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Submission #199381

# Submission time Handle Problem Language Result Execution time Memory
199381 2020-01-31T21:25:47 Z gs18115 Fireworks (APIO16_fireworks) C++14
100 / 100
 326 ms 83832 KB 
#include<iostream>
#include<vector>
#include<queue>
#include<algorithm>
#define ep emplace
#define eb emplace_back
#define fi first
#define se second
#define all(x) (x).begin(),(x).end()
#define semicolon ;
#define ryan bear
using namespace std;
typedef long long ll;
typedef pair<int,int>pi;
typedef pair<ll,ll>pl;
const int inf=1e9+7;
const ll INF=1e18+7;
vector<pl>adj[300010];
priority_queue<ll,vector<ll>,less<ll> >pq1[300010];
priority_queue<ll,vector<ll>,greater<ll> >pq2[300010];
int pct;
int pn[300010];
ll b1[300010],b2[300010];
ll ans;
inline void in1(int n,ll x)
{
    if(x>pq2[n].top()+b2[n])
    {
        ans+=x-(pq2[n].top()+b2[n]);
        pq2[n].ep(x-b2[n]);
        pq1[n].ep(pq2[n].top()+b2[n]-b1[n]);
        pq2[n].pop();
    }
    else
        pq1[n].ep(x-b1[n]);
    return;
}
inline void in2(int n,ll x)
{
    if(x<pq1[n].top()+b1[n])
    {
        ans+=(pq1[n].top()+b1[n])-x;
        pq1[n].ep(x-b1[n]);
        pq2[n].ep(pq1[n].top()+b1[n]-b2[n]);
        pq1[n].pop();
    }
    else
        pq2[n].ep(x-b2[n]);
    return;
}
void dfs(int x)
{
    if(adj[x].empty())
    {
        pn[x]=pct++;
        pq1[pn[x]].ep(0);
        pq2[pn[x]].ep(0);
        return;
    }
    int sz=-1;
    for(pl&t:adj[x])
    {
        dfs(t.fi);
        b2[pn[t.fi]]+=t.se;
        ll l=pq1[pn[t.fi]].top();
        pq1[pn[t.fi]].pop();
        pq1[pn[t.fi]].ep(l+t.se);
        l=pq2[pn[t.fi]].top();
        while(!pq2[pn[t.fi]].empty())
            pq2[pn[t.fi]].pop();
        pq2[pn[t.fi]].ep(l);
        if(sz<(int)pq1[pn[t.fi]].size())
            sz=pq1[pn[x]=pn[t.fi]].size();
    }
    for(pl&t:adj[x])
    {
        if(pn[x]==pn[t.fi])
            continue;
        while(!pq1[pn[t.fi]].empty())
            in1(pn[x],pq1[pn[t.fi]].top()+b1[pn[t.fi]]),pq1[pn[t.fi]].pop();
        while(!pq2[pn[t.fi]].empty())
            in2(pn[x],pq2[pn[t.fi]].top()+b2[pn[t.fi]]),pq2[pn[t.fi]].pop();
    }
    return;
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int v,c,p;
    cin>>v>>c;
    v+=c;
    for(int i=1;i++<v;)
        cin>>p>>c,adj[p].eb(i,c);
    dfs(1);
    cout<<ans<<endl;
    return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 26104 KB Output is correct
2 Correct 20 ms 26104 KB Output is correct
3 Correct 21 ms 26360 KB Output is correct
4 Correct 20 ms 26232 KB Output is correct
5 Correct 20 ms 26104 KB Output is correct
6 Correct 20 ms 26232 KB Output is correct
7 Correct 20 ms 26232 KB Output is correct
8 Correct 21 ms 26236 KB Output is correct
9 Correct 22 ms 26232 KB Output is correct
10 Correct 21 ms 26232 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 26360 KB Output is correct
2 Correct 23 ms 26108 KB Output is correct
3 Correct 25 ms 26104 KB Output is correct
4 Correct 20 ms 26232 KB Output is correct
5 Correct 23 ms 26232 KB Output is correct
6 Correct 20 ms 26232 KB Output is correct
7 Correct 20 ms 26232 KB Output is correct
8 Correct 21 ms 26232 KB Output is correct
