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답안 #544717

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
544717 2022-04-02T16:08:07 Z JooDdae Bulldozer (JOI17_bulldozer) C++17
100 / 100
 1144 ms 50036 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;

#define mid ((l+r) >> 1)

struct point{
    ll x, y, w;

    bool operator < (const point &o) const{
        return tie(x, y) < tie(o.x, o.y);
    }
};

struct line{
    int i, j;
    ll dx, dy;

    bool operator < (const line &o) const{
        return make_tuple(dy * o.dx, i, j) < make_tuple(o.dy * dx, o.i, o.j);
    }
    bool operator == (const line &o) const{
        return dy * o.dx == o.dy * dx;
    }
};

struct node{
    ll mx, l, r, s;

    node operator + (const node &o) const{
        return {max({mx, o.mx, r+o.l}), max(l, s+o.l), max(o.r, o.s+r), s+o.s};
    }
} t[8080];

int n;

void update(int id, ll w, int node = 1, int l = 1, int r = n){
    if(id < l || r < id) return;
    if(l == r){
        t[node] = {w, w, w, w};
        return;
    }
    update(id, w, node*2, l, mid), update(id, w, node*2+1, mid+1, r);
    t[node] = t[node*2] + t[node*2+1];
}

int main(){
    cin.tie(0)->sync_with_stdio(0);
    cin >> n;
    vector<point> v(n);
    for(auto &[x, y, w] : v) cin >> x >> y >> w;

    if(n == 1) return cout << max(0ll, v[0].w), 0;

    sort(v.begin(), v.end());
    vector<int> p(n); iota(p.begin(), p.end(), 0);
    for(int i=0;i<n;i++) update(i+1, v[i].w);

    vector<line> l;
    for(int i=0;i<n;i++) for(int j=i+1;j<n;j++) l.push_back({i, j, v[j].x-v[i].x, v[j].y-v[i].y});
    sort(l.begin(), l.end());
    int m = l.size();

    ll ans = 0;

     for(int i=0;i<m;i++){
        int j = i;
        while(j+1 < m && l[i] == l[j+1]) j++;

        for(int k=i;k<=j;k++){
            int a = l[k].i, b = l[k].j;
            swap(p[a], p[b]), swap(v[p[a]], v[p[b]]);
            update(p[a]+1, v[p[a]].w), update(p[b]+1, v[p[b]].w);
        }

        ans = max(ans, t[1].mx);

        i = j;
    }

    cout << ans;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 596 KB Output is correct
2 Correct 2 ms 596 KB Output is correct
3 Correct 2 ms 596 KB Output is correct
4 Correct 2 ms 596 KB Output is correct
5 Correct 2 ms 596 KB Output is correct
6 Correct 2 ms 596 KB Output is correct
7 Correct 2 ms 596 KB Output is correct
8 Correct 2 ms 596 KB Output is correct
9 Correct 2 ms 596 KB Output is correct
10 Correct 2 ms 596 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 324 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 596 KB Output is correct
2 Correct 2 ms 596 KB Output is correct
3 Correct 2 ms 596 KB Output is correct
4 Correct 2 ms 596 KB Output is correct
5 Correct 2 ms 596 KB Output is correct
6 Correct 2 ms 596 KB Output is correct
7 Correct 2 ms 596 KB Output is correct
8 Correct 2 ms 596 KB Output is correct
9 Correct 2 ms 596 KB Output is correct
10 Correct 2 ms 596 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 1 ms 328 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 2 ms 584 KB Output is correct
22 Correct 2 ms 596 KB Output is correct
23 Correct 2 ms 596 KB Output is correct
24 Correct 2 ms 596 KB Output is correct
25 Correct 2 ms 596 KB Output is correct
26 Correct 2 ms 596 KB Output is correct
27 Correct 2 ms 596 KB Output is correct
28 Correct 2 ms 596 KB Output is correct
29 Correct 2 ms 596 KB Output is correct
30 Correct 3 ms 584 KB Output is correct
31 Correct 3 ms 596 KB Output is correct
32 Correct 2 ms 596 KB Output is correct

