oj.uz

답안 #219518

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
219518 2020-04-05T13:13:58 Z balbit Bulldozer (JOI17_bulldozer) C++14
80 / 100
 992 ms 64928 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define SZ(x) (int)(x.size())
#define ALL(x) x.begin(),x.end()
#define pb push_back

#ifdef BALBIT
#define bug(...) cerr<<"#"<<__LINE__<<": "<<#__VA_ARGS__<<": ", _do(__VA_ARGS__)
template<typename T> void _do(T && x) {cerr<<x<<endl;}
template<typename T, typename ...S> void _do(T && x, S &&...y) {cerr<<x<<", "; _do(y...);}
#define IOS()
#else
#define IOS() ios::sync_with_stdio(0), cin.tie(0)
#define bug(...)
#define endl '\n'
#endif // BALBIT

const int maxn = 2005;

struct seg{
    ll sum, lv, rv, v;
    seg *lc=0, *rc=0;
};

int n;

void pull(seg *&o) {
    if (!o->lc) {
        if (o->v > 0)
            o->sum = o->lv = o->rv = o->v;
        else {
            o->sum = o->v;
            o->lv = o->rv = o->v = 0;
        }
    }else{
        assert(o->lc && o->rc);
        o->sum = o->lc->sum + o->rc->sum;
        o->lv = max(o->lc->lv, o->lc->sum + o->rc->lv);
        o->rv = max(o->rc->rv, o->rc->sum + o->lc->rv);
        o->v = max({o->lc->v, o->rc->v, o->lc->rv + o->rc->lv});
        assert(o->v >= 0);
    }
}

void MO(int p, int v, seg *&o, int l=0, int r=n-1) {
    if (l > p || r<p) return;
    if (l == r) {
        o->v = v;
        pull(o);
        return;
    }
    int mid = l+r>>1;
    MO(p,v,o->lc,l,mid);
    MO(p,v,o->rc,mid+1,r);
    pull(o);
}

ll arr[maxn];
void build(seg * &o, int l=0, int r=n-1) {
    if (l == r) {
        o->v = arr[l]; pull(o); return;
    }
    int mid = l+r>>1;
    o->lc = new seg();
    build(o->lc, l, mid);
    o->rc = new seg();
    build(o->rc, mid+1, r);
    pull(o);
}

struct pt{
    int x, y;
    ll v;
};

struct Ev{
    double sl;
    int a,b;
};

int at[maxn];

signed main(){
    IOS();
    cin>>n;
    seg* root = new seg();
    vector<pt> v(n);

    for (int i = 0; i<n; ++i) {
        cin>>v[i].x>>v[i].y>>v[i].v;
    }

    sort(v.begin(), v.end(), [&](pt a, pt b){return a.y!=b.y?a.y>b.y:a.x<b.x;});

    for (int i = 0; i<n; ++i) {
        arr[i] = v[i].v;
        bug(v[i].v);
        at[i] = i;
    }

    build(root);
    bug(root->v, root->sum);
    bug(root->lv, root->rv);

    ll re = root->v;

    vector<Ev> qu;

    for (int i = 0; i<n; ++i) for (int j = i+1; j<n; ++j) {
        if (v[i].y != v[j].y) {
            qu.pb({-(v[i].x-v[j].x)/(double)(v[i].y-v[j].y), i, j});
        }
    }

    sort(ALL(qu), [&](Ev a, Ev b){return a.sl < b.sl;});

    for (Ev & e : qu) {
        bug("swapping", e.a, e.b);
        assert(abs(at[e.a]-at[e.b]) == 1);
        MO(at[e.a], v[e.b].v, root);
        MO(at[e.b], v[e.a].v, root);
        swap(at[e.a], at[e.b]);
        re = max(re, root->v);
    }

    cout<<re<<endl;

