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Submission #160703

# Submission time Handle Problem Language Result Execution time Memory
160703 2019-10-29T11:23:23 Z gs18103 Fireworks (APIO16_fireworks) C++14
100 / 100
 288 ms 62692 KB 
#include <bits/stdc++.h>
#define fi first
#define se second
#define all(v) v.begin(), v.end()
#define eb emplace_back
#define em emplace

using namespace std;
typedef long long ll;
typedef pair <int, int> pii;
typedef pair <ll, ll> pll;

const int INF = 1 << 30;
const ll LINF = 1LL << 62;
const int MAX = 303030;

ll ans = 0;
struct node{
    priority_queue <ll> L;
    priority_queue <ll, vector <ll>, greater <ll> > R;
    int sz = 0;
    void merge(node &X) {
        if(X.sz == 0) return;
        sz += X.sz;
        while(!X.L.empty()) {
            ll temp = X.L.top();
            X.L.pop();
            if(temp > R.top()){
                ans += temp - R.top();
                L.em(R.top()); R.pop();
                R.em(temp);
            }
            else L.em(temp);
        }
        while(!X.R.empty()) {
            ll temp = X.R.top();
            X.R.pop();
            if(temp < L.top()){
                ans += L.top() - temp;
                R.em(L.top()); L.pop();
                L.em(temp);
            }
            else R.em(temp);
        }
    }
    void modify(ll val) {
        ll Rt = 0, Lt = 0;
        if(!R.empty()) {Rt = R.top();}
        if(!L.empty()) {Lt = L.top(); L.pop();}
        while(!R.empty()) R.pop(), sz--;
        R.push(Rt + val);
        L.push(Lt + val);
        sz += 2;
    }
} dp[MAX];

int p[MAX], idx[MAX];
ll c[MAX];

int main() {
    ios::sync_with_stdio(false); cin.tie(0);

