oj.uz

답안 #1094183

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1094183 2024-09-28T19:46:55 Z vladilius Worst Reporter 4 (JOI21_worst_reporter4) C++17
79 / 100
 1452 ms 524288 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
#define pb push_back
#define ff first
#define ss second
#define arr3 array<ll, 3>
const ll inf = 1e15;
const int N = 2e5;

struct node{
    ll x;
    int l, r, s;
    node(){
        l = r = x = s = 0;
    }
};

vector<node> all = {node()};
int CC = 0;

int nw(){
    all.pb(node());
    return ++CC;
}

struct DS{
    vector<pair<int, ll>> vv;
    int rt;
    void init(){
        rt = nw();
    }
    int size(){
        return all[rt].s;
    }
    void fn(int v, int tl, int tr){
        if (!all[v].s) return;
        if (tl == tr){
            vv.pb({tl, all[v].x});
            return;
        }
        int tm = (tl + tr) / 2;
        if (all[v].l) fn(all[v].l, tl, tm);
        if (all[v].r) fn(all[v].r, tm + 1, tr);
    }
    void fn(){
        vv.clear();
        fn(rt, 1, N);
    }
    void recalc(int v){
        all[v].x = all[v].s = 0;
        if (all[v].l){
            all[v].x += all[all[v].l].x;
            all[v].s += all[all[v].l].s;
        }
        if (all[v].r){
            all[v].x += all[all[v].r].x;
            all[v].s += all[all[v].r].s;
        }
    }
    void add(int v, int tl, int tr, int& p, ll& x){
        if (tl == tr){
            all[v].x += x;
            all[v].s = 1;
            return;
        }
        int tm = (tl + tr) / 2;
        if (p <= tm){
            if (!all[v].l) all[v].l = nw();
            add(all[v].l, tl, tm, p, x);
        }
        else {
            if (!all[v].r) all[v].r = nw();
            add(all[v].r, tm + 1, tr, p, x);
        }
        recalc(v);
    }
    void add(int l, int r, ll x){
        add(rt, 1, N, l, x);
        r++; x = -x;
        if (r <= N) add(rt, 1, N, r, x);
    }
    void add1(int& p, ll& x){
        add(rt, 1, N, p, x);
    }
    void clear(int& v, int tl, int tr, int l, int r){
        if (l > tr || r < tl) return;
        if (l <= tl && tr <= r){
            all[v] = node();
            return;
        }
        int tm = (tl + tr) / 2;
        if (all[v].l) clear(all[v].l, tl, tm, l, r);
        if (all[v].r) clear(all[v].r, tm + 1, tr, l, r);
        recalc(v);
    }
    void upd(int v, int tl, int tr, int& p, ll& x){
        if (tl == tr){
            all[v].x = x;
            all[v].s = 1;
            return;
        }
        int tm = (tl + tr) / 2;
        if (p <= tm){
            if (!all[v].l) all[v].l = nw();
            upd(all[v].l, tl, tm, p, x);
        }
        else {
            if (!all[v].r) all[v].r = nw();
            upd(all[v].r, tm + 1, tr, p, x);
        }
        recalc(v);
    }
    void upd(int p, ll x){
        upd(rt, 1, N, p, x);
    }
    void ch(int l, int r, ll x){
        ll S1 = 0, S2 = get(l - 1);
        if (r < N) S1 = get(r + 1);

        if (l < r) clear(rt, 1, N, l + 1, r);
        upd(l, x - S2);
        if (r < N) upd(r + 1, S1 - x);
    }
    ll get(int v, int tl, int tr, int& l, int& r){
        if (l > tr || r < tl) return 0;
        if (l <= tl && tr <= r) return all[v].x;
        int tm = (tl + tr) / 2;
        ll out = 0;
        if (all[v].l) out += get(all[v].l, tl, tm, l, r);
        if (all[v].r) out += get(all[v].r, tm + 1, tr, l, r);
        return out;
    }
    ll get(int p){
        if (!p) return 0;
        int l = 1;
        return get(rt, 1, N, l, p);
    }
};

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    
    int n; cin>>n;
    vector<int> a(n + 1), h(n + 1), c(n + 1), g[n + 1];
    for (int i = 1; i <= n; i++){
        cin>>a[i]>>h[i]>>c[i];
        if (a[i] != i) g[a[i]].pb(i);
    }
    
    vector<pii> all;
    for (int i = 1; i <= n; i++) all.pb({h[i], i});
    sort(all.begin(), all.end());
    int i = 0, cc = 0;
    while (i < all.size()){
        int j = i;
        while (j < all.size() && all[i] == all[j]){
            j++;
        }
        cc++;
        while (i < j){
            h[all[i].ss] = cc;
            i++;
        }
    }
    