}

Compilation message

bulldozer.cpp: In function 'void MO(int, int, seg*&, int, int)':
bulldozer.cpp:54:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
     int mid = l+r>>1;
               ~^~
bulldozer.cpp: In function 'void build(seg*&, int, int)':
bulldozer.cpp:65:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
     int mid = l+r>>1;
               ~^~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 4 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 516 KB Output is correct
2 Correct 6 ms 640 KB Output is correct
3 Correct 6 ms 512 KB Output is correct
4 Correct 6 ms 512 KB Output is correct
5 Correct 6 ms 512 KB Output is correct
6 Correct 6 ms 512 KB Output is correct
7 Correct 6 ms 512 KB Output is correct
8 Correct 8 ms 512 KB Output is correct
9 Correct 6 ms 512 KB Output is correct
10 Correct 6 ms 512 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 4 ms 384 KB Output is correct
18 Correct 4 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 6 ms 512 KB Output is correct
22 Correct 6 ms 512 KB Output is correct
23 Correct 7 ms 512 KB Output is correct
24 Correct 6 ms 512 KB Output is correct
25 Correct 6 ms 512 KB Output is correct
26 Correct 6 ms 512 KB Output is correct
27 Correct 6 ms 640 KB Output is correct
28 Correct 6 ms 512 KB Output is correct
29 Correct 7 ms 640 KB Output is correct
30 Correct 6 ms 512 KB Output is correct
31 Correct 6 ms 640 KB Output is correct
32 Correct 6 ms 512 KB Output is correct

Subtask #3
35.0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 516 KB Output is correct
2 Correct 6 ms 640 KB Output is correct
3 Correct 6 ms 512 KB Output is correct
4 Correct 6 ms 512 KB Output is correct
5 Correct 6 ms 512 KB Output is correct
6 Correct 6 ms 512 KB Output is correct
7 Correct 6 ms 512 KB Output is correct
8 Correct 8 ms 512 KB Output is correct
9 Correct 6 ms 512 KB Output is correct
10 Correct 6 ms 512 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 4 ms 384 KB Output is correct
18 Correct 4 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 6 ms 512 KB Output is correct
22 Correct 6 ms 512 KB Output is correct
23 Correct 7 ms 512 KB Output is correct
24 Correct 6 ms 512 KB Output is correct
25 Correct 6 ms 512 KB Output is correct
26 Correct 6 ms 512 KB Output is correct
27 Correct 6 ms 640 KB Output is correct
28 Correct 6 ms 512 KB Output is correct
29 Correct 7 ms 640 KB Output is correct
30 Correct 6 ms 512 KB Output is correct
31 Correct 6 ms 640 KB Output is correct
32 Correct 6 ms 512 KB Output is correct
33 Correct 957 ms 33732 KB Output is correct
34 Correct 955 ms 33744 KB Output is correct
35 Correct 945 ms 33728 KB Output is correct
36 Correct 974 ms 33728 KB Output is correct
37 Correct 946 ms 33616 KB Output is correct
38 Correct 980 ms 33752 KB Output is correct
39 Correct 955 ms 33888 KB Output is correct
40 Correct 960 ms 33744 KB Output is correct
41 Correct 932 ms 33744 KB Output is correct
42 Correct 947 ms 33744 KB Output is correct
43 Correct 931 ms 33752 KB Output is correct
44 Correct 967 ms 33760 KB Output is correct
45 Correct 950 ms 33748 KB Output is correct
46 Correct 936 ms 33752 KB Output is correct
47 Correct 946 ms 33744 KB Output is correct
48 Correct 949 ms 33744 KB Output is correct
49 Correct 950 ms 33768 KB Output is correct
50 Correct 957 ms 33744 KB Output is correct
51 Correct 955 ms 33756 KB Output is correct
52 Correct 950 ms 33744 KB Output is correct
53 Correct 926 ms 33744 KB Output is correct
54 Correct 943 ms 33600 KB Output is correct