    int n, m;
    cin >> n >> m;
    for(int i = 2; i <= n + m; i++) {
        cin >> p[i] >> c[i];
        idx[i] = i;
    }
    for(int i = n + m; i > 1; i--) {
        dp[idx[i]].modify(c[i]);
        if(dp[idx[p[i]]].sz < dp[idx[i]].sz) {
            dp[idx[i]].merge(dp[idx[p[i]]]);
            idx[p[i]] = idx[i];
        }
        else dp[idx[p[i]]].merge(dp[idx[i]]);
    }
    cout << ans;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 21752 KB Output is correct
2 Correct 21 ms 21752 KB Output is correct
3 Correct 21 ms 21752 KB Output is correct
4 Correct 21 ms 21624 KB Output is correct
5 Correct 21 ms 21752 KB Output is correct
6 Correct 21 ms 21752 KB Output is correct
7 Correct 21 ms 21752 KB Output is correct
8 Correct 21 ms 21752 KB Output is correct
9 Correct 21 ms 21628 KB Output is correct
10 Correct 21 ms 21752 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 21724 KB Output is correct
2 Correct 21 ms 21624 KB Output is correct
3 Correct 26 ms 21624 KB Output is correct
4 Correct 21 ms 21752 KB Output is correct
5 Correct 22 ms 21784 KB Output is correct
6 Correct 21 ms 21752 KB Output is correct
7 Correct 21 ms 21752 KB Output is correct
8 Correct 22 ms 21752 KB Output is correct
9 Correct 21 ms 21752 KB Output is correct
10 Correct 22 ms 21724 KB Output is correct
11 Correct 23 ms 21752 KB Output is correct
12 Correct 21 ms 21756 KB Output is correct
13 Correct 22 ms 21752 KB Output is correct
14 Correct 21 ms 21752 KB Output is correct
15 Correct 30 ms 21752 KB Output is correct
16 Correct 24 ms 21808 KB Output is correct
17 Correct 23 ms 21752 KB Output is correct
18 Correct 22 ms 21752 KB Output is correct
19 Correct 23 ms 21728 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 21752 KB Output is correct
2 Correct 21 ms 21752 KB Output is correct
3 Correct 21 ms 21752 KB Output is correct
4 Correct 21 ms 21624 KB Output is correct
5 Correct 21 ms 21752 KB Output is correct
6 Correct 21 ms 21752 KB Output is correct
7 Correct 21 ms 21752 KB Output is correct
8 Correct 21 ms 21752 KB Output is correct
9 Correct 21 ms 21628 KB Output is correct
10 Correct 21 ms 21752 KB Output is correct
11 Correct 21 ms 21724 KB Output is correct
12 Correct 21 ms 21624 KB Output is correct
13 Correct 26 ms 21624 KB Output is correct
14 Correct 21 ms 21752 KB Output is correct
15 Correct 22 ms 21784 KB Output is correct
16 Correct 21 ms 21752 KB Output is correct
17 Correct 21 ms 21752 KB Output is correct
18 Correct 22 ms 21752 KB Output is correct
19 Correct 21 ms 21752 KB Output is correct
20 Correct 22 ms 21724 KB Output is correct
21 Correct 23 ms 21752 KB Output is correct
22 Correct 21 ms 21756 KB Output is correct
23 Correct 22 ms 21752 KB Output is correct
24 Correct 21 ms 21752 KB Output is correct
25 Correct 30 ms 21752 KB Output is correct
26 Correct 24 ms 21808 KB Output is correct
27 Correct 23 ms 21752 KB Output is correct
28 Correct 22 ms 21752 KB Output is correct
29 Correct 23 ms 21728 KB Output is correct
30 Correct 22 ms 21752 KB Output is correct
31 Correct 23 ms 21752 KB Output is correct
32 Correct 23 ms 21752 KB Output is correct
33 Correct 24 ms 21880 KB Output is correct
34 Correct 23 ms 22008 KB Output is correct
35 Correct 24 ms 22008 KB Output is correct
36 Correct 24 ms 22008 KB Output is correct
37 Correct 26 ms 22136 KB Output is correct
38 Correct 24 ms 22136 KB Output is correct
39 Correct 26 ms 22084 KB Output is correct
40 Correct 24 ms 21880 KB Output is correct
41 Correct 25 ms 21880 KB Output is correct
42 Correct 24 ms 21896 KB Output is correct
43 Correct 24 ms 22136 KB Output is correct
44 Correct 25 ms 22008 KB Output is correct
45 Correct 24 ms 22136 KB Output is correct
46 Correct 26 ms 22392 KB Output is correct
47 Correct 26 ms 22392 KB Output is correct
48 Correct 26 ms 22264 KB Output is correct
49 Correct 26 ms 22392 KB Output is correct
50 Correct 25 ms 22236 KB Output is correct
51 Correct 24 ms 22236 KB Output is correct
52 Correct 26 ms 22264 KB Output is correct
53 Correct 25 ms 22136 KB Output is correct
54 Correct 25 ms 22264 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 21752 KB Output is correct
2 Correct 21 ms 21752 KB Output is correct
3 Correct 21 ms 21752 KB Output is correct
4 Correct 21 ms 21624 KB Output is correct
5 Correct 21 ms 21752 KB Output is correct
6 Correct 21 ms 21752 KB Output is correct
7 Correct 21 ms 21752 KB Output is correct
8 Correct 21 ms 21752 KB Output is correct
9 Correct 21 ms 21628 KB Output is correct
10 Correct 21 ms 21752 KB Output is correct
11 Correct 21 ms 21724 KB Output is correct
12 Correct 21 ms 21624 KB Output is correct
13 Correct 26 ms 21624 KB Output is correct
14 Correct 21 ms 21752 KB Output is correct
15 Correct 22 ms 21784 KB Output is correct
16 Correct 21 ms 21752 KB Output is correct
17 Correct 21 ms 21752 KB Output is correct
18 Correct 22 ms 21752 KB Output is correct
19 Correct 21 ms 21752 KB Output is correct
20 Correct 22 ms 21724 KB Output is correct
21 Correct 23 ms 21752 KB Output is correct
22 Correct 21 ms 21756 KB Output is correct
23 Correct 22 ms 21752 KB Output is correct
24 Correct 21 ms 21752 KB Output is correct
25 Correct 30 ms 21752 KB Output is correct
26 Correct 24 ms 21808 KB Output is correct
27 Correct 23 ms 21752 KB Output is correct
28 Correct 22 ms 21752 KB Output is correct
29 Correct 23 ms 21728 KB Output is correct
30 Correct 22 ms 21752 KB Output is correct
31 Correct 23 ms 21752 KB Output is correct
32 Correct 23 ms 21752 KB Output is correct
33 Correct 24 ms 21880 KB Output is correct
34 Correct 23 ms 22008 KB Output is correct
35 Correct 24 ms 22008 KB Output is correct
36 Correct 24 ms 22008 KB Output is correct
37 Correct 26 ms 22136 KB Output is correct
38 Correct 24 ms 22136 KB Output is correct
39 Correct 26 ms 22084 KB Output is correct
40 Correct 24 ms 21880 KB Output is correct
41 Correct 25 ms 21880 KB Output is correct
42 Correct 24 ms 21896 KB Output is correct
43 Correct 24 ms 22136 KB Output is correct
44 Correct 25 ms 22008 KB Output is correct
45 Correct 24 ms 22136 KB Output is correct
46 Correct 26 ms 22392 KB Output is correct
47 Correct 26 ms 22392 KB Output is correct
48 Correct 26 ms 22264 KB Output is correct
49 Correct 26 ms 22392 KB Output is correct
50 Correct 25 ms 22236 KB Output is correct
51 Correct 24 ms 22236 KB Output is correct
52 Correct 26 ms 22264 KB Output is correct
53 Correct 25 ms 22136 KB Output is correct
54 Correct 25 ms 22264 KB Output is correct
55 Correct 29 ms 22648 KB Output is correct
56 Correct 53 ms 25584 KB Output is correct
57 Correct 78 ms 28156 KB Output is correct
58 Correct 95 ms 30016 KB Output is correct
59 Correct 132 ms 32884 KB Output is correct
60 Correct 152 ms 35416 KB Output is correct
61 Correct 176 ms 37592 KB Output is correct
62 Correct 211 ms 39276 KB Output is correct
63 Correct 237 ms 42468 KB Output is correct
64 Correct 242 ms 43248 KB Output is correct
65 Correct 145 ms 31336 KB Output is correct
66 Correct 113 ms 31280 KB Output is correct
67 Correct 121 ms 31372 KB Output is correct
68 Correct 169 ms 42736 KB Output is correct
69 Correct 207 ms 42992 KB Output is correct
70 Correct 209 ms 42992 KB Output is correct
71 Correct 288 ms 62592 KB Output is correct
72 Correct 278 ms 62692 KB Output is correct
73 Correct 246 ms 59640 KB Output is correct
74 Correct 266 ms 60276 KB Output is correct
75 Correct 261 ms 58904 KB Output is correct
76 Correct 262 ms 58960 KB Output is correct
77 Correct 276 ms 57640 KB Output is correct
78 Correct 272 ms 57440 KB Output is correct
79 Correct 208 ms 53824 KB Output is correct