oj.uz

답안 #736072

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
736072 2023-05-05T07:48:02 Z Ronin13 Discharging (NOI20_discharging) C++14
100 / 100
 282 ms 92916 KB 
#include <bits/stdc++.h>
#define ll long long
#define f first
#define s second
#define pii pair<int,int>
#define pll pair<ll,ll>
#define pb push_back
#define epb emplace_back
#define ull unsigned ll
using namespace std;

const int nmax = 10000001;


struct line{
    ll k, b;
    line(ll k, ll b) : k(k), b(b){

    }
    line(){
        k = 0, b = 1e18;
    }
    ll get(ll x){
        return k * x + b;
    }
};

vector <line> t;

vector <int> le(nmax), ri(nmax);

void add(int v, int l, int r, line nw){
    int m = (l + r) / 2;
    if(l > r){
        return;
    }
    bool left = t[v].get(l) < nw.get(l);
    bool mid = t[v].get(m) < nw.get(m);
    if(!mid) swap(t[v], nw);
    if(mid == left){
        if(ri[v] == 0){
            ri[v] = t.size();
            t.pb(nw);
            return;
        }
        add(ri[v], m + 1, r, nw);
    }
    else{
        if(le[v] == 0)
            le[v] = t.size(), t.pb(nw);
        else add(le[v], l, m, nw);
    }
}

ll get(int v, int l, int r, ll pos){
    if(l > r || v == 0) return 1e18;
    ll m = (l + r) / 2;
    if(pos > m)
        return min(t[v].get(pos), get(ri[v], m + 1, r, pos));
    return min(t[v].get(pos), get(le[v], l, m, pos));
}

line empt;

int32_t main(){
    ios_base::sync_with_stdio(false); cin.tie(0);
    t.pb(empt);

    int n; cin >> n;
    t.pb({n, 0});
    vector <int> a(n + 1);
    vector <int> b;
    int mx = 0;
    for(int i = 1; i <= n; ++i){
        cin >> a[i];
        if(a[i] > mx){
            b.pb(i);
            mx = a[i];
        }
    }
    ll ans = 0;
    for(int i= 0; i < b.size(); i++){
        int x = b[i];
        ll val = get(1, 1, 1e9, a[x]);
        ans = val;
        if(i != b.size() - 1){
            int x = b[i + 1] - 1;
             add(1, 1, 1e9, {n - x, ans});
        }
    }
    cout << ans;
    return 0;
}

Compilation message

Discharging.cpp: In function 'int32_t main()':
Discharging.cpp:82:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   82 |     for(int i= 0; i < b.size(); i++){
      |                   ~~^~~~~~~~~~
Discharging.cpp:86:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   86 |         if(i != b.size() - 1){
      |            ~~^~~~~~~~~~~~~~~

Subtask #1
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 33 ms 78540 KB Output is correct
2 Correct 32 ms 78504 KB Output is correct
3 Correct 32 ms 78492 KB Output is correct
4 Correct 31 ms 78608 KB Output is correct
5 Correct 31 ms 78588 KB Output is correct
6 Correct 30 ms 78588 KB Output is correct
7 Correct 31 ms 78556 KB Output is correct
8 Correct 31 ms 78548 KB Output is correct
9 Correct 31 ms 78540 KB Output is correct
10 Correct 35 ms 78540 KB Output is correct
11 Correct 30 ms 78528 KB Output is correct
12 Correct 33 ms 78552 KB Output is correct
13 Correct 31 ms 78548 KB Output is correct
14 Correct 31 ms 78588 KB Output is correct

Subtask #2
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 32 ms 78620 KB Output is correct
2 Correct 30 ms 78588 KB Output is correct
3 Correct 32 ms 78544 KB Output is correct
4 Correct 31 ms 78604 KB Output is correct
5 Correct 32 ms 78588 KB Output is correct
6 Correct 32 ms 78556 KB Output is correct
7 Correct 33 ms 78616 KB Output is correct
8 Correct 35 ms 78604 KB Output is correct
9 Correct 33 ms 78604 KB Output is correct
10 Correct 29 ms 78636 KB Output is correct
11 Correct 30 ms 78552 KB Output is correct
12 Correct 31 ms 78548 KB Output is correct
13 Correct 32 ms 78724 KB Output is correct
14 Correct 30 ms 78620 KB Output is correct
15 Correct 30 ms 78524 KB Output is correct

