oj.uz

답안 #888637

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
888637 2023-12-18T04:49:23 Z Pring 별자리 3 (JOI20_constellation3) C++14
100 / 100
 349 ms 68392 KB 
#include <bits/stdc++.h>
using namespace std;

#ifdef MIKU
#define debug(x...) cout << '[' << #x << "] : ", dout(x)
void dout() { cout << endl; }
template <typename T, typename ...U>
void dout(T t, U ...u) { cout << t << (sizeof...(u) ? ", " : ""); dout(u...); }
#else
#define debug(...) 39
#endif

#define int long long
#define fs first
#define sc second
#define mp make_pair
#define FOR(i, j, k) for(int i = j, Z = k; i < k; i++)
typedef long long ll;
typedef pair<int, int> pii;

const int MXN = 200005;
int n, m, a[MXN], px[MXN], py[MXN], pc[MXN];
vector<int> v[MXN];

struct SMG {
    int val[MXN * 4];
    void build(int id, int l, int r) {
        if (l + 1 == r) {
            val[id] = l;
            return;
        }
        int mid = (l + r) >> 1;
        build(id * 2 + 1, l, mid);
        build(id * 2 + 2, mid, r);
        val[id] = (a[val[id * 2 + 1]] >= a[val[id * 2 + 2]] ? val[id * 2 + 1] : val[id * 2 + 2]);
    }
    int query(int id, int l, int r, int _l, int _r) {
        if (_r <= l || r <= _l) return 0;
        if (_l <= l && r <= _r) return val[id];
        int mid = (l + r) >> 1;
        int vl = query(id * 2 + 1, l, mid, _l, _r), vr = query(id * 2 + 2, mid, r, _l, _r);
        return (a[vl] >= a[vr] ? vl : vr);
    }
    void DFS(int id, int l, int r) {
        debug(l, r, val[id]);
        if (l + 1 == r) return;
        int mid = (l + r) >> 1;
        DFS(id * 2 + 1, l, mid);
        DFS(id * 2 + 2, mid, r);
    }
} smg;

struct BIT {
    int n, val[MXN];
    void init(int _n) {
        n = _n;
        fill(val + 1, val + n + 1, 0);
    }
    void modify(int id, int v) {
        for (; id <= n; id += (id & -id)) val[id] += v;
    }
    int query(int id) {
        int ans = 0;
        for (; id > 0; id -= (id & -id)) ans += val[id];
        return ans;
    }
} B;

namespace CT {
    int rt, flc = 1;
    pii ct[MXN], fl[MXN];
    // int pos[MXN];

    int build(int l, int r) {
        if (l >= r) return -1;
        int rt = smg.query(0, 0, n + 1, l, r);
        ct[rt].fs = build(l, rt);
        ct[rt].sc = build(rt + 1, r);
        return rt;
    }

    void FLAT(int id) {
        fl[id].fs = flc++;
        if (ct[id].fs != -1) FLAT(ct[id].fs);
        if (ct[id].sc != -1) FLAT(ct[id].sc);
        fl[id].sc = flc;
    }

    void DFS(int id, ll &x) {
        if (ct[id].fs != -1) DFS(ct[id].fs, x);
        if (ct[id].sc != -1) DFS(ct[id].sc, x);
        int ans = 0;
        for (auto &i : v[id]) {
            // debug(pc[i], px[i], B.query(fl[px[i]].fs));
            int now = pc[i];
            now -= B.query(fl[px[i]].fs);
            ans = max(ans, now);
        }
        debug(id, ans);
        // debug(fl[id].fs, fl[id].sc);
        x -= ans;
        B.modify(fl[id].fs, ans);
        B.modify(fl[id].sc, -ans);
        // FOR(i, 1, n + 1) cout << B.val[i] << ' ';
        // cout << endl;
    }
}

namespace PUT {
    set<int> S;
    vector<pii> op;

    void DO() {
        S.insert(0);
        S.insert(n + 1);
        FOR(i, 1, n + 1) op.push_back(mp(a[i], i));
        FOR(i, 1, m + 1) op.push_back(mp(py[i], -i));
        sort(op.begin(), op.end(), greater<pii>());
        for (auto &i : op) {
            int id = abs(i.sc);
            if (i.sc > 0) S.insert(id);
            else {
                auto itr = S.upper_bound(px[id]);
                auto itl = prev(itr);
                v[smg.query(0, 0, n + 1, *itl + 1, *itr)].push_back(id);
            }
        }
    }
}

void miku() {
    cin >> n;
    FOR(i, 1, n + 1) cin >> a[i];
    cin >> m;
    FOR(i, 1, m + 1) cin >> px[i] >> py[i] >> pc[i];
    smg.build(0, 0, n + 1);
    CT::rt = smg.query(0, 0, n + 1, 1, n + 1);
    CT::build(1, n + 1);
    CT::FLAT(CT::rt);
    // FOR(i, 1, n + 1) debug(CT::fl[i].fs, CT::fl[i].sc);
    PUT::DO();
    // return;
    B.init(n);
    ll ans = 0;
    CT::DFS(CT::rt, ans);
    FOR(i, 1, m + 1) ans += pc[i];
    // FOR(i, 1, n + 1) ans -= B.query(i);
    cout << ans << '\n';
}

int32_t main() {
    cin.tie(0) -> sync_with_stdio(false);
    miku();
    return 0;
}