Subtask #3
35.0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 596 KB Output is correct
2 Correct 2 ms 596 KB Output is correct
3 Correct 2 ms 596 KB Output is correct
4 Correct 2 ms 596 KB Output is correct
5 Correct 2 ms 596 KB Output is correct
6 Correct 2 ms 596 KB Output is correct
7 Correct 2 ms 596 KB Output is correct
8 Correct 2 ms 596 KB Output is correct
9 Correct 2 ms 596 KB Output is correct
10 Correct 2 ms 596 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 1 ms 328 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 2 ms 584 KB Output is correct
22 Correct 2 ms 596 KB Output is correct
23 Correct 2 ms 596 KB Output is correct
24 Correct 2 ms 596 KB Output is correct
25 Correct 2 ms 596 KB Output is correct
26 Correct 2 ms 596 KB Output is correct
27 Correct 2 ms 596 KB Output is correct
28 Correct 2 ms 596 KB Output is correct
29 Correct 2 ms 596 KB Output is correct
30 Correct 3 ms 584 KB Output is correct
31 Correct 3 ms 596 KB Output is correct
32 Correct 2 ms 596 KB Output is correct
33 Correct 997 ms 49876 KB Output is correct
34 Correct 960 ms 49944 KB Output is correct
35 Correct 947 ms 49952 KB Output is correct
36 Correct 974 ms 49940 KB Output is correct
37 Correct 1030 ms 49908 KB Output is correct
38 Correct 946 ms 49948 KB Output is correct
39 Correct 986 ms 49944 KB Output is correct
40 Correct 996 ms 49896 KB Output is correct
41 Correct 968 ms 49828 KB Output is correct
42 Correct 961 ms 49920 KB Output is correct
43 Correct 981 ms 49920 KB Output is correct
44 Correct 941 ms 49960 KB Output is correct
45 Correct 932 ms 49872 KB Output is correct
46 Correct 1039 ms 49972 KB Output is correct
47 Correct 969 ms 49944 KB Output is correct
48 Correct 921 ms 49944 KB Output is correct
49 Correct 958 ms 49852 KB Output is correct
50 Correct 964 ms 49956 KB Output is correct
51 Correct 959 ms 49916 KB Output is correct
52 Correct 965 ms 49956 KB Output is correct
53 Correct 967 ms 49872 KB Output is correct
54 Correct 950 ms 49900 KB Output is correct

Subtask #4
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 596 KB Output is correct
2 Correct 2 ms 596 KB Output is correct
3 Correct 2 ms 596 KB Output is correct
4 Correct 2 ms 596 KB Output is correct
5 Correct 2 ms 596 KB Output is correct
6 Correct 2 ms 596 KB Output is correct
7 Correct 2 ms 596 KB Output is correct
8 Correct 2 ms 596 KB Output is correct
9 Correct 2 ms 596 KB Output is correct
10 Correct 2 ms 596 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 1 ms 328 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 2 ms 584 KB Output is correct
22 Correct 2 ms 596 KB Output is correct
23 Correct 2 ms 596 KB Output is correct
24 Correct 2 ms 596 KB Output is correct
25 Correct 2 ms 596 KB Output is correct
26 Correct 2 ms 596 KB Output is correct
27 Correct 2 ms 596 KB Output is correct
28 Correct 2 ms 596 KB Output is correct
29 Correct 2 ms 596 KB Output is correct
30 Correct 3 ms 584 KB Output is correct
31 Correct 3 ms 596 KB Output is correct
32 Correct 2 ms 596 KB Output is correct
33 Correct 997 ms 49876 KB Output is correct
34 Correct 960 ms 49944 KB Output is correct
35 Correct 947 ms 49952 KB Output is correct
36 Correct 974 ms 49940 KB Output is correct
37 Correct 1030 ms 49908 KB Output is correct
38 Correct 946 ms 49948 KB Output is correct
39 Correct 986 ms 49944 KB Output is correct
40 Correct 996 ms 49896 KB Output is correct
41 Correct 968 ms 49828 KB Output is correct
42 Correct 961 ms 49920 KB Output is correct
43 Correct 981 ms 49920 KB Output is correct
44 Correct 941 ms 49960 KB Output is correct
45 Correct 932 ms 49872 KB Output is correct
46 Correct 1039 ms 49972 KB Output is correct
47 Correct 969 ms 49944 KB Output is correct
48 Correct 921 ms 49944 KB Output is correct
49 Correct 958 ms 49852 KB Output is correct
50 Correct 964 ms 49956 KB Output is correct
51 Correct 959 ms 49916 KB Output is correct
52 Correct 965 ms 49956 KB Output is correct
53 Correct 967 ms 49872 KB Output is correct
54 Correct 950 ms 49900 KB Output is correct
55 Correct 960 ms 49920 KB Output is correct
56 Correct 992 ms 49944 KB Output is correct
57 Correct 975 ms 49920 KB Output is correct
58 Correct 942 ms 49968 KB Output is correct
59 Correct 970 ms 49948 KB Output is correct
60 Correct 973 ms 49944 KB Output is correct
61 Correct 950 ms 49916 KB Output is correct
62 Correct 1000 ms 49860 KB Output is correct
63 Correct 1006 ms 49944 KB Output is correct
64 Correct 1020 ms 49880 KB Output is correct
65 Correct 1077 ms 49972 KB Output is correct
66 Correct 1103 ms 50012 KB Output is correct
67 Correct 1129 ms 49972 KB Output is correct
68 Correct 1144 ms 49872 KB Output is correct
69 Correct 1106 ms 49848 KB Output is correct
70 Correct 1052 ms 49948 KB Output is correct
71 Correct 1008 ms 49956 KB Output is correct
72 Correct 997 ms 49892 KB Output is correct
73 Correct 981 ms 49944 KB Output is correct
74 Correct 999 ms 49988 KB Output is correct