Subtask #3
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 32 ms 78620 KB Output is correct
2 Correct 30 ms 78588 KB Output is correct
3 Correct 32 ms 78544 KB Output is correct
4 Correct 31 ms 78604 KB Output is correct
5 Correct 32 ms 78588 KB Output is correct
6 Correct 32 ms 78556 KB Output is correct
7 Correct 33 ms 78616 KB Output is correct
8 Correct 35 ms 78604 KB Output is correct
9 Correct 33 ms 78604 KB Output is correct
10 Correct 29 ms 78636 KB Output is correct
11 Correct 30 ms 78552 KB Output is correct
12 Correct 31 ms 78548 KB Output is correct
13 Correct 32 ms 78724 KB Output is correct
14 Correct 30 ms 78620 KB Output is correct
15 Correct 30 ms 78524 KB Output is correct
16 Correct 199 ms 89480 KB Output is correct
17 Correct 236 ms 90548 KB Output is correct
18 Correct 173 ms 89020 KB Output is correct
19 Correct 219 ms 90556 KB Output is correct
20 Correct 232 ms 90456 KB Output is correct
21 Correct 232 ms 90448 KB Output is correct
22 Correct 219 ms 89924 KB Output is correct
23 Correct 270 ms 92528 KB Output is correct
24 Correct 247 ms 92644 KB Output is correct
25 Correct 256 ms 92916 KB Output is correct
26 Correct 276 ms 92368 KB Output is correct
27 Correct 199 ms 89364 KB Output is correct
28 Correct 229 ms 90684 KB Output is correct
29 Correct 262 ms 92680 KB Output is correct
30 Correct 282 ms 92360 KB Output is correct

Subtask #4
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 123 ms 92096 KB Output is correct
2 Correct 146 ms 92100 KB Output is correct
3 Correct 122 ms 92108 KB Output is correct
4 Correct 126 ms 92164 KB Output is correct
5 Correct 120 ms 92108 KB Output is correct
6 Correct 131 ms 92108 KB Output is correct
7 Correct 125 ms 92236 KB Output is correct
8 Correct 119 ms 92140 KB Output is correct
9 Correct 124 ms 92188 KB Output is correct
10 Correct 121 ms 92188 KB Output is correct

Subtask #5
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 33 ms 78540 KB Output is correct
2 Correct 32 ms 78504 KB Output is correct
3 Correct 32 ms 78492 KB Output is correct
4 Correct 31 ms 78608 KB Output is correct
5 Correct 31 ms 78588 KB Output is correct
6 Correct 30 ms 78588 KB Output is correct
7 Correct 31 ms 78556 KB Output is correct
8 Correct 31 ms 78548 KB Output is correct
9 Correct 31 ms 78540 KB Output is correct
10 Correct 35 ms 78540 KB Output is correct
11 Correct 30 ms 78528 KB Output is correct
12 Correct 33 ms 78552 KB Output is correct
13 Correct 31 ms 78548 KB Output is correct
14 Correct 31 ms 78588 KB Output is correct
15 Correct 32 ms 78620 KB Output is correct
16 Correct 30 ms 78588 KB Output is correct
17 Correct 32 ms 78544 KB Output is correct
18 Correct 31 ms 78604 KB Output is correct
19 Correct 32 ms 78588 KB Output is correct
20 Correct 32 ms 78556 KB Output is correct
21 Correct 33 ms 78616 KB Output is correct
22 Correct 35 ms 78604 KB Output is correct
23 Correct 33 ms 78604 KB Output is correct
24 Correct 29 ms 78636 KB Output is correct
25 Correct 30 ms 78552 KB Output is correct
26 Correct 31 ms 78548 KB Output is correct
27 Correct 32 ms 78724 KB Output is correct
28 Correct 30 ms 78620 KB Output is correct
29 Correct 30 ms 78524 KB Output is correct
30 Correct 28 ms 78500 KB Output is correct
31 Correct 31 ms 78676 KB Output is correct
32 Correct 31 ms 78484 KB Output is correct
33 Correct 30 ms 78544 KB Output is correct
34 Correct 29 ms 78596 KB Output is correct
35 Correct 31 ms 78568 KB Output is correct
36 Correct 28 ms 78540 KB Output is correct
37 Correct 30 ms 78508 KB Output is correct
38 Correct 30 ms 78596 KB Output is correct
39 Correct 29 ms 78556 KB Output is correct
40 Correct 30 ms 78492 KB Output is correct
41 Correct 30 ms 78548 KB Output is correct
42 Correct 30 ms 78600 KB Output is correct
43 Correct 30 ms 78540 KB Output is correct
44 Correct 29 ms 78548 KB Output is correct
45 Correct 30 ms 78560 KB Output is correct
46 Correct 31 ms 78592 KB Output is correct
47 Correct 30 ms 78548 KB Output is correct
48 Correct 30 ms 78564 KB Output is correct
49 Correct 29 ms 78484 KB Output is correct
50 Correct 30 ms 78548 KB Output is correct

