oj.uz

답안 #627685

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
627685 2022-08-12T18:38:24 Z 4123xr4323 메기 농장 (IOI22_fish) C++17
100 / 100
 696 ms 31744 KB 
#include <bits/stdc++.h>
#define mp make_pair
#define all(a) a.begin(),a.end()
using namespace std;
using pii = pair <long long, long long>;
constexpr int maxn = 1e5 + 10;
constexpr long long inf = 1e17 + 10;
 
vector <pii> tree (maxn << 2, mp (0, -inf));
vector <pii> A (maxn << 2, mp (-inf, -inf));
 
inline void push (int v, int t_l, int t_r) {
    tree[v].first = max (tree[v].first, A[v].first);
    tree[v].second = max (tree[v].second, A[v].second);
    if (t_l != t_r) {
        A[v << 1].first = max (A[v << 1].first, A[v].first);
        A[v << 1].second = max (A[v << 1].second, A[v].second);
        A[v << 1 | 1].first = max (A[v << 1 | 1].first, A[v].first);
        A[v << 1 | 1].second = max (A[v << 1 | 1].second, A[v].second);
    }
    A[v] = mp (-inf, -inf);
}
 
inline void update (int l, int r, pii x, int v, int t_l, int t_r) {
    push (v, t_l, t_r);
    if (l > t_r || t_l > r) return;
    if (l <= t_l && t_r <= r) {
        A[v] = x;
        push (v, t_l, t_r);
        return;
    }
    int t_m = t_l + t_r >> 1;
    update (l, r, x, v << 1, t_l, t_m);
    update (l, r, x, v << 1 | 1, t_m + 1, t_r);
    tree[v].first = max (tree[v << 1].first, tree[v << 1 | 1].first);
    tree[v].second = max (tree[v << 1].second, tree[v << 1 | 1].second);
}
 
inline pii get (int i, int v, int t_l, int t_r) {
    if (i > t_r || t_l > i) return mp (-inf, -inf);
    push (v, t_l, t_r);
    if (t_l == t_r) return tree[v];
    int t_m = t_l + t_r >> 1;
    return max (get (i, v << 1, t_l, t_m), get (i, v << 1 | 1, t_m + 1, t_r));
}
 
vector <pii> pos [maxn];
long long last = 0;
 
long long max_weights (int N, int M, vector <int> X, vector <int> Y, vector <int> W) {
    for (int i = 0; i < M; ++i) {
        pos[X[i] + 1].push_back (mp (Y[i] + 1, W[i]));
    }
    int n = N;
    for (int i = 1; i <= n; ++i) sort (all (pos[i]));
    for (int i = 1; i <= n; ++i) {
        for (pii j : pos[i]) {
            long long am = get (j.first, 1, 0, n + 1).first + j.second;
            update (j.first + 1, n + 1, mp (am, -inf), 1, 0, n + 1);
        }
        for (int _j = (int) pos[i].size () - 1; _j >= 0; --_j) {
            pii j = pos[i][_j];
            long long am = get (j.first, 1, 0, n + 1).second + j.second;
            update (0, j.first - 1, mp (-inf, am), 1, 0, n + 1);
        }
        long long to = get (n + 1, 1, 0, n + 1).first, from = get (0, 1, 0, n + 1).second;
        update (0, n + 1, mp (from, last), 1, 0, n + 1);
        last = max (to, from);
    }
    return get (0, 1, 0, n + 1).second;
}

Compilation message

fish.cpp: In function 'void update(int, int, pii, int, int, int)':
fish.cpp:32:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   32 |     int t_m = t_l + t_r >> 1;
      |               ~~~~^~~~~
fish.cpp: In function 'pii get(int, int, int, int)':
fish.cpp:43:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   43 |     int t_m = t_l + t_r >> 1;
      |               ~~~~^~~~~

Subtask #1
3.0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 185 ms 19188 KB Output is correct
2 Correct 222 ms 20200 KB Output is correct
3 Correct 53 ms 15176 KB Output is correct
4 Correct 52 ms 15164 KB Output is correct
5 Correct 549 ms 28220 KB Output is correct
6 Correct 669 ms 30712 KB Output is correct

