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답안 #1094197

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1094197 2024-09-28T22:46:53 Z vladilius Worst Reporter 4 (JOI21_worst_reporter4) C++17
79 / 100
 2000 ms 502832 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
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<int, 3>
const int NN = 17000000;

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

node all[NN];
int CC = 0;

int nw(){
    CC++;
    if (CC == NN){
        exit(0);
    }
    all[CC] = node();
    return CC;
}

struct DS{
    vector<pair<int, ll>> vv;
    int rt, N;
    void init(int Ns){
        rt = nw();
        N = Ns;
    }
    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 find(int v, int tl, int tr, ll& x, ll p){
        if (tl == tr) return tl;
        int tm = (tl + tr) / 2;
        if (all[v].l && (all[all[v].l].x + p) <= x){
            return find(all[v].r, tm + 1, tr, x, p + all[all[v].l].x);
        }
        return find(all[v].l, tl, tm, x, p);
    }
    vector<arr3> gd;
    void dec(int v, int tl, int tr, int& r){
        if (tl > r) return;
        if (tr <= r){
            gd.pb({v, tl, tr});
            return;
        }
        int tm = (tl + tr) / 2;
        if (all[v].l) dec(all[v].l, tl, tm, r);
        if (all[v].r) dec(all[v].r, tm + 1, tr, r);
    }
    int fn(int v, int tl, int tr, ll& x, ll p){
        if (tl == tr) return tl;
        int tm = (tl + tr) / 2;
        if (!all[v].l) return fn(all[v].r, tm + 1, tr, x, p);
        if (!all[v].r) return fn(all[v].l, tl, tm, x, p);
        if ((p + all[all[v].l].x) <= x){
            return fn(all[v].r, tm + 1, tr, x, p + all[all[v].l].x);
        }
        return fn(all[v].l, tl, tm, x, p);
    }
    int find(ll x, int r){
        gd.clear();
        dec(rt, 1, N, r);
        ll s = 0;
        for (auto [v, tl, tr]: gd){
            if ((s + all[v].x) > x){
                return fn(v, tl, tr, x, s);
            }
            s += all[v].x;
        }
        return 0;
    }
};

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    
    all[0] = node();
    
    int n; cin>>n;
    vector<int> a(n + 1), h(n + 1), c(n + 1);
    for (int i = 1; i <= n; i++){
        cin>>a[i]>>h[i]>>c[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++;
        }
    }
    
    vector<int> g1[n + 1];
    for (int i = 1; i <= n; i++){
        if (a[i] != i) g1[a[i]].pb(i);
    }
    vector<bool> used(n + 1), seen(n + 1);
    vector<int> dd(n + 1), d[n + 1], st;
    function<void(int)> dfs = [&](int v){
        seen[v] = used[v] = 1;
        st.pb(v);
        for (int i: g1[v]){
            if (used[i]){
                if (seen[i]){
                    for (int j: st){
                        dd[j] = st[0];
                    }
                }
                continue;
            }
            dfs(i);
        }
        seen[v] = 0; st.pop_back();
    };
    
    for (int i = 1; i <= n; i++){
        if (!used[i]){
            dfs(i);
        }
    }
    
    vector<int> g[n + 1];
    for (int i = 1; i <= n; i++){
        if (!dd[i]) dd[i] = i;
        d[dd[i]].pb(i);
    }
    for (int i = 1; i <= n; i++){
        int x = dd[a[i]], y = dd[i];
        if (x != y) g[x].pb(y);
    }
    
    vector<ll> sum(cc + 1);
    vector<int> t;
    DS T[n + 1];
    function<void(int)> solve = [&](int v){
        used[v] = 1;
        for (int i: g[v]) solve(i);
        
        T[v].init(cc);
        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);
            }
        }
        
        ll S = 0;
        for (int i: d[v]) S += c[i];
        
        t.clear();
        for (int i: d[v]){
            t.pb(h[i]);
            sum[h[i]] = 0;
        }
        for (int i: d[v]) sum[h[i]] += c[i];
        
        sort(t.begin(), t.end());
        int pre = 1;
        for (int i: t){
            if (pre < i){
                T[v].add(pre, i - 1, S);
            }
            pre = i + 1;
            T[v].add(i, i, S - sum[i]);
        }
        if (pre <= cc){
            T[v].add(pre, cc, S);
        }
        
        for (int i: t){
            ll X = T[v].get(i);
            if (i == 1 || T[v].get(i - 1) <= X) continue;
            int r = T[v].find(X, i - 1);
            T[v].ch(r, i - 1, X);
        }
    };
    fill(used.begin(), used.end(), 0);
    ll out = 0;
    for (int i = 1; i <= n; i++){
        if (!used[i]){
            solve(i);
            out += T[i].get(1);
            CC = 0;
        }
    }
    cout<<out<<"\n";
}