Subtask #6
28.0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 33 ms 78540 KB Output is correct
2 Correct 32 ms 78504 KB Output is correct
3 Correct 32 ms 78492 KB Output is correct
4 Correct 31 ms 78608 KB Output is correct
5 Correct 31 ms 78588 KB Output is correct
6 Correct 30 ms 78588 KB Output is correct
7 Correct 31 ms 78556 KB Output is correct
8 Correct 31 ms 78548 KB Output is correct
9 Correct 31 ms 78540 KB Output is correct
10 Correct 35 ms 78540 KB Output is correct
11 Correct 30 ms 78528 KB Output is correct
12 Correct 33 ms 78552 KB Output is correct
13 Correct 31 ms 78548 KB Output is correct
14 Correct 31 ms 78588 KB Output is correct
15 Correct 32 ms 78620 KB Output is correct
16 Correct 30 ms 78588 KB Output is correct
17 Correct 32 ms 78544 KB Output is correct
18 Correct 31 ms 78604 KB Output is correct
19 Correct 32 ms 78588 KB Output is correct
20 Correct 32 ms 78556 KB Output is correct
21 Correct 33 ms 78616 KB Output is correct
22 Correct 35 ms 78604 KB Output is correct
23 Correct 33 ms 78604 KB Output is correct
24 Correct 29 ms 78636 KB Output is correct
25 Correct 30 ms 78552 KB Output is correct
26 Correct 31 ms 78548 KB Output is correct
27 Correct 32 ms 78724 KB Output is correct
28 Correct 30 ms 78620 KB Output is correct
29 Correct 30 ms 78524 KB Output is correct
30 Correct 199 ms 89480 KB Output is correct
31 Correct 236 ms 90548 KB Output is correct
32 Correct 173 ms 89020 KB Output is correct
33 Correct 219 ms 90556 KB Output is correct
34 Correct 232 ms 90456 KB Output is correct
35 Correct 232 ms 90448 KB Output is correct
36 Correct 219 ms 89924 KB Output is correct
37 Correct 270 ms 92528 KB Output is correct
38 Correct 247 ms 92644 KB Output is correct
39 Correct 256 ms 92916 KB Output is correct
40 Correct 276 ms 92368 KB Output is correct
41 Correct 199 ms 89364 KB Output is correct
42 Correct 229 ms 90684 KB Output is correct
43 Correct 262 ms 92680 KB Output is correct
44 Correct 282 ms 92360 KB Output is correct
45 Correct 123 ms 92096 KB Output is correct
46 Correct 146 ms 92100 KB Output is correct
47 Correct 122 ms 92108 KB Output is correct
48 Correct 126 ms 92164 KB Output is correct
49 Correct 120 ms 92108 KB Output is correct
50 Correct 131 ms 92108 KB Output is correct
51 Correct 125 ms 92236 KB Output is correct
52 Correct 119 ms 92140 KB Output is correct
53 Correct 124 ms 92188 KB Output is correct
54 Correct 121 ms 92188 KB Output is correct
55 Correct 28 ms 78500 KB Output is correct
56 Correct 31 ms 78676 KB Output is correct
57 Correct 31 ms 78484 KB Output is correct
58 Correct 30 ms 78544 KB Output is correct
59 Correct 29 ms 78596 KB Output is correct
60 Correct 31 ms 78568 KB Output is correct
61 Correct 28 ms 78540 KB Output is correct
62 Correct 30 ms 78508 KB Output is correct
63 Correct 30 ms 78596 KB Output is correct
64 Correct 29 ms 78556 KB Output is correct
65 Correct 30 ms 78492 KB Output is correct
66 Correct 30 ms 78548 KB Output is correct
67 Correct 30 ms 78600 KB Output is correct
68 Correct 30 ms 78540 KB Output is correct
69 Correct 29 ms 78548 KB Output is correct
70 Correct 30 ms 78560 KB Output is correct
71 Correct 31 ms 78592 KB Output is correct
72 Correct 30 ms 78548 KB Output is correct
73 Correct 30 ms 78564 KB Output is correct
74 Correct 29 ms 78484 KB Output is correct
75 Correct 30 ms 78548 KB Output is correct
76 Correct 107 ms 88508 KB Output is correct
77 Correct 110 ms 88556 KB Output is correct
78 Correct 110 ms 87872 KB Output is correct
79 Correct 100 ms 88132 KB Output is correct
80 Correct 111 ms 88776 KB Output is correct
81 Correct 108 ms 87992 KB Output is correct
82 Correct 108 ms 88012 KB Output is correct
83 Correct 103 ms 88388 KB Output is correct
84 Correct 103 ms 88252 KB Output is correct
85 Correct 104 ms 88548 KB Output is correct
86 Correct 104 ms 87876 KB Output is correct
87 Correct 106 ms 87776 KB Output is correct
88 Correct 99 ms 88200 KB Output is correct
89 Correct 98 ms 88000 KB Output is correct
90 Correct 102 ms 87868 KB Output is correct
91 Correct 94 ms 87756 KB Output is correct
92 Correct 254 ms 91552 KB Output is correct
93 Correct 227 ms 90536 KB Output is correct
94 Correct 93 ms 87372 KB Output is correct
95 Correct 104 ms 88880 KB Output is correct
96 Correct 96 ms 87756 KB Output is correct
97 Correct 106 ms 88136 KB Output is correct
98 Correct 98 ms 88252 KB Output is correct
99 Correct 96 ms 87876 KB Output is correct
100 Correct 115 ms 88216 KB Output is correct