Subtask #4
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 516 KB Output is correct
2 Correct 6 ms 640 KB Output is correct
3 Correct 6 ms 512 KB Output is correct
4 Correct 6 ms 512 KB Output is correct
5 Correct 6 ms 512 KB Output is correct
6 Correct 6 ms 512 KB Output is correct
7 Correct 6 ms 512 KB Output is correct
8 Correct 8 ms 512 KB Output is correct
9 Correct 6 ms 512 KB Output is correct
10 Correct 6 ms 512 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 4 ms 384 KB Output is correct
18 Correct 4 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 6 ms 512 KB Output is correct
22 Correct 6 ms 512 KB Output is correct
23 Correct 7 ms 512 KB Output is correct
24 Correct 6 ms 512 KB Output is correct
25 Correct 6 ms 512 KB Output is correct
26 Correct 6 ms 512 KB Output is correct
27 Correct 6 ms 640 KB Output is correct
28 Correct 6 ms 512 KB Output is correct
29 Correct 7 ms 640 KB Output is correct
30 Correct 6 ms 512 KB Output is correct
31 Correct 6 ms 640 KB Output is correct
32 Correct 6 ms 512 KB Output is correct
33 Correct 957 ms 33732 KB Output is correct
34 Correct 955 ms 33744 KB Output is correct
35 Correct 945 ms 33728 KB Output is correct
36 Correct 974 ms 33728 KB Output is correct
37 Correct 946 ms 33616 KB Output is correct
38 Correct 980 ms 33752 KB Output is correct
39 Correct 955 ms 33888 KB Output is correct
40 Correct 960 ms 33744 KB Output is correct
41 Correct 932 ms 33744 KB Output is correct
42 Correct 947 ms 33744 KB Output is correct
43 Correct 931 ms 33752 KB Output is correct
44 Correct 967 ms 33760 KB Output is correct
45 Correct 950 ms 33748 KB Output is correct
46 Correct 936 ms 33752 KB Output is correct
47 Correct 946 ms 33744 KB Output is correct
48 Correct 949 ms 33744 KB Output is correct
49 Correct 950 ms 33768 KB Output is correct
50 Correct 957 ms 33744 KB Output is correct
51 Correct 955 ms 33756 KB Output is correct
52 Correct 950 ms 33744 KB Output is correct
53 Correct 926 ms 33744 KB Output is correct
54 Correct 943 ms 33600 KB Output is correct
55 Correct 959 ms 33744 KB Output is correct
56 Correct 985 ms 33744 KB Output is correct
57 Correct 959 ms 33768 KB Output is correct
58 Correct 959 ms 33744 KB Output is correct
59 Correct 992 ms 33760 KB Output is correct
60 Correct 957 ms 33760 KB Output is correct
61 Correct 955 ms 33744 KB Output is correct
62 Correct 965 ms 33744 KB Output is correct
63 Correct 947 ms 33744 KB Output is correct
64 Correct 958 ms 33620 KB Output is correct
65 Correct 947 ms 33760 KB Output is correct
66 Correct 950 ms 33728 KB Output is correct
67 Correct 943 ms 33760 KB Output is correct
68 Correct 955 ms 33744 KB Output is correct
69 Correct 933 ms 33744 KB Output is correct
70 Correct 958 ms 33728 KB Output is correct
71 Correct 945 ms 33748 KB Output is correct
72 Correct 958 ms 33744 KB Output is correct
73 Correct 946 ms 33632 KB Output is correct
74 Correct 949 ms 33616 KB Output is correct