Compilation message

worst_reporter2.cpp: In function 'int main()':
worst_reporter2.cpp:206:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  206 |     while (i < all.size()){
      |            ~~^~~~~~~~~~~~
worst_reporter2.cpp:208:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  208 |         while (j < all.size() && all[i] == all[j]){
      |                ~~^~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 153 ms 399440 KB Output is correct
2 Correct 157 ms 399444 KB Output is correct
3 Correct 151 ms 399444 KB Output is correct
4 Correct 155 ms 399440 KB Output is correct
5 Correct 181 ms 401488 KB Output is correct
6 Correct 165 ms 401488 KB Output is correct
7 Correct 172 ms 401492 KB Output is correct
8 Correct 169 ms 401552 KB Output is correct
9 Correct 180 ms 401488 KB Output is correct
10 Correct 169 ms 401580 KB Output is correct
11 Correct 173 ms 401480 KB Output is correct
12 Correct 164 ms 402040 KB Output is correct
13 Correct 160 ms 402000 KB Output is correct
14 Correct 164 ms 401524 KB Output is correct
15 Correct 175 ms 401492 KB Output is correct
16 Correct 179 ms 401612 KB Output is correct
17 Correct 185 ms 401616 KB Output is correct
18 Correct 168 ms 401740 KB Output is correct
19 Correct 177 ms 401744 KB Output is correct
20 Correct 170 ms 401688 KB Output is correct
21 Correct 170 ms 401528 KB Output is correct
22 Correct 172 ms 401232 KB Output is correct
23 Correct 166 ms 401232 KB Output is correct
24 Correct 165 ms 401544 KB Output is correct
25 Correct 168 ms 401744 KB Output is correct
26 Correct 156 ms 402004 KB Output is correct
27 Correct 170 ms 401492 KB Output is correct
28 Correct 162 ms 401744 KB Output is correct
29 Correct 157 ms 402000 KB Output is correct
30 Correct 158 ms 401488 KB Output is correct
31 Correct 157 ms 401488 KB Output is correct

Subtask #2
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 153 ms 399440 KB Output is correct
2 Correct 157 ms 399444 KB Output is correct
3 Correct 151 ms 399444 KB Output is correct
4 Correct 155 ms 399440 KB Output is correct
5 Correct 181 ms 401488 KB Output is correct
6 Correct 165 ms 401488 KB Output is correct
7 Correct 172 ms 401492 KB Output is correct
8 Correct 169 ms 401552 KB Output is correct
9 Correct 180 ms 401488 KB Output is correct
10 Correct 169 ms 401580 KB Output is correct
11 Correct 173 ms 401480 KB Output is correct
12 Correct 164 ms 402040 KB Output is correct
13 Correct 160 ms 402000 KB Output is correct
14 Correct 164 ms 401524 KB Output is correct
15 Correct 175 ms 401492 KB Output is correct
16 Correct 179 ms 401612 KB Output is correct
17 Correct 185 ms 401616 KB Output is correct
18 Correct 168 ms 401740 KB Output is correct
19 Correct 177 ms 401744 KB Output is correct
20 Correct 170 ms 401688 KB Output is correct
21 Correct 170 ms 401528 KB Output is correct
22 Correct 172 ms 401232 KB Output is correct
23 Correct 166 ms 401232 KB Output is correct
24 Correct 165 ms 401544 KB Output is correct
25 Correct 168 ms 401744 KB Output is correct
26 Correct 156 ms 402004 KB Output is correct
27 Correct 170 ms 401492 KB Output is correct
28 Correct 162 ms 401744 KB Output is correct
29 Correct 157 ms 402000 KB Output is correct
30 Correct 158 ms 401488 KB Output is correct
31 Correct 157 ms 401488 KB Output is correct
32 Correct 170 ms 401456 KB Output is correct
33 Correct 1138 ms 485660 KB Output is correct
34 Correct 1136 ms 484428 KB Output is correct
35 Correct 1121 ms 482764 KB Output is correct
36 Correct 1152 ms 484812 KB Output is correct
37 Correct 1160 ms 486140 KB Output is correct
38 Correct 1169 ms 489884 KB Output is correct
39 Correct 773 ms 502496 KB Output is correct
40 Correct 752 ms 502544 KB Output is correct
41 Correct 596 ms 502476 KB Output is correct
42 Correct 764 ms 478668 KB Output is correct
43 Correct 768 ms 478664 KB Output is correct
44 Correct 1144 ms 500512 KB Output is correct
45 Correct 1132 ms 497596 KB Output is correct
46 Correct 787 ms 495052 KB Output is correct
47 Correct 820 ms 483272 KB Output is correct
48 Correct 866 ms 483272 KB Output is correct
49 Correct 651 ms 483200 KB Output is correct
50 Correct 794 ms 464784 KB Output is correct
51 Correct 779 ms 464788 KB Output is correct
52 Correct 763 ms 484300 KB Output is correct
53 Correct 765 ms 484184 KB Output is correct
54 Correct 410 ms 502832 KB Output is correct
55 Correct 781 ms 482688 KB Output is correct
56 Correct 674 ms 492204 KB Output is correct
57 Correct 648 ms 495904 KB Output is correct
58 Correct 456 ms 481224 KB Output is correct
59 Correct 444 ms 481160 KB Output is correct

