oj.uz

답안 #689669

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
689669 2023-01-29T05:15:42 Z lohacho 메기 농장 (IOI22_fish) C++17
100 / 100
 623 ms 67788 KB 
#include "fish.h"

#include <bits/stdc++.h>

using namespace std;

struct Seg{
    long long n, st;

    vector<long long> tr, lazy;

    Seg(long long m):n(m + 4){
        tr.resize(n * 4 * 3, -(long long)1e18);
        lazy.resize(n * 4 * 3, -(long long)1e18);
        st = m;
    }

    void update(int x, int s, int e){
        tr[x] = max(tr[x], lazy[x]);
        if(s < e){
            lazy[x * 2] = max(lazy[x * 2], lazy[x]);
            lazy[x * 2 + 1] = max(lazy[x * 2 + 1], lazy[x]);
        }
        lazy[x] = -(long long)1e18;
    }

    void push(long long x, long long s, long long e, int ps, int pe, long long val){
        if(pe < s || ps > e){
            return;
        }
        if(ps <= s && pe >= e){
            lazy[x] = max(lazy[x], val);
            update(x, s, e);
            return;
        }

        update(x, s, e);

        int m = s + e >> 1;
        push(x * 2, s, m, ps, pe, val);
        push(x * 2 + 1, m + 1, e, ps, pe, val);

        tr[x] = max(tr[x * 2], tr[x * 2 + 1]);
    }

    long long get(long long x, long long s, long long e, long long fs, long long fe){
        if(fe < s || fs > e || fs > fe) return -(long long)1e18;
        update(x, s, e);
        if(fs <= s && fe >= e){
            return tr[x];
        }

        long long m = s + e >> 1;

        return max(get(x * 2, s, m, fs, fe), get(x * 2 + 1, m + 1, e, fs, fe));
    }
};

long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y,
                      std::vector<int> W) {

    vector<vector<long long>> a(M);
    for(long long i = 0; i < M; ++i){
        a[i] = {X[i], Y[i] + 1, W[i]};
    }

    sort(a.begin(), a.end());

    Seg dp1(N), dp2(N);

    int mx = N * 3 + 1;
    //cout << mx << endl;
    dp1.push(1, 0, mx, 0, mx, 0);

    long long ans = 0;

    for(long long i = 0, j = 0; i < N; ++i){
        long long hval = dp1.get(1, 0, mx, 0, mx);

        dp1.push(1, 0, mx, 0, mx, dp2.get(1, 0, mx, 0, mx));

        long long l = j, r = j - 1;
        while(r + 1 < M && a[r + 1][0] == i){
            ++r;
        }

        //cout << i << ' ' << l << ' ' << r << endl;

        dp1.st -= 1;
        dp2.st += 1;
        for(long long x = l; x <= r; ++x){
            dp1.push(1, 0, mx, a[x][1] + dp1.st, mx, dp1.get(1, 0, mx, a[x][1] + dp1.st, a[x][1] + dp1.st) + a[x][2]);
        }
        for(long long x = r; x >= l; --x){
            //cout << a[x][1] << ' ' << dp2.st << endl;
            dp2.push(1, 0, mx, 0, a[x][1] + dp2.st, dp2.get(1, 0, mx, a[x][1] + dp2.st, a[x][1] + dp2.st) + a[x][2]);
        }

        dp2.push(1, 0, mx, 0, mx, hval);

        j = r + 1;

        // for(int i = 1; i <= N; ++i){
        //     cout << dp1.get(1, 0, mx, i + dp1.st, i + dp1.st) << ' ';
        // }
        // cout << endl;

        // for(int i = 1; i <= N; ++i){
        //     cout << dp2.get(1, 0, mx, i + dp1.st, i + dp1.st) << ' ';
        // }
        // cout << endl;
        ans = max(ans, dp2.get(1, 0, mx, 0, mx));
        if(i < N - 1){
            ans = max(ans, dp1.get(1, 0, mx, 0, mx));
        }
    }

    return ans;
}

Compilation message

fish.cpp: In member function 'void Seg::push(long long int, long long int, long long int, int, int, long long int)':
fish.cpp:39:19: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   39 |         int m = s + e >> 1;
      |                 ~~^~~
fish.cpp: In member function 'long long int Seg::get(long long int, long long int, long long int, long long int, long long int)':
fish.cpp:53:25: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   53 |         long long m = s + e >> 1;
      |                       ~~^~~