Subtask #2
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 15188 KB Output is correct
2 Correct 293 ms 22136 KB Output is correct
3 Correct 395 ms 23768 KB Output is correct
4 Correct 176 ms 19648 KB Output is correct
5 Correct 212 ms 20196 KB Output is correct
6 Correct 7 ms 15188 KB Output is correct
7 Correct 7 ms 15188 KB Output is correct
8 Correct 7 ms 15184 KB Output is correct
9 Correct 7 ms 15188 KB Output is correct
10 Correct 53 ms 15168 KB Output is correct
11 Correct 51 ms 15188 KB Output is correct
12 Correct 175 ms 20056 KB Output is correct
13 Correct 211 ms 20396 KB Output is correct
14 Correct 189 ms 19512 KB Output is correct
15 Correct 206 ms 19764 KB Output is correct
16 Correct 175 ms 19520 KB Output is correct
17 Correct 197 ms 19736 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 65 ms 15432 KB Output is correct
2 Correct 49 ms 15172 KB Output is correct
3 Correct 154 ms 18124 KB Output is correct
4 Correct 113 ms 17156 KB Output is correct
5 Correct 247 ms 20652 KB Output is correct
6 Correct 229 ms 20592 KB Output is correct
7 Correct 249 ms 20652 KB Output is correct
8 Correct 251 ms 20652 KB Output is correct

Subtask #4
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 15060 KB Output is correct
2 Correct 7 ms 15164 KB Output is correct
3 Correct 8 ms 15188 KB Output is correct
4 Correct 9 ms 15160 KB Output is correct
5 Correct 9 ms 15188 KB Output is correct
6 Correct 9 ms 15188 KB Output is correct
7 Correct 8 ms 15188 KB Output is correct
8 Correct 7 ms 15124 KB Output is correct
9 Correct 8 ms 15208 KB Output is correct
10 Correct 11 ms 15188 KB Output is correct
11 Correct 8 ms 15188 KB Output is correct
12 Correct 12 ms 15188 KB Output is correct
13 Correct 10 ms 15188 KB Output is correct
14 Correct 9 ms 15188 KB Output is correct

Subtask #5
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 15060 KB Output is correct
2 Correct 7 ms 15164 KB Output is correct
3 Correct 8 ms 15188 KB Output is correct
4 Correct 9 ms 15160 KB Output is correct
5 Correct 9 ms 15188 KB Output is correct
6 Correct 9 ms 15188 KB Output is correct
7 Correct 8 ms 15188 KB Output is correct
8 Correct 7 ms 15124 KB Output is correct
9 Correct 8 ms 15208 KB Output is correct
10 Correct 11 ms 15188 KB Output is correct
11 Correct 8 ms 15188 KB Output is correct
12 Correct 12 ms 15188 KB Output is correct
13 Correct 10 ms 15188 KB Output is correct
14 Correct 9 ms 15188 KB Output is correct
15 Correct 8 ms 15104 KB Output is correct
16 Correct 9 ms 15212 KB Output is correct
17 Correct 51 ms 17132 KB Output is correct
18 Correct 50 ms 17760 KB Output is correct
19 Correct 47 ms 17512 KB Output is correct
20 Correct 47 ms 17508 KB Output is correct
21 Correct 48 ms 17504 KB Output is correct
22 Correct 97 ms 20044 KB Output is correct
23 Correct 17 ms 15720 KB Output is correct
24 Correct 48 ms 17064 KB Output is correct
25 Correct 9 ms 15176 KB Output is correct
26 Correct 18 ms 15688 KB Output is correct