Subtask #3
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 153 ms 399440 KB Output is correct
2 Correct 157 ms 399444 KB Output is correct
3 Correct 151 ms 399444 KB Output is correct
4 Correct 155 ms 399440 KB Output is correct
5 Correct 181 ms 401488 KB Output is correct
6 Correct 165 ms 401488 KB Output is correct
7 Correct 172 ms 401492 KB Output is correct
8 Correct 169 ms 401552 KB Output is correct
9 Correct 180 ms 401488 KB Output is correct
10 Correct 169 ms 401580 KB Output is correct
11 Correct 173 ms 401480 KB Output is correct
12 Correct 164 ms 402040 KB Output is correct
13 Correct 160 ms 402000 KB Output is correct
14 Correct 164 ms 401524 KB Output is correct
15 Correct 175 ms 401492 KB Output is correct
16 Correct 179 ms 401612 KB Output is correct
17 Correct 185 ms 401616 KB Output is correct
18 Correct 168 ms 401740 KB Output is correct
19 Correct 177 ms 401744 KB Output is correct
20 Correct 170 ms 401688 KB Output is correct
21 Correct 170 ms 401528 KB Output is correct
22 Correct 172 ms 401232 KB Output is correct
23 Correct 166 ms 401232 KB Output is correct
24 Correct 165 ms 401544 KB Output is correct
25 Correct 168 ms 401744 KB Output is correct
26 Correct 156 ms 402004 KB Output is correct
27 Correct 170 ms 401492 KB Output is correct
28 Correct 162 ms 401744 KB Output is correct
29 Correct 157 ms 402000 KB Output is correct
30 Correct 158 ms 401488 KB Output is correct
31 Correct 157 ms 401488 KB Output is correct
32 Correct 170 ms 401456 KB Output is correct
33 Correct 1138 ms 485660 KB Output is correct
34 Correct 1136 ms 484428 KB Output is correct
35 Correct 1121 ms 482764 KB Output is correct
36 Correct 1152 ms 484812 KB Output is correct
37 Correct 1160 ms 486140 KB Output is correct
38 Correct 1169 ms 489884 KB Output is correct
39 Correct 773 ms 502496 KB Output is correct
40 Correct 752 ms 502544 KB Output is correct
41 Correct 596 ms 502476 KB Output is correct
42 Correct 764 ms 478668 KB Output is correct
43 Correct 768 ms 478664 KB Output is correct
44 Correct 1144 ms 500512 KB Output is correct
45 Correct 1132 ms 497596 KB Output is correct
46 Correct 787 ms 495052 KB Output is correct
47 Correct 820 ms 483272 KB Output is correct
48 Correct 866 ms 483272 KB Output is correct
49 Correct 651 ms 483200 KB Output is correct
50 Correct 794 ms 464784 KB Output is correct
51 Correct 779 ms 464788 KB Output is correct
52 Correct 763 ms 484300 KB Output is correct
53 Correct 765 ms 484184 KB Output is correct
54 Correct 410 ms 502832 KB Output is correct
55 Correct 781 ms 482688 KB Output is correct
56 Correct 674 ms 492204 KB Output is correct
57 Correct 648 ms 495904 KB Output is correct
58 Correct 456 ms 481224 KB Output is correct
59 Correct 444 ms 481160 KB Output is correct
60 Correct 153 ms 399440 KB Output is correct
61 Correct 154 ms 399532 KB Output is correct
62 Correct 151 ms 399436 KB Output is correct
63 Correct 156 ms 399628 KB Output is correct
64 Execution timed out 2054 ms 494144 KB Time limit exceeded
65 Halted 0 ms 0 KB -