Compilation message

constellation3.cpp: In member function 'void SMG::DFS(long long int, long long int, long long int)':
constellation3.cpp:10:20: warning: statement has no effect [-Wunused-value]
   10 | #define debug(...) 39
      |                    ^~
constellation3.cpp:45:9: note: in expansion of macro 'debug'
   45 |         debug(l, r, val[id]);
      |         ^~~~~
constellation3.cpp: In function 'void CT::DFS(long long int, ll&)':
constellation3.cpp:10:20: warning: statement has no effect [-Wunused-value]
   10 | #define debug(...) 39
      |                    ^~
constellation3.cpp:99:9: note: in expansion of macro 'debug'
   99 |         debug(id, ans);
      |         ^~~~~
constellation3.cpp: In function 'void PUT::DO()':
constellation3.cpp:17:37: warning: unused variable 'Z' [-Wunused-variable]
   17 | #define FOR(i, j, k) for(int i = j, Z = k; i < k; i++)
      |                                     ^
constellation3.cpp:116:9: note: in expansion of macro 'FOR'
  116 |         FOR(i, 1, n + 1) op.push_back(mp(a[i], i));
      |         ^~~
constellation3.cpp:17:37: warning: unused variable 'Z' [-Wunused-variable]
   17 | #define FOR(i, j, k) for(int i = j, Z = k; i < k; i++)
      |                                     ^
constellation3.cpp:117:9: note: in expansion of macro 'FOR'
  117 |         FOR(i, 1, m + 1) op.push_back(mp(py[i], -i));
      |         ^~~
constellation3.cpp: In function 'void miku()':
constellation3.cpp:17:37: warning: unused variable 'Z' [-Wunused-variable]
   17 | #define FOR(i, j, k) for(int i = j, Z = k; i < k; i++)
      |                                     ^
constellation3.cpp:133:5: note: in expansion of macro 'FOR'
  133 |     FOR(i, 1, n + 1) cin >> a[i];
      |     ^~~
constellation3.cpp:17:37: warning: unused variable 'Z' [-Wunused-variable]
   17 | #define FOR(i, j, k) for(int i = j, Z = k; i < k; i++)
      |                                     ^
constellation3.cpp:135:5: note: in expansion of macro 'FOR'
  135 |     FOR(i, 1, m + 1) cin >> px[i] >> py[i] >> pc[i];
      |     ^~~
constellation3.cpp:17:37: warning: unused variable 'Z' [-Wunused-variable]
   17 | #define FOR(i, j, k) for(int i = j, Z = k; i < k; i++)
      |                                     ^
constellation3.cpp:146:5: note: in expansion of macro 'FOR'
  146 |     FOR(i, 1, m + 1) ans += pc[i];
      |     ^~~

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 18776 KB Output is correct
2 Correct 3 ms 18780 KB Output is correct
3 Correct 3 ms 18780 KB Output is correct
4 Correct 3 ms 18780 KB Output is correct
5 Correct 3 ms 18804 KB Output is correct
6 Correct 3 ms 18780 KB Output is correct
7 Correct 3 ms 18780 KB Output is correct
8 Correct 3 ms 18948 KB Output is correct
9 Correct 3 ms 18780 KB Output is correct
10 Correct 3 ms 18912 KB Output is correct
11 Correct 3 ms 18876 KB Output is correct
12 Correct 3 ms 18780 KB Output is correct
13 Correct 3 ms 18980 KB Output is correct
14 Correct 3 ms 19032 KB Output is correct
15 Correct 3 ms 18984 KB Output is correct
16 Correct 3 ms 18780 KB Output is correct
17 Correct 3 ms 18780 KB Output is correct
18 Correct 3 ms 18920 KB Output is correct
19 Correct 3 ms 18780 KB Output is correct
20 Correct 3 ms 18780 KB Output is correct
21 Correct 3 ms 18780 KB Output is correct
22 Correct 3 ms 18780 KB Output is correct