Subtask #6
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 15060 KB Output is correct
2 Correct 7 ms 15164 KB Output is correct
3 Correct 8 ms 15188 KB Output is correct
4 Correct 9 ms 15160 KB Output is correct
5 Correct 9 ms 15188 KB Output is correct
6 Correct 9 ms 15188 KB Output is correct
7 Correct 8 ms 15188 KB Output is correct
8 Correct 7 ms 15124 KB Output is correct
9 Correct 8 ms 15208 KB Output is correct
10 Correct 11 ms 15188 KB Output is correct
11 Correct 8 ms 15188 KB Output is correct
12 Correct 12 ms 15188 KB Output is correct
13 Correct 10 ms 15188 KB Output is correct
14 Correct 9 ms 15188 KB Output is correct
15 Correct 8 ms 15104 KB Output is correct
16 Correct 9 ms 15212 KB Output is correct
17 Correct 51 ms 17132 KB Output is correct
18 Correct 50 ms 17760 KB Output is correct
19 Correct 47 ms 17512 KB Output is correct
20 Correct 47 ms 17508 KB Output is correct
21 Correct 48 ms 17504 KB Output is correct
22 Correct 97 ms 20044 KB Output is correct
23 Correct 17 ms 15720 KB Output is correct
24 Correct 48 ms 17064 KB Output is correct
25 Correct 9 ms 15176 KB Output is correct
26 Correct 18 ms 15688 KB Output is correct
27 Correct 14 ms 15368 KB Output is correct
28 Correct 242 ms 26900 KB Output is correct
29 Correct 377 ms 30116 KB Output is correct
30 Correct 420 ms 29656 KB Output is correct
31 Correct 393 ms 29688 KB Output is correct
32 Correct 304 ms 31744 KB Output is correct
33 Correct 399 ms 29668 KB Output is correct
34 Correct 390 ms 29652 KB Output is correct
35 Correct 148 ms 21788 KB Output is correct
36 Correct 399 ms 31584 KB Output is correct

Subtask #7
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 65 ms 15432 KB Output is correct
2 Correct 49 ms 15172 KB Output is correct
3 Correct 154 ms 18124 KB Output is correct
4 Correct 113 ms 17156 KB Output is correct
5 Correct 247 ms 20652 KB Output is correct
6 Correct 229 ms 20592 KB Output is correct
7 Correct 249 ms 20652 KB Output is correct
8 Correct 251 ms 20652 KB Output is correct
9 Correct 223 ms 20652 KB Output is correct
10 Correct 238 ms 20044 KB Output is correct
11 Correct 412 ms 25064 KB Output is correct
12 Correct 7 ms 15188 KB Output is correct
13 Correct 7 ms 15132 KB Output is correct
14 Correct 8 ms 15164 KB Output is correct
15 Correct 7 ms 15116 KB Output is correct
16 Correct 7 ms 15188 KB Output is correct
17 Correct 7 ms 15060 KB Output is correct
18 Correct 58 ms 15060 KB Output is correct
19 Correct 58 ms 15168 KB Output is correct
20 Correct 52 ms 15188 KB Output is correct
21 Correct 55 ms 15176 KB Output is correct
22 Correct 238 ms 20464 KB Output is correct
23 Correct 442 ms 25416 KB Output is correct
24 Correct 383 ms 25612 KB Output is correct