9 Correct 21 ms 26232 KB Output is correct
10 Correct 21 ms 26232 KB Output is correct
11 Correct 20 ms 26232 KB Output is correct
12 Correct 20 ms 26232 KB Output is correct
13 Correct 21 ms 26232 KB Output is correct
14 Correct 20 ms 26232 KB Output is correct
15 Correct 20 ms 26232 KB Output is correct
16 Correct 21 ms 26228 KB Output is correct
17 Correct 21 ms 26232 KB Output is correct
18 Correct 20 ms 26232 KB Output is correct
19 Correct 20 ms 26232 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 26104 KB Output is correct
2 Correct 20 ms 26104 KB Output is correct
3 Correct 21 ms 26360 KB Output is correct
4 Correct 20 ms 26232 KB Output is correct
5 Correct 20 ms 26104 KB Output is correct
6 Correct 20 ms 26232 KB Output is correct
7 Correct 20 ms 26232 KB Output is correct
8 Correct 21 ms 26236 KB Output is correct
9 Correct 22 ms 26232 KB Output is correct
10 Correct 21 ms 26232 KB Output is correct
11 Correct 27 ms 26360 KB Output is correct
12 Correct 23 ms 26108 KB Output is correct
13 Correct 25 ms 26104 KB Output is correct
14 Correct 20 ms 26232 KB Output is correct
15 Correct 23 ms 26232 KB Output is correct
16 Correct 20 ms 26232 KB Output is correct
17 Correct 20 ms 26232 KB Output is correct
18 Correct 21 ms 26232 KB Output is correct
19 Correct 21 ms 26232 KB Output is correct
20 Correct 21 ms 26232 KB Output is correct
21 Correct 20 ms 26232 KB Output is correct
22 Correct 20 ms 26232 KB Output is correct
23 Correct 21 ms 26232 KB Output is correct
24 Correct 20 ms 26232 KB Output is correct
25 Correct 20 ms 26232 KB Output is correct
26 Correct 21 ms 26228 KB Output is correct
27 Correct 21 ms 26232 KB Output is correct
28 Correct 20 ms 26232 KB Output is correct
29 Correct 20 ms 26232 KB Output is correct
30 Correct 20 ms 26236 KB Output is correct
31 Correct 23 ms 26280 KB Output is correct
32 Correct 21 ms 26360 KB Output is correct
33 Correct 24 ms 26416 KB Output is correct
34 Correct 23 ms 26488 KB Output is correct
35 Correct 23 ms 26492 KB Output is correct
36 Correct 23 ms 26488 KB Output is correct
37 Correct 24 ms 26616 KB Output is correct
38 Correct 24 ms 26616 KB Output is correct
39 Correct 23 ms 26616 KB Output is correct
40 Correct 22 ms 27128 KB Output is correct
41 Correct 22 ms 27128 KB Output is correct
42 Correct 23 ms 26488 KB Output is correct
43 Correct 23 ms 26872 KB Output is correct
44 Correct 24 ms 26872 KB Output is correct
45 Correct 23 ms 26872 KB Output is correct
46 Correct 25 ms 26876 KB Output is correct
47 Correct 24 ms 26872 KB Output is correct
48 Correct 25 ms 26744 KB Output is correct
49 Correct 24 ms 26872 KB Output is correct
50 Correct 24 ms 26744 KB Output is correct
51 Correct 23 ms 26744 KB Output is correct
52 Correct 26 ms 26744 KB Output is correct
53 Correct 24 ms 26872 KB Output is correct
54 Correct 24 ms 26872 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 26104 KB Output is correct
2 Correct 20 ms 26104 KB Output is correct
3 Correct 21 ms 26360 KB Output is correct
4 Correct 20 ms 26232 KB Output is correct
5 Correct 20 ms 26104 KB Output is correct
6 Correct 20 ms 26232 KB Output is correct
7 Correct 20 ms 26232 KB Output is correct