Subtask #5
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 596 KB Output is correct
2 Correct 2 ms 596 KB Output is correct
3 Correct 2 ms 596 KB Output is correct
4 Correct 2 ms 596 KB Output is correct
5 Correct 2 ms 596 KB Output is correct
6 Correct 2 ms 596 KB Output is correct
7 Correct 2 ms 596 KB Output is correct
8 Correct 2 ms 596 KB Output is correct
9 Correct 2 ms 596 KB Output is correct
10 Correct 2 ms 596 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 324 KB Output is correct
16 Correct 2 ms 596 KB Output is correct
17 Correct 2 ms 596 KB Output is correct
18 Correct 2 ms 596 KB Output is correct
19 Correct 2 ms 596 KB Output is correct
20 Correct 2 ms 596 KB Output is correct
21 Correct 2 ms 596 KB Output is correct
22 Correct 2 ms 596 KB Output is correct
23 Correct 2 ms 596 KB Output is correct
24 Correct 2 ms 596 KB Output is correct
25 Correct 2 ms 596 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 0 ms 332 KB Output is correct
30 Correct 1 ms 328 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 1 ms 212 KB Output is correct
36 Correct 2 ms 584 KB Output is correct
37 Correct 2 ms 596 KB Output is correct
38 Correct 2 ms 596 KB Output is correct
39 Correct 2 ms 596 KB Output is correct
40 Correct 2 ms 596 KB Output is correct
41 Correct 2 ms 596 KB Output is correct
42 Correct 2 ms 596 KB Output is correct
43 Correct 2 ms 596 KB Output is correct
44 Correct 2 ms 596 KB Output is correct
45 Correct 3 ms 584 KB Output is correct
46 Correct 3 ms 596 KB Output is correct
47 Correct 2 ms 596 KB Output is correct
48 Correct 997 ms 49876 KB Output is correct
49 Correct 960 ms 49944 KB Output is correct
50 Correct 947 ms 49952 KB Output is correct
51 Correct 974 ms 49940 KB Output is correct
52 Correct 1030 ms 49908 KB Output is correct
53 Correct 946 ms 49948 KB Output is correct
54 Correct 986 ms 49944 KB Output is correct
55 Correct 996 ms 49896 KB Output is correct
56 Correct 968 ms 49828 KB Output is correct
57 Correct 961 ms 49920 KB Output is correct
58 Correct 981 ms 49920 KB Output is correct
59 Correct 941 ms 49960 KB Output is correct
60 Correct 932 ms 49872 KB Output is correct
61 Correct 1039 ms 49972 KB Output is correct
62 Correct 969 ms 49944 KB Output is correct
63 Correct 921 ms 49944 KB Output is correct
64 Correct 958 ms 49852 KB Output is correct
65 Correct 964 ms 49956 KB Output is correct
66 Correct 959 ms 49916 KB Output is correct
67 Correct 965 ms 49956 KB Output is correct
68 Correct 967 ms 49872 KB Output is correct
69 Correct 950 ms 49900 KB Output is correct
70 Correct 960 ms 49920 KB Output is correct
71 Correct 992 ms 49944 KB Output is correct
72 Correct 975 ms 49920 KB Output is correct
73 Correct 942 ms 49968 KB Output is correct