Subtask #2
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 18776 KB Output is correct
2 Correct 3 ms 18780 KB Output is correct
3 Correct 3 ms 18780 KB Output is correct
4 Correct 3 ms 18780 KB Output is correct
5 Correct 3 ms 18804 KB Output is correct
6 Correct 3 ms 18780 KB Output is correct
7 Correct 3 ms 18780 KB Output is correct
8 Correct 3 ms 18948 KB Output is correct
9 Correct 3 ms 18780 KB Output is correct
10 Correct 3 ms 18912 KB Output is correct
11 Correct 3 ms 18876 KB Output is correct
12 Correct 3 ms 18780 KB Output is correct
13 Correct 3 ms 18980 KB Output is correct
14 Correct 3 ms 19032 KB Output is correct
15 Correct 3 ms 18984 KB Output is correct
16 Correct 3 ms 18780 KB Output is correct
17 Correct 3 ms 18780 KB Output is correct
18 Correct 3 ms 18920 KB Output is correct
19 Correct 3 ms 18780 KB Output is correct
20 Correct 3 ms 18780 KB Output is correct
21 Correct 3 ms 18780 KB Output is correct
22 Correct 3 ms 18780 KB Output is correct
23 Correct 4 ms 19048 KB Output is correct
24 Correct 4 ms 19036 KB Output is correct
25 Correct 4 ms 19036 KB Output is correct
26 Correct 4 ms 19136 KB Output is correct
27 Correct 4 ms 19036 KB Output is correct
28 Correct 4 ms 19036 KB Output is correct
29 Correct 5 ms 19192 KB Output is correct
30 Correct 5 ms 19036 KB Output is correct
31 Correct 5 ms 19036 KB Output is correct
32 Correct 5 ms 19176 KB Output is correct
33 Correct 5 ms 19224 KB Output is correct
34 Correct 4 ms 19032 KB Output is correct
35 Correct 4 ms 19036 KB Output is correct
36 Correct 4 ms 19276 KB Output is correct
37 Correct 4 ms 19292 KB Output is correct
38 Correct 4 ms 19292 KB Output is correct
39 Correct 5 ms 19176 KB Output is correct
40 Correct 5 ms 19292 KB Output is correct
41 Correct 6 ms 19036 KB Output is correct
42 Correct 4 ms 19036 KB Output is correct
43 Correct 5 ms 19292 KB Output is correct
44 Correct 4 ms 19036 KB Output is correct

Subtask #3
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 18776 KB Output is correct
2 Correct 3 ms 18780 KB Output is correct
3 Correct 3 ms 18780 KB Output is correct
4 Correct 3 ms 18780 KB Output is correct
5 Correct 3 ms 18804 KB Output is correct
6 Correct 3 ms 18780 KB Output is correct
7 Correct 3 ms 18780 KB Output is correct
8 Correct 3 ms 18948 KB Output is correct
9 Correct 3 ms 18780 KB Output is correct
10 Correct 3 ms 18912 KB Output is correct
11 Correct 3 ms 18876 KB Output is correct
12 Correct 3 ms 18780 KB Output is correct
13 Correct 3 ms 18980 KB Output is correct
14 Correct 3 ms 19032 KB Output is correct
15 Correct 3 ms 18984 KB Output is correct
16 Correct 3 ms 18780 KB Output is correct
17 Correct 3 ms 18780 KB Output is correct
18 Correct 3 ms 18920 KB Output is correct
19 Correct 3 ms 18780 KB Output is correct
20 Correct 3 ms 18780 KB Output is correct
21 Correct 3 ms 18780 KB Output is correct
22 Correct 3 ms 18780 KB Output is correct
23 Correct 4 ms 19048 KB Output is correct
24 Correct 4 ms 19036 KB Output is correct
25 Correct 4 ms 19036 KB Output is correct
26 Correct 4 ms 19136 KB Output is correct
27 Correct 4 ms 19036 KB Output is correct
28 Correct 4 ms 19036 KB Output is correct
29 Correct 5 ms 19192 KB Output is correct
30 Correct 5 ms 19036 KB Output is correct
31 Correct 5 ms 19036 KB Output is correct
32 Correct 5 ms 19176 KB Output is correct
33 Correct 5 ms 19224 KB Output is correct
34 Correct 4 ms 19032 KB Output is correct
35 Correct 4 ms 19036 KB Output is correct
36 Correct 4 ms 19276 KB Output is correct
37 Correct 4 ms 19292 KB Output is correct
38 Correct 4 ms 19292 KB Output is correct
39 Correct 5 ms 19176 KB Output is correct
40 Correct 5 ms 19292 KB Output is correct
41 Correct 6 ms 19036 KB Output is correct
42 Correct 4 ms 19036 KB Output is correct
43 Correct 5 ms 19292 KB Output is correct
44 Correct 4 ms 19036 KB Output is correct
45 Correct 349 ms 49880 KB Output is correct
46 Correct 309 ms 50904 KB Output is correct
47 Correct 328 ms 50100 KB Output is correct
48 Correct 342 ms 49904 KB Output is correct
49 Correct 333 ms 50100 KB Output is correct
50 Correct 308 ms 51124 KB Output is correct
51 Correct 337 ms 51096 KB Output is correct
52 Correct 341 ms 51520 KB Output is correct
53 Correct 320 ms 51636 KB Output is correct
54 Correct 247 ms 63792 KB Output is correct
55 Correct 249 ms 60160 KB Output is correct
56 Correct 245 ms 56492 KB Output is correct
57 Correct 234 ms 55732 KB Output is correct
58 Correct 195 ms 58348 KB Output is correct
59 Correct 187 ms 57012 KB Output is correct
60 Correct 202 ms 68392 KB Output is correct
61 Correct 236 ms 49712 KB Output is correct
62 Correct 251 ms 65660 KB Output is correct
63 Correct 216 ms 49440 KB Output is correct
64 Correct 227 ms 49492 KB Output is correct
65 Correct 248 ms 65040 KB Output is correct
66 Correct 218 ms 50176 KB Output is correct