seg[rid]);
}

ll get(int ql, int qr, int l = 0, int r = n+m+2, int id = 1){
    if(ql <= l && r <= qr) return seg[id];
    if(qr <= l || r <= ql) return 0;
    relax(id);
    return max(get(ql, qr, l, mid, lid), get(ql, qr, mid, r, rid));
}

int main(){
    fast_io;

    cin >> n >> m >> D;

    arr[0] = -inf1; vec.pb({arr[0], 0});
    for(int i = 1; i <= n+m; i++){
        cin >> arr[i]; vec.pb({arr[i], i});
    }
    arr[n+m+1] = inf1; vec.pb({arr[n+m+1], n+m+1});

    sort(all(vec));
    for(int i = 1; i <= n+m; i++) id[vec[i].S] = i;

    root.insert(0); alive.insert(0);
    root.insert(n+m+1); alive.insert(n+m+1); add_cnt(n+m+1, 1);

    build();

    for(int i = 1; i <= n+m; i++){
        auto itr = alive.lower_bound(id[i]);
        itr--; int x = *itr;

        ll th = max(0ll, get(x, x+1) + D + vec[x].F - arr[i]);
        upd(id[i], th); alive.insert(id[i]); root.insert(id[i]); add_cnt(id[i], 1);

        itr = root.upper_bound(id[i]);
        if(id[i]+1 < *itr) add(id[i]+1, *itr, (get(id[i], id[i]+1) + arr[i]) - (get(x, x+1) + vec[x].F));

        while(true){
            int y = *itr;
            th = max(0ll, (get(id[i], id[i]+1) + arr[i]) + D * (get_cnt(y) - get_cnt(id[i])) - (get(y, y+1) + vec[y].F));
            if(!th) break;
            root.erase(y);
            itr = root.lower_bound(y); add(y, *itr, th);
        }

        if(i > n){
            ll out = get(0, n+m+2);
            ll o1 = out / 2; ll o2 = out % 2;
            cout << o1;
            if(o2) cout << ".5";
            cout << sep;
        }
    }

}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 6748 KB Output is correct
2 Correct 3 ms 6880 KB Output is correct
3 Correct 5 ms 6696 KB Output is correct
4 Correct 3 ms 6748 KB Output is correct
5 Correct 3 ms 6884 KB Output is correct
6 Correct 4 ms 6628 KB Output is correct
7 Correct 4 ms 6744 KB Output is correct
8 Correct 3 ms 6748 KB Output is correct

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 6748 KB Output is correct
2 Correct 3 ms 6880 KB Output is correct
3 Correct 5 ms 6696 KB Output is correct
4 Correct 3 ms 6748 KB Output is correct
5 Correct 3 ms 6884 KB Output is correct
6 Correct 4 ms 6628 KB Output is correct
7 Correct 4 ms 6744 KB Output is correct
8 Correct 3 ms 6748 KB Output is correct
9 Correct 543 ms 41204 KB Output is correct
10 Correct 661 ms 31720 KB Output is correct
11 Correct 381 ms 41148 KB Output is correct
12 Correct 524 ms 31956 KB Output is correct
13 Correct 389 ms 40744 KB Output is correct
14 Correct 337 ms 41048 KB Output is correct
15 Correct 527 ms 40388 KB Output is correct
16 Correct 379 ms 41124 KB Output is correct

Subtask #3
35.0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 428 ms 42512 KB Output is correct
2 Correct 401 ms 44220 KB Output is correct
3 Correct 411 ms 44732 KB Output is correct
4 Correct 393 ms 41920 KB Output is correct
5 Correct 400 ms 43196 KB Output is correct
6 Correct 391 ms 42684 KB Output is correct
7 Correct 398 ms 43356 KB Output is correct
8 Correct 407 ms 41988 KB Output is correct
9 Correct 393 ms 41904 KB Output is correct
10 Correct 406 ms 44388 KB Output is correct
11 Correct 401 ms 42624 KB Output is correct
12 Correct 405 ms 43708 KB Output is correct
13 Correct 403 ms 41928 KB Output is correct
14 Correct 393 ms 44736 KB Output is correct
15 Correct 446 ms 44136 KB Output is correct
16 Correct 402 ms 42176 KB Output is correct
17 Correct 394 ms 43136 KB Output is correct

Subtask #4
41.0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 428 ms 42512 KB Output is correct
2 Correct 401 ms 44220 KB Output is correct
3 Correct 411 ms 44732 KB Output is correct
4 Correct 393 ms 41920 KB Output is correct
5 Correct 400 ms 43196 KB Output is correct
6 Correct 391 ms 42684 KB Output is correct
7 Correct 398 ms 43356 KB Output is correct
8 Correct 407 ms 41988 KB Output is correct
9 Correct 393 ms 41904 KB Output is correct
10 Correct 406 ms 44388 KB Output is correct
11 Correct 401 ms 42624 KB Output is correct
12 Correct 405 ms 43708 KB Output is correct
13 Correct 403 ms 41928 KB Output is correct
14 Correct 393 ms 44736 KB Output is correct
15 Correct 446 ms 44136 KB Output is correct
16 Correct 402 ms 42176 KB Output is correct
17 Correct 394 ms 43136 KB Output is correct
18 Correct 597 ms 40876 KB Output is correct
19 Correct 693 ms 34644 KB Output is correct
20 Correct 396 ms 44480 KB Output is correct
21 Correct 350 ms 41916 KB Output is correct
22 Correct 620 ms 33320 KB Output is correct
23 Correct 358 ms 41992 KB Output is correct
24 Correct 686 ms 33256 KB Output is correct
25 Correct 430 ms 42148 KB Output is correct
26 Correct 534 ms 42432 KB Output is correct
27 Correct 714 ms 34996 KB Output is correct
28 Correct 419 ms 42628 KB Output is correct
29 Correct 642 ms 34344 KB Output is correct
30 Correct 347 ms 41916 KB Output is correct
31 Correct 532 ms 35428 KB Output is correct
32 Correct 506 ms 39868 KB Output is correct
33 Correct 623 ms 37392 KB Output is correct
34 Correct 538 ms 33980 KB Output is correct