Subtask #1
3.0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 144 ms 40396 KB Output is correct
2 Correct 173 ms 45704 KB Output is correct
3 Correct 21 ms 37844 KB Output is correct
4 Correct 20 ms 37880 KB Output is correct
5 Correct 557 ms 61388 KB Output is correct
6 Correct 600 ms 61408 KB Output is correct

Subtask #2
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 286 ms 46724 KB Output is correct
3 Correct 356 ms 53540 KB Output is correct
4 Correct 146 ms 40404 KB Output is correct
5 Correct 173 ms 45784 KB Output is correct
6 Correct 1 ms 288 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 20 ms 37844 KB Output is correct
11 Correct 21 ms 37808 KB Output is correct
12 Correct 139 ms 40400 KB Output is correct
13 Correct 171 ms 45692 KB Output is correct
14 Correct 142 ms 40588 KB Output is correct
15 Correct 160 ms 44848 KB Output is correct
16 Correct 139 ms 40492 KB Output is correct
17 Correct 154 ms 44784 KB Output is correct

Subtask #3
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 19 ms 37844 KB Output is correct
2 Correct 20 ms 37784 KB Output is correct
3 Correct 101 ms 38320 KB Output is correct
4 Correct 73 ms 41064 KB Output is correct
5 Correct 168 ms 45992 KB Output is correct
6 Correct 164 ms 45892 KB Output is correct
7 Correct 174 ms 46028 KB Output is correct
8 Correct 169 ms 45908 KB Output is correct

Subtask #4
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 3 ms 596 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 2 ms 468 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 436 KB Output is correct

Subtask #5
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 3 ms 596 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 2 ms 468 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 436 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 2 ms 468 KB Output is correct
17 Correct 44 ms 4668 KB Output is correct
18 Correct 44 ms 4564 KB Output is correct
19 Correct 44 ms 4652 KB Output is correct
20 Correct 44 ms 4692 KB Output is correct
21 Correct 43 ms 4656 KB Output is correct
22 Correct 90 ms 8856 KB Output is correct
23 Correct 9 ms 1236 KB Output is correct
24 Correct 30 ms 3372 KB Output is correct
25 Correct 2 ms 468 KB Output is correct
26 Correct 8 ms 1108 KB Output is correct

Subtask #6
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 3 ms 596 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 2 ms 468 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 436 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 2 ms 468 KB Output is correct
17 Correct 44 ms 4668 KB Output is correct
18 Correct 44 ms 4564 KB Output is correct
19 Correct 44 ms 4652 KB Output is correct
20 Correct 44 ms 4692 KB Output is correct
21 Correct 43 ms 4656 KB Output is correct
22 Correct 90 ms 8856 KB Output is correct
23 Correct 9 ms 1236 KB Output is correct
24 Correct 30 ms 3372 KB Output is correct
25 Correct 2 ms 468 KB Output is correct
26 Correct 8 ms 1108 KB Output is correct
27 Correct 5 ms 1644 KB Output is correct
28 Correct 252 ms 21212 KB Output is correct
29 Correct 436 ms 30528 KB Output is correct
30 Correct 417 ms 30432 KB Output is correct
31 Correct 436 ms 30540 KB Output is correct
32 Correct 348 ms 29052 KB Output is correct
33 Correct 425 ms 30416 KB Output is correct
34 Correct 425 ms 30420 KB Output is correct
35 Correct 146 ms 12516 KB Output is correct
36 Correct 417 ms 30432 KB Output is correct

Subtask #7
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 19 ms 37844 KB Output is correct
2 Correct 20 ms 37784 KB Output is correct
3 Correct 101 ms 38320 KB Output is correct
4 Correct 73 ms 41064 KB Output is correct
5 Correct 168 ms 45992 KB Output is correct
6 Correct 164 ms 45892 KB Output is correct
7 Correct 174 ms 46028 KB Output is correct
8 Correct 169 ms 45908 KB Output is correct
9 Correct 171 ms 45992 KB Output is correct
10 Correct 152 ms 27080 KB Output is correct
11 Correct 335 ms 53884 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 20 ms 37812 KB Output is correct
19 Correct 19 ms 37844 KB Output is correct
20 Correct 20 ms 37844 KB Output is correct
21 Correct 21 ms 37780 KB Output is correct
22 Correct 206 ms 47684 KB Output is correct
23 Correct 332 ms 57024 KB Output is correct
24 Correct 331 ms 57544 KB Output is correct