8 Correct 21 ms 26236 KB Output is correct
9 Correct 22 ms 26232 KB Output is correct
10 Correct 21 ms 26232 KB Output is correct
11 Correct 27 ms 26360 KB Output is correct
12 Correct 23 ms 26108 KB Output is correct
13 Correct 25 ms 26104 KB Output is correct
14 Correct 20 ms 26232 KB Output is correct
15 Correct 23 ms 26232 KB Output is correct
16 Correct 20 ms 26232 KB Output is correct
17 Correct 20 ms 26232 KB Output is correct
18 Correct 21 ms 26232 KB Output is correct
19 Correct 21 ms 26232 KB Output is correct
20 Correct 21 ms 26232 KB Output is correct
21 Correct 20 ms 26232 KB Output is correct
22 Correct 20 ms 26232 KB Output is correct
23 Correct 21 ms 26232 KB Output is correct
24 Correct 20 ms 26232 KB Output is correct
25 Correct 20 ms 26232 KB Output is correct
26 Correct 21 ms 26228 KB Output is correct
27 Correct 21 ms 26232 KB Output is correct
28 Correct 20 ms 26232 KB Output is correct
29 Correct 20 ms 26232 KB Output is correct
30 Correct 20 ms 26236 KB Output is correct
31 Correct 23 ms 26280 KB Output is correct
32 Correct 21 ms 26360 KB Output is correct
33 Correct 24 ms 26416 KB Output is correct
34 Correct 23 ms 26488 KB Output is correct
35 Correct 23 ms 26492 KB Output is correct
36 Correct 23 ms 26488 KB Output is correct
37 Correct 24 ms 26616 KB Output is correct
38 Correct 24 ms 26616 KB Output is correct
39 Correct 23 ms 26616 KB Output is correct
40 Correct 22 ms 27128 KB Output is correct
41 Correct 22 ms 27128 KB Output is correct
42 Correct 23 ms 26488 KB Output is correct
43 Correct 23 ms 26872 KB Output is correct
44 Correct 24 ms 26872 KB Output is correct
45 Correct 23 ms 26872 KB Output is correct
46 Correct 25 ms 26876 KB Output is correct
47 Correct 24 ms 26872 KB Output is correct
48 Correct 25 ms 26744 KB Output is correct
49 Correct 24 ms 26872 KB Output is correct
50 Correct 24 ms 26744 KB Output is correct
51 Correct 23 ms 26744 KB Output is correct
52 Correct 26 ms 26744 KB Output is correct
53 Correct 24 ms 26872 KB Output is correct
54 Correct 24 ms 26872 KB Output is correct
55 Correct 28 ms 27384 KB Output is correct
56 Correct 59 ms 30456 KB Output is correct
57 Correct 90 ms 33528 KB Output is correct
58 Correct 119 ms 35568 KB Output is correct
59 Correct 160 ms 38820 KB Output is correct
60 Correct 198 ms 41836 KB Output is correct
61 Correct 217 ms 44144 KB Output is correct
62 Correct 244 ms 45808 KB Output is correct
63 Correct 294 ms 49772 KB Output is correct
64 Correct 326 ms 50948 KB Output is correct
65 Correct 169 ms 83832 KB Output is correct
66 Correct 164 ms 83832 KB Output is correct
67 Correct 148 ms 41848 KB Output is correct
68 Correct 212 ms 72292 KB Output is correct
69 Correct 249 ms 69092 KB Output is correct
70 Correct 245 ms 69220 KB Output is correct
71 Correct 292 ms 72436 KB Output is correct
72 Correct 278 ms 72552 KB Output is correct
73 Correct 253 ms 68860 KB Output is correct
74 Correct 277 ms 69092 KB Output is correct
75 Correct 258 ms 67880 KB Output is correct
76 Correct 270 ms 67816 KB Output is correct
77 Correct 265 ms 66320 KB Output is correct
78 Correct 272 ms 63588 KB Output is correct
79 Correct 212 ms 67028 KB Output is correct