Subtask #8
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 185 ms 19188 KB Output is correct
2 Correct 222 ms 20200 KB Output is correct
3 Correct 53 ms 15176 KB Output is correct
4 Correct 52 ms 15164 KB Output is correct
5 Correct 549 ms 28220 KB Output is correct
6 Correct 669 ms 30712 KB Output is correct
7 Correct 7 ms 15188 KB Output is correct
8 Correct 293 ms 22136 KB Output is correct
9 Correct 395 ms 23768 KB Output is correct
10 Correct 176 ms 19648 KB Output is correct
11 Correct 212 ms 20196 KB Output is correct
12 Correct 7 ms 15188 KB Output is correct
13 Correct 7 ms 15188 KB Output is correct
14 Correct 7 ms 15184 KB Output is correct
15 Correct 7 ms 15188 KB Output is correct
16 Correct 53 ms 15168 KB Output is correct
17 Correct 51 ms 15188 KB Output is correct
18 Correct 175 ms 20056 KB Output is correct
19 Correct 211 ms 20396 KB Output is correct
20 Correct 189 ms 19512 KB Output is correct
21 Correct 206 ms 19764 KB Output is correct
22 Correct 175 ms 19520 KB Output is correct
23 Correct 197 ms 19736 KB Output is correct
24 Correct 65 ms 15432 KB Output is correct
25 Correct 49 ms 15172 KB Output is correct
26 Correct 154 ms 18124 KB Output is correct
27 Correct 113 ms 17156 KB Output is correct
28 Correct 247 ms 20652 KB Output is correct
29 Correct 229 ms 20592 KB Output is correct
30 Correct 249 ms 20652 KB Output is correct
31 Correct 251 ms 20652 KB Output is correct
32 Correct 11 ms 15060 KB Output is correct
33 Correct 7 ms 15164 KB Output is correct
34 Correct 8 ms 15188 KB Output is correct
35 Correct 9 ms 15160 KB Output is correct
36 Correct 9 ms 15188 KB Output is correct
37 Correct 9 ms 15188 KB Output is correct
38 Correct 8 ms 15188 KB Output is correct
39 Correct 7 ms 15124 KB Output is correct
40 Correct 8 ms 15208 KB Output is correct
41 Correct 11 ms 15188 KB Output is correct
42 Correct 8 ms 15188 KB Output is correct
43 Correct 12 ms 15188 KB Output is correct
44 Correct 10 ms 15188 KB Output is correct
45 Correct 9 ms 15188 KB Output is correct
46 Correct 8 ms 15104 KB Output is correct
47 Correct 9 ms 15212 KB Output is correct
48 Correct 51 ms 17132 KB Output is correct
49 Correct 50 ms 17760 KB Output is correct
50 Correct 47 ms 17512 KB Output is correct
51 Correct 47 ms 17508 KB Output is correct
52 Correct 48 ms 17504 KB Output is correct
53 Correct 97 ms 20044 KB Output is correct
54 Correct 17 ms 15720 KB Output is correct
55 Correct 48 ms 17064 KB Output is correct
56 Correct 9 ms 15176 KB Output is correct
57 Correct 18 ms 15688 KB Output is correct
58 Correct 14 ms 15368 KB Output is correct
59 Correct 242 ms 26900 KB Output is correct
60 Correct 377 ms 30116 KB Output is correct
61 Correct 420 ms 29656 KB Output is correct
62 Correct 393 ms 29688 KB Output is correct
63 Correct 304 ms 31744 KB Output is correct
64 Correct 399 ms 29668 KB Output is correct
65 Correct 390 ms 29652 KB Output is correct
66 Correct 148 ms 21788 KB Output is correct
67 Correct 399 ms 31584 KB Output is correct
68 Correct 223 ms 20652 KB Output is correct
69 Correct 238 ms 20044 KB Output is correct
70 Correct 412 ms 25064 KB Output is correct
71 Correct 7 ms 15188 KB Output is correct
72 Correct 7 ms 15132 KB Output is correct
73 Correct 8 ms 15164 KB Output is correct
74 Correct 7 ms 15116 KB Output is correct
75 Correct 7 ms 15188 KB Output is correct
76 Correct 7 ms 15060 KB Output is correct
77 Correct 58 ms 15060 KB Output is correct
78 Correct 58 ms 15168 KB Output is correct
79 Correct 52 ms 15188 KB Output is correct
80 Correct 55 ms 15176 KB Output is correct
81 Correct 238 ms 20464 KB Output is correct
82 Correct 442 ms 25416 KB Output is correct
83 Correct 383 ms 25612 KB Output is correct
84 Correct 550 ms 28440 KB Output is correct
85 Correct 573 ms 28640 KB Output is correct
86 Correct 666 ms 30584 KB Output is correct
87 Correct 625 ms 30520 KB Output is correct
88 Correct 7 ms 15188 KB Output is correct
89 Correct 696 ms 30640 KB Output is correct
90 Correct 565 ms 30412 KB Output is correct
91 Correct 553 ms 30312 KB Output is correct