Subtask #8
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 144 ms 40396 KB Output is correct
2 Correct 173 ms 45704 KB Output is correct
3 Correct 21 ms 37844 KB Output is correct
4 Correct 20 ms 37880 KB Output is correct
5 Correct 557 ms 61388 KB Output is correct
6 Correct 600 ms 61408 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 286 ms 46724 KB Output is correct
9 Correct 356 ms 53540 KB Output is correct
10 Correct 146 ms 40404 KB Output is correct
11 Correct 173 ms 45784 KB Output is correct
12 Correct 1 ms 288 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 20 ms 37844 KB Output is correct
17 Correct 21 ms 37808 KB Output is correct
18 Correct 139 ms 40400 KB Output is correct
19 Correct 171 ms 45692 KB Output is correct
20 Correct 142 ms 40588 KB Output is correct
21 Correct 160 ms 44848 KB Output is correct
22 Correct 139 ms 40492 KB Output is correct
23 Correct 154 ms 44784 KB Output is correct
24 Correct 19 ms 37844 KB Output is correct
25 Correct 20 ms 37784 KB Output is correct
26 Correct 101 ms 38320 KB Output is correct
27 Correct 73 ms 41064 KB Output is correct
28 Correct 168 ms 45992 KB Output is correct
29 Correct 164 ms 45892 KB Output is correct
30 Correct 174 ms 46028 KB Output is correct
31 Correct 169 ms 45908 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 1 ms 212 KB Output is correct
35 Correct 0 ms 212 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 0 ms 212 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 3 ms 596 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 2 ms 468 KB Output is correct
44 Correct 1 ms 340 KB Output is correct
45 Correct 1 ms 436 KB Output is correct
46 Correct 1 ms 340 KB Output is correct
47 Correct 2 ms 468 KB Output is correct
48 Correct 44 ms 4668 KB Output is correct
49 Correct 44 ms 4564 KB Output is correct
50 Correct 44 ms 4652 KB Output is correct
51 Correct 44 ms 4692 KB Output is correct
52 Correct 43 ms 4656 KB Output is correct
53 Correct 90 ms 8856 KB Output is correct
54 Correct 9 ms 1236 KB Output is correct
55 Correct 30 ms 3372 KB Output is correct
56 Correct 2 ms 468 KB Output is correct
57 Correct 8 ms 1108 KB Output is correct
58 Correct 5 ms 1644 KB Output is correct
59 Correct 252 ms 21212 KB Output is correct
60 Correct 436 ms 30528 KB Output is correct
61 Correct 417 ms 30432 KB Output is correct
62 Correct 436 ms 30540 KB Output is correct
63 Correct 348 ms 29052 KB Output is correct
64 Correct 425 ms 30416 KB Output is correct
65 Correct 425 ms 30420 KB Output is correct
66 Correct 146 ms 12516 KB Output is correct
67 Correct 417 ms 30432 KB Output is correct
68 Correct 171 ms 45992 KB Output is correct
69 Correct 152 ms 27080 KB Output is correct
70 Correct 335 ms 53884 KB Output is correct
71 Correct 0 ms 212 KB Output is correct
72 Correct 0 ms 340 KB Output is correct
73 Correct 1 ms 212 KB Output is correct
74 Correct 0 ms 212 KB Output is correct
75 Correct 0 ms 212 KB Output is correct
76 Correct 1 ms 212 KB Output is correct
77 Correct 20 ms 37812 KB Output is correct
78 Correct 19 ms 37844 KB Output is correct
79 Correct 20 ms 37844 KB Output is correct
80 Correct 21 ms 37780 KB Output is correct
81 Correct 206 ms 47684 KB Output is correct
82 Correct 332 ms 57024 KB Output is correct
83 Correct 331 ms 57544 KB Output is correct
84 Correct 567 ms 63456 KB Output is correct
85 Correct 550 ms 66828 KB Output is correct
86 Correct 592 ms 63680 KB Output is correct
87 Correct 598 ms 67788 KB Output is correct
88 Correct 1 ms 212 KB Output is correct
89 Correct 623 ms 67660 KB Output is correct
90 Correct 507 ms 66704 KB Output is correct
91 Correct 496 ms 66508 KB Output is correct