    DS T[n + 1];
    function<void(int)> solve = [&](int v){
        for (int i: g[v]) solve(i);
        T[v].init();
        for (int i: g[v]){
            if (T[v].size() < T[i].size()) swap(T[v], T[i]);
            T[i].fn();
            for (auto [p, x]: T[i].vv){
                T[v].add1(p, x);
            }
        }
        
        if (h[v] > 1) T[v].add(1, h[v] - 1, c[v]);
        if (h[v] < cc) T[v].add(h[v] + 1, cc, c[v]);
        
        ll S1 = T[v].get(h[v]), S2 = (h[v] == cc) ? inf : T[v].get(h[v] + 1);
        
        if (S1 < S2 && h[v] > 1 && T[v].get(h[v] - 1) > S1){
            int l = 1, r = h[v] - 1;
            while (l + 1 < r){
                int m = (l + r) / 2;
                ll k = T[v].get(m);
                if (k <= S1){
                    l = m + 1;
                }
                else {
                    r = m;
                }
            }
            if (T[v].get(l) > S1) r = l;
            
            T[v].ch(r, h[v] - 1, S1);
        }
    };
    solve(1);

    ll out = 1e15;
    for (int x = 1; x <= cc; x++) out = min(out, T[1].get(x));
    cout<<out<<"\n";
}

Compilation message

worst_reporter2.cpp: In function 'int main()':
worst_reporter2.cpp:158:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  158 |     while (i < all.size()){
      |            ~~^~~~~~~~~~~~
worst_reporter2.cpp:160:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  160 |         while (j < all.size() && all[i] == all[j]){
      |                ~~^~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 23 ms 7392 KB Output is correct
6 Correct 28 ms 7528 KB Output is correct
7 Correct 23 ms 7432 KB Output is correct
8 Correct 23 ms 7428 KB Output is correct
9 Correct 23 ms 7424 KB Output is correct
10 Correct 24 ms 7536 KB Output is correct
11 Correct 25 ms 7420 KB Output is correct
12 Correct 16 ms 3588 KB Output is correct
13 Correct 16 ms 2700 KB Output is correct
14 Correct 16 ms 3080 KB Output is correct
15 Correct 16 ms 3076 KB Output is correct
16 Correct 29 ms 14072 KB Output is correct
17 Correct 30 ms 14072 KB Output is correct
18 Correct 22 ms 7684 KB Output is correct
19 Correct 19 ms 4612 KB Output is correct
20 Correct 19 ms 4584 KB Output is correct
21 Correct 16 ms 4608 KB Output is correct
22 Correct 21 ms 7164 KB Output is correct
23 Correct 20 ms 7248 KB Output is correct
24 Correct 17 ms 4608 KB Output is correct
25 Correct 19 ms 4608 KB Output is correct
26 Correct 6 ms 2440 KB Output is correct
27 Correct 19 ms 7656 KB Output is correct
28 Correct 17 ms 4632 KB Output is correct
29 Correct 15 ms 4868 KB Output is correct
30 Correct 7 ms 2440 KB Output is correct
31 Correct 7 ms 2404 KB Output is correct

Subtask #2
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 23 ms 7392 KB Output is correct
6 Correct 28 ms 7528 KB Output is correct
7 Correct 23 ms 7432 KB Output is correct
8 Correct 23 ms 7428 KB Output is correct
9 Correct 23 ms 7424 KB Output is correct
10 Correct 24 ms 7536 KB Output is correct
11 Correct 25 ms 7420 KB Output is correct
12 Correct 16 ms 3588 KB Output is correct
13 Correct 16 ms 2700 KB Output is correct
14 Correct 16 ms 3080 KB Output is correct
15 Correct 16 ms 3076 KB Output is correct
16 Correct 29 ms 14072 KB Output is correct
17 Correct 30 ms 14072 KB Output is correct
18 Correct 22 ms 7684 KB Output is correct
19 Correct 19 ms 4612 KB Output is correct
20 Correct 19 ms 4584 KB Output is correct
21 Correct 16 ms 4608 KB Output is correct
22 Correct 21 ms 7164 KB Output is correct
23 Correct 20 ms 7248 KB Output is correct
24 Correct 17 ms 4608 KB Output is correct
25 Correct 19 ms 4608 KB Output is correct
26 Correct 6 ms 2440 KB Output is correct
27 Correct 19 ms 7656 KB Output is correct
28 Correct 17 ms 4632 KB Output is correct
29 Correct 15 ms 4868 KB Output is correct
30 Correct 7 ms 2440 KB Output is correct
31 Correct 7 ms 2404 KB Output is correct
32 Correct 27 ms 7424 KB Output is correct
33 Correct 1452 ms 435508 KB Output is correct
34 Correct 1335 ms 435252 KB Output is correct
35 Correct 1281 ms 438104 KB Output is correct
36 Correct 1268 ms 438064 KB Output is correct
37 Correct 1272 ms 439456 KB Output is correct
38 Correct 1270 ms 438576 KB Output is correct
39 Correct 864 ms 161112 KB Output is correct
40 Correct 792 ms 112176 KB Output is correct
41 Correct 486 ms 87208 KB Output is correct
42 Correct 819 ms 143792 KB Output is correct
43 Correct 772 ms 94600 KB Output is correct
44 Correct 1361 ms 463276 KB Output is correct
45 Correct 1357 ms 440748 KB Output is correct
46 Correct 960 ms 456360 KB Output is correct
47 Correct 1060 ms 244980 KB Output is correct
48 Correct 1041 ms 245492 KB Output is correct
49 Correct 714 ms 245232 KB Output is correct
50 Correct 827 ms 222372 KB Output is correct
51 Correct 815 ms 222388 KB Output is correct
52 Correct 882 ms 245884 KB Output is correct
53 Correct 932 ms 245992 KB Output is correct
54 Correct 222 ms 87464 KB Output is correct
55 Correct 790 ms 243192 KB Output is correct
56 Correct 637 ms 151016 KB Output is correct
57 Correct 561 ms 105068 KB Output is correct
58 Correct 300 ms 69292 KB Output is correct
59 Correct 261 ms 69240 KB Output is correct