74 Correct 970 ms 49948 KB Output is correct
75 Correct 973 ms 49944 KB Output is correct
76 Correct 950 ms 49916 KB Output is correct
77 Correct 1000 ms 49860 KB Output is correct
78 Correct 1006 ms 49944 KB Output is correct
79 Correct 1020 ms 49880 KB Output is correct
80 Correct 1077 ms 49972 KB Output is correct
81 Correct 1103 ms 50012 KB Output is correct
82 Correct 1129 ms 49972 KB Output is correct
83 Correct 1144 ms 49872 KB Output is correct
84 Correct 1106 ms 49848 KB Output is correct
85 Correct 1052 ms 49948 KB Output is correct
86 Correct 1008 ms 49956 KB Output is correct
87 Correct 997 ms 49892 KB Output is correct
88 Correct 981 ms 49944 KB Output is correct
89 Correct 999 ms 49988 KB Output is correct
90 Correct 981 ms 49944 KB Output is correct
91 Correct 987 ms 49944 KB Output is correct
92 Correct 989 ms 49932 KB Output is correct
93 Correct 969 ms 49980 KB Output is correct
94 Correct 978 ms 49944 KB Output is correct
95 Correct 977 ms 49896 KB Output is correct
96 Correct 948 ms 49944 KB Output is correct
97 Correct 958 ms 49952 KB Output is correct
98 Correct 1004 ms 49864 KB Output is correct
99 Correct 997 ms 49948 KB Output is correct
100 Correct 833 ms 49944 KB Output is correct
101 Correct 839 ms 49968 KB Output is correct
102 Correct 826 ms 49948 KB Output is correct
103 Correct 827 ms 49848 KB Output is correct
104 Correct 833 ms 50036 KB Output is correct
105 Correct 875 ms 49900 KB Output is correct
106 Correct 863 ms 49956 KB Output is correct
107 Correct 849 ms 49920 KB Output is correct
108 Correct 864 ms 49944 KB Output is correct
109 Correct 856 ms 49944 KB Output is correct
110 Correct 966 ms 49952 KB Output is correct
111 Correct 953 ms 49952 KB Output is correct
112 Correct 1018 ms 49924 KB Output is correct
113 Correct 1010 ms 49816 KB Output is correct
114 Correct 998 ms 49868 KB Output is correct
115 Correct 977 ms 49896 KB Output is correct
116 Correct 1006 ms 49936 KB Output is correct
117 Correct 955 ms 49944 KB Output is correct
118 Correct 962 ms 49944 KB Output is correct
119 Correct 902 ms 49940 KB Output is correct
120 Correct 1 ms 212 KB Output is correct
121 Correct 1 ms 212 KB Output is correct
122 Correct 1020 ms 49944 KB Output is correct
123 Correct 967 ms 49916 KB Output is correct
124 Correct 1002 ms 49868 KB Output is correct
125 Correct 976 ms 49948 KB Output is correct
126 Correct 994 ms 49860 KB Output is correct
127 Correct 973 ms 49992 KB Output is correct
128 Correct 976 ms 49952 KB Output is correct
129 Correct 972 ms 49920 KB Output is correct
130 Correct 1000 ms 49944 KB Output is correct
131 Correct 967 ms 49972 KB Output is correct
132 Correct 1064 ms 49948 KB Output is correct
133 Correct 956 ms 49932 KB Output is correct