oj.uz

답안 #1097351

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1097351 2024-10-07T01:50:50 Z thangdz2k7 별자리 3 (JOI20_constellation3) C++17
100 / 100
 288 ms 93268 KB 
// author : thembululquaUwU
// 3.9.2024

#include <bits/stdc++.h>
#define pb push_back
#define fi first
#define se second
#define endl '\n'

using namespace std;
using ll = long long;
using ii = pair <int, int>;
using vi = vector <int>;

const int N = 2e5 + 5;
const int mod = 1e9 + 7;
const int LG = 20;

void maxl(auto &a, auto b) {a = max(a, b);}
void minl(auto &a, auto b) {a = min(a, b);}

int n, a[N], root;
ii rmq[N][LG];
vi adj[N];

ii get(int l, int r){
    int lg = log2(r - l + 1);
    return max(rmq[l][lg], rmq[r - (1 << lg) + 1][lg]);
}

void getEd(int p, int l, int r){
    if (l > r) return;
    int u = get(l, r).se;
    if (!p) root = u; else adj[p].pb(u);
    getEd(u, l, u - 1); getEd(u, u + 1, r);
}

int timer, t_in[N], t_out[N], jump[N][LG];

void dfs1(int u = root){
    t_in[u] = ++ timer;
    for (int j = 1; j < LG; ++ j){
        int to = jump[u][j - 1];
        if (!to) break;
        jump[u][j] = jump[to][j - 1];
    }
    for (int v : adj[u]) {
        jump[v][0] = u; dfs1(v);
    }
    t_out[u] = timer;
}

vector <ii> stars[N];
ll dp[N], bit[N];

void upd(int l, int r, ll v){
    for (; l <= n; l += l & -l) bit[l] += v;
    for (r = r + 1; r <= n; r += r & -r) bit[r] -= v;
}

ll qry(int u){
    ll ans = 0;
    for (; u; u -= u & -u) ans += bit[u];
    return ans;
}

void dfs2(int u = root){
    int s = 0;
    for (int v : adj[u]) dfs2(v), s += v, dp[u] += dp[v];
    for (int v : adj[u]) if (v ^ s) upd(t_in[v], t_out[v], dp[s - v]);

    for (auto [x, c] : stars[u]){
        ll cost = c;
        cost += qry(t_in[x]);
        for (int v : adj[x]) cost += dp[v];
        maxl(dp[u], cost);
    }
}

void solve(){
    cin >> n;
    for (int i = 1; i <= n; ++ i) {
        cin >> a[i]; rmq[i][0] = {a[i], i};
    }

    for (int i = n; i >= 1; -- i){
        for (int j = 1; j < LG; ++ j){
            int u = i + (1 << (j - 1));
            if (u > n) break;
            rmq[i][j] = max(rmq[i][j - 1], rmq[u][j - 1]);
        }
    }
    getEd(0, 1, n); dfs1();

    int m; cin >> m; ll ans = 0;
    while (m --){
        int x, y, c; cin >> x >> y >> c; ans += c;
        int u = x; for (int j = LG - 1; j >= 0; -- j){
            int to = jump[u][j];
            if (to && a[to] < y) u = to;
        }
        stars[u].pb({x, c});
    }
    dfs2();

    cout << ans - dp[root];
}

int main(){
    if (fopen("pqh.inp", "r")){
        freopen("pqh.inp", "r", stdin);
        freopen("pqh.out", "w", stdout);
    }
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    int t = 1; // cin >> t;
    while (t --) solve();
    return 0;
}

Compilation message

constellation3.cpp:19:11: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   19 | void maxl(auto &a, auto b) {a = max(a, b);}
      |           ^~~~
constellation3.cpp:19:20: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   19 | void maxl(auto &a, auto b) {a = max(a, b);}
      |                    ^~~~
constellation3.cpp:20:11: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   20 | void minl(auto &a, auto b) {a = min(a, b);}
      |           ^~~~
constellation3.cpp:20:20: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   20 | void minl(auto &a, auto b) {a = min(a, b);}
      |                    ^~~~
constellation3.cpp: In function 'int main()':
constellation3.cpp:111:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  111 |         freopen("pqh.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
constellation3.cpp:112:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  112 |         freopen("pqh.out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 9820 KB Output is correct
2 Correct 4 ms 9820 KB Output is correct
3 Correct 4 ms 9820 KB Output is correct
4 Correct 4 ms 9816 KB Output is correct
5 Correct 4 ms 9820 KB Output is correct
6 Correct 5 ms 9820 KB Output is correct
7 Correct 4 ms 9820 KB Output is correct
8 Correct 4 ms 9784 KB Output is correct
9 Correct 5 ms 9820 KB Output is correct
10 Correct 5 ms 9820 KB Output is correct
11 Correct 4 ms 9820 KB Output is correct
12 Correct 5 ms 9820 KB Output is correct
13 Correct 4 ms 9872 KB Output is correct
14 Correct 4 ms 9820 KB Output is correct
15 Correct 5 ms 9820 KB Output is correct
16 Correct 4 ms 9820 KB Output is correct
17 Correct 5 ms 9820 KB Output is correct
18 Correct 4 ms 9820 KB Output is correct
19 Correct 5 ms 9952 KB Output is correct
20 Correct 5 ms 9820 KB Output is correct
21 Correct 4 ms 9820 KB Output is correct
22 Correct 4 ms 9816 KB Output is correct