Subtask #3
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 23 ms 7392 KB Output is correct
6 Correct 28 ms 7528 KB Output is correct
7 Correct 23 ms 7432 KB Output is correct
8 Correct 23 ms 7428 KB Output is correct
9 Correct 23 ms 7424 KB Output is correct
10 Correct 24 ms 7536 KB Output is correct
11 Correct 25 ms 7420 KB Output is correct
12 Correct 16 ms 3588 KB Output is correct
13 Correct 16 ms 2700 KB Output is correct
14 Correct 16 ms 3080 KB Output is correct
15 Correct 16 ms 3076 KB Output is correct
16 Correct 29 ms 14072 KB Output is correct
17 Correct 30 ms 14072 KB Output is correct
18 Correct 22 ms 7684 KB Output is correct
19 Correct 19 ms 4612 KB Output is correct
20 Correct 19 ms 4584 KB Output is correct
21 Correct 16 ms 4608 KB Output is correct
22 Correct 21 ms 7164 KB Output is correct
23 Correct 20 ms 7248 KB Output is correct
24 Correct 17 ms 4608 KB Output is correct
25 Correct 19 ms 4608 KB Output is correct
26 Correct 6 ms 2440 KB Output is correct
27 Correct 19 ms 7656 KB Output is correct
28 Correct 17 ms 4632 KB Output is correct
29 Correct 15 ms 4868 KB Output is correct
30 Correct 7 ms 2440 KB Output is correct
31 Correct 7 ms 2404 KB Output is correct
32 Correct 27 ms 7424 KB Output is correct
33 Correct 1452 ms 435508 KB Output is correct
34 Correct 1335 ms 435252 KB Output is correct
35 Correct 1281 ms 438104 KB Output is correct
36 Correct 1268 ms 438064 KB Output is correct
37 Correct 1272 ms 439456 KB Output is correct
38 Correct 1270 ms 438576 KB Output is correct
39 Correct 864 ms 161112 KB Output is correct
40 Correct 792 ms 112176 KB Output is correct
41 Correct 486 ms 87208 KB Output is correct
42 Correct 819 ms 143792 KB Output is correct
43 Correct 772 ms 94600 KB Output is correct
44 Correct 1361 ms 463276 KB Output is correct
45 Correct 1357 ms 440748 KB Output is correct
46 Correct 960 ms 456360 KB Output is correct
47 Correct 1060 ms 244980 KB Output is correct
48 Correct 1041 ms 245492 KB Output is correct
49 Correct 714 ms 245232 KB Output is correct
50 Correct 827 ms 222372 KB Output is correct
51 Correct 815 ms 222388 KB Output is correct
52 Correct 882 ms 245884 KB Output is correct
53 Correct 932 ms 245992 KB Output is correct
54 Correct 222 ms 87464 KB Output is correct
55 Correct 790 ms 243192 KB Output is correct
56 Correct 637 ms 151016 KB Output is correct
57 Correct 561 ms 105068 KB Output is correct
58 Correct 300 ms 69292 KB Output is correct
59 Correct 261 ms 69240 KB Output is correct
60 Runtime error 281 ms 524288 KB Execution killed with signal 9
61 Halted 0 ms 0 KB -