Subtask #5
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 4 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 6 ms 516 KB Output is correct
17 Correct 6 ms 640 KB Output is correct
18 Correct 6 ms 512 KB Output is correct
19 Correct 6 ms 512 KB Output is correct
20 Correct 6 ms 512 KB Output is correct
21 Correct 6 ms 512 KB Output is correct
22 Correct 6 ms 512 KB Output is correct
23 Correct 8 ms 512 KB Output is correct
24 Correct 6 ms 512 KB Output is correct
25 Correct 6 ms 512 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 5 ms 384 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 4 ms 384 KB Output is correct
33 Correct 4 ms 384 KB Output is correct
34 Correct 5 ms 384 KB Output is correct
35 Correct 5 ms 384 KB Output is correct
36 Correct 6 ms 512 KB Output is correct
37 Correct 6 ms 512 KB Output is correct
38 Correct 7 ms 512 KB Output is correct
39 Correct 6 ms 512 KB Output is correct
40 Correct 6 ms 512 KB Output is correct
41 Correct 6 ms 512 KB Output is correct
42 Correct 6 ms 640 KB Output is correct
43 Correct 6 ms 512 KB Output is correct
44 Correct 7 ms 640 KB Output is correct
45 Correct 6 ms 512 KB Output is correct
46 Correct 6 ms 640 KB Output is correct
47 Correct 6 ms 512 KB Output is correct
48 Correct 957 ms 33732 KB Output is correct
49 Correct 955 ms 33744 KB Output is correct
50 Correct 945 ms 33728 KB Output is correct
51 Correct 974 ms 33728 KB Output is correct
52 Correct 946 ms 33616 KB Output is correct
53 Correct 980 ms 33752 KB Output is correct
54 Correct 955 ms 33888 KB Output is correct
55 Correct 960 ms 33744 KB Output is correct
56 Correct 932 ms 33744 KB Output is correct
57 Correct 947 ms 33744 KB Output is correct
58 Correct 931 ms 33752 KB Output is correct
59 Correct 967 ms 33760 KB Output is correct
60 Correct 950 ms 33748 KB Output is correct
61 Correct 936 ms 33752 KB Output is correct
62 Correct 946 ms 33744 KB Output is correct
63 Correct 949 ms 33744 KB Output is correct
64 Correct 950 ms 33768 KB Output is correct
65 Correct 957 ms 33744 KB Output is correct
66 Correct 955 ms 33756 KB Output is correct
67 Correct 950 ms 33744 KB Output is correct
68 Correct 926 ms 33744 KB Output is correct
69 Correct 943 ms 33600 KB Output is correct
70 Correct 959 ms 33744 KB Output is correct
71 Correct 985 ms 33744 KB Output is correct
72 Correct 959 ms 33768 KB Output is correct
73 Correct 959 ms 33744 KB Output is correct
74 Correct 992 ms 33760 KB Output is correct
75 Correct 957 ms 33760 KB Output is correct
76 Correct 955 ms 33744 KB Output is correct
77 Correct 965 ms 33744 KB Output is correct
78 Correct 947 ms 33744 KB Output is correct
79 Correct 958 ms 33620 KB Output is correct
80 Correct 947 ms 33760 KB Output is correct
81 Correct 950 ms 33728 KB Output is correct
82 Correct 943 ms 33760 KB Output is correct
83 Correct 955 ms 33744 KB Output is correct
84 Correct 933 ms 33744 KB Output is correct
85 Correct 958 ms 33728 KB Output is correct
86 Correct 945 ms 33748 KB Output is correct
87 Correct 958 ms 33744 KB Output is correct
88 Correct 946 ms 33632 KB Output is correct
89 Correct 949 ms 33616 KB Output is correct
90 Correct 960 ms 33760 KB Output is correct
91 Correct 959 ms 33744 KB Output is correct
92 Correct 960 ms 33600 KB Output is correct
93 Correct 962 ms 33744 KB Output is correct
94 Correct 968 ms 33744 KB Output is correct
95 Correct 960 ms 33732 KB Output is correct
96 Correct 950 ms 33744 KB Output is correct
97 Correct 961 ms 33768 KB Output is correct
98 Correct 972 ms 33760 KB Output is correct
99 Correct 974 ms 33744 KB Output is correct
100 Runtime error 390 ms 64928 KB Execution killed with signal 11 (could be triggered by violating memory limits)
101 Halted 0 ms 0 KB -