Subtask #2
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 9820 KB Output is correct
2 Correct 4 ms 9820 KB Output is correct
3 Correct 4 ms 9820 KB Output is correct
4 Correct 4 ms 9816 KB Output is correct
5 Correct 4 ms 9820 KB Output is correct
6 Correct 5 ms 9820 KB Output is correct
7 Correct 4 ms 9820 KB Output is correct
8 Correct 4 ms 9784 KB Output is correct
9 Correct 5 ms 9820 KB Output is correct
10 Correct 5 ms 9820 KB Output is correct
11 Correct 4 ms 9820 KB Output is correct
12 Correct 5 ms 9820 KB Output is correct
13 Correct 4 ms 9872 KB Output is correct
14 Correct 4 ms 9820 KB Output is correct
15 Correct 5 ms 9820 KB Output is correct
16 Correct 4 ms 9820 KB Output is correct
17 Correct 5 ms 9820 KB Output is correct
18 Correct 4 ms 9820 KB Output is correct
19 Correct 5 ms 9952 KB Output is correct
20 Correct 5 ms 9820 KB Output is correct
21 Correct 4 ms 9820 KB Output is correct
22 Correct 4 ms 9816 KB Output is correct
23 Correct 5 ms 10332 KB Output is correct
24 Correct 6 ms 10332 KB Output is correct
25 Correct 5 ms 10332 KB Output is correct
26 Correct 7 ms 10332 KB Output is correct
27 Correct 5 ms 10328 KB Output is correct
28 Correct 6 ms 10332 KB Output is correct
29 Correct 5 ms 10332 KB Output is correct
30 Correct 6 ms 10480 KB Output is correct
31 Correct 5 ms 10420 KB Output is correct
32 Correct 5 ms 10588 KB Output is correct
33 Correct 6 ms 10588 KB Output is correct
34 Correct 5 ms 10584 KB Output is correct
35 Correct 5 ms 10588 KB Output is correct
36 Correct 5 ms 10656 KB Output is correct
37 Correct 5 ms 10588 KB Output is correct
38 Correct 5 ms 10588 KB Output is correct
39 Correct 6 ms 10336 KB Output is correct
40 Correct 5 ms 10588 KB Output is correct
41 Correct 6 ms 10584 KB Output is correct
42 Correct 5 ms 10332 KB Output is correct
43 Correct 5 ms 10648 KB Output is correct
44 Correct 5 ms 10332 KB Output is correct

Subtask #3
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 9820 KB Output is correct
2 Correct 4 ms 9820 KB Output is correct
3 Correct 4 ms 9820 KB Output is correct
4 Correct 4 ms 9816 KB Output is correct
5 Correct 4 ms 9820 KB Output is correct
6 Correct 5 ms 9820 KB Output is correct
7 Correct 4 ms 9820 KB Output is correct
8 Correct 4 ms 9784 KB Output is correct
9 Correct 5 ms 9820 KB Output is correct
10 Correct 5 ms 9820 KB Output is correct
11 Correct 4 ms 9820 KB Output is correct
12 Correct 5 ms 9820 KB Output is correct
13 Correct 4 ms 9872 KB Output is correct
14 Correct 4 ms 9820 KB Output is correct
15 Correct 5 ms 9820 KB Output is correct
16 Correct 4 ms 9820 KB Output is correct
17 Correct 5 ms 9820 KB Output is correct
18 Correct 4 ms 9820 KB Output is correct
19 Correct 5 ms 9952 KB Output is correct
20 Correct 5 ms 9820 KB Output is correct
21 Correct 4 ms 9820 KB Output is correct
22 Correct 4 ms 9816 KB Output is correct
23 Correct 5 ms 10332 KB Output is correct
24 Correct 6 ms 10332 KB Output is correct
25 Correct 5 ms 10332 KB Output is correct
26 Correct 7 ms 10332 KB Output is correct
27 Correct 5 ms 10328 KB Output is correct
28 Correct 6 ms 10332 KB Output is correct
29 Correct 5 ms 10332 KB Output is correct
30 Correct 6 ms 10480 KB Output is correct
31 Correct 5 ms 10420 KB Output is correct
32 Correct 5 ms 10588 KB Output is correct
33 Correct 6 ms 10588 KB Output is correct
34 Correct 5 ms 10584 KB Output is correct
35 Correct 5 ms 10588 KB Output is correct
36 Correct 5 ms 10656 KB Output is correct
37 Correct 5 ms 10588 KB Output is correct
38 Correct 5 ms 10588 KB Output is correct
39 Correct 6 ms 10336 KB Output is correct
40 Correct 5 ms 10588 KB Output is correct
41 Correct 6 ms 10584 KB Output is correct
42 Correct 5 ms 10332 KB Output is correct
43 Correct 5 ms 10648 KB Output is correct
44 Correct 5 ms 10332 KB Output is correct
45 Correct 187 ms 75092 KB Output is correct
46 Correct 179 ms 74388 KB Output is correct
47 Correct 180 ms 73732 KB Output is correct
48 Correct 179 ms 75092 KB Output is correct
49 Correct 175 ms 73300 KB Output is correct
50 Correct 193 ms 73044 KB Output is correct
51 Correct 181 ms 73092 KB Output is correct
52 Correct 182 ms 74772 KB Output is correct
53 Correct 180 ms 74660 KB Output is correct
54 Correct 288 ms 87388 KB Output is correct
55 Correct 272 ms 82576 KB Output is correct
56 Correct 268 ms 79700 KB Output is correct
57 Correct 249 ms 78040 KB Output is correct
58 Correct 207 ms 82516 KB Output is correct
59 Correct 216 ms 82256 KB Output is correct
60 Correct 145 ms 93268 KB Output is correct
61 Correct 170 ms 74580 KB Output is correct
62 Correct 250 ms 87896 KB Output is correct
63 Correct 168 ms 73440 KB Output is correct
64 Correct 164 ms 72272 KB Output is correct
65 Correct 253 ms 88860 KB Output is correct
66 Correct 194 ms 72788 KB Output is correct