oj.uz

Submission #204782

# Submission time Handle Problem Language Result Execution time Memory
204782 2020-02-27T06:10:05 Z egekabas Construction of Highway (JOI18_construction) C++14
100 / 100
 547 ms 111468 KB 
#include <bits/stdc++.h>
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
using namespace std;
typedef long long   ll;
typedef unsigned long long   ull;
typedef long double ld;
typedef pair<ll, ll>    pll;
typedef pair<ull, ull>    pull;
typedef pair<ll, ll>  pii;
typedef pair<ld, ld>  pld;
ll n;
vector<ll> querry;
ll val[100009];
vector<ll> g[100009];
ll prt[100009];
ll subsz[100009];
ll depth[100009];
void dfs1(int v){
    subsz[v] = 1;
    for(auto u : g[v]){
        prt[u] = v;
        depth[u] = depth[v]+1;
        dfs1(u);
        subsz[v] += subsz[u];
    }
}
int eul[100009];
int chain[100009];
int cureul = 0;
void dfs2(int v){
    //cout << v << " -- " << cureul << '\n';
    eul[v] = cureul++;
    if(eul[prt[v]] == eul[v]-1)
        chain[v] = chain[prt[v]];
    else
        chain[v] = v;
    int biggest = 0, id = 0;
    for(auto u : g[v])
        if(subsz[u] > biggest){
            biggest = subsz[u];
            id = u;
        }
    if(id != 0)
        dfs2(id);
    for(auto u : g[v])
        if(u != id)
            dfs2(u);
}
deque<pll> vec[100009];
    
ll bit[100009];
void updbit(ll idx, ll val){
    ++idx;
    while(idx <= n+2){
        bit[idx] += val;
        idx += idx&(-idx);
    }
}
ll getbit(ll idx){
    ++idx;
    ll ret = 0;
    while(idx > 0){
        ret += bit[idx];
        idx -= idx&(-idx);
    }
    return ret;
}
    
ll gettree(ll idx){
    vector<pll> all;
    while(idx != 0){
        deque<pll> &v = vec[chain[idx]];
        ll cnt = depth[idx]-depth[chain[idx]]+1;
        vector<pll> cur;
        for(auto u : v){
            ll sub = min(cnt, u.ff);
            cnt -= sub;
            cur.pb({sub, u.ss});
            if(cnt == 0)
                break;
        }
        reverse(cur.begin(), cur.end());
        for(auto u : cur)
            all.pb(u);
        idx = prt[chain[idx]];
    }
    ll ret = 0;
    for(auto u : all){
        ret += u.ff*getbit(u.ss-1);
        updbit(u.ss, u.ff);
    }
    for(auto u : all)
        updbit(u.ss, -u.ff);
    return ret;
}
void updtree(ll idx, ll val){
    while(idx != 0){
        deque<pll> &v = vec[chain[idx]];
        ll cnt = depth[idx]-depth[chain[idx]]+1;
        while(cnt > 0 && !v.empty()){
            ll sub = min(cnt, v.front().ff);
            cnt -= sub;
            v.front().ff -= sub;
            if(v.front().ff == 0)
                v.pop_front();
        }
        v.push_front({depth[idx]-depth[chain[idx]]+1, val});
        idx = prt[chain[idx]];
    }
}
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    
    //freopen("in.txt", "r", stdin);
    //freopen("out.txt", "w", stdout);
    
    cin >> n;
    vector<ll> compress;
    for(ll i = 1; i <= n; ++i){
        cin >> val[i];
        compress.pb(val[i]);
    }
    sort(compress.begin(), compress.end());
    compress.resize(unique(compress.begin(), compress.end())-compress.begin());
    for(ll i = 1; i <= n; ++i)
        val[i] = lower_bound(compress.begin(), compress.end(), val[i])-compress.begin();
    for(ll i = 1; i < n; ++i){
        ll x, y;
        cin >> x >> y;
        g[x].pb(y);
        querry.pb(y);
    }
    dfs1(1);
    dfs2(1);
    //updtree(1, val[1]);
    for(auto u : querry){
        
        cout << gettree(prt[u]) << '\n';

        updtree(u, val[u]);
    }
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 70008 KB Output is correct
2 Correct 52 ms 70008 KB Output is correct
3 Correct 58 ms 70136 KB Output is correct
4 Correct 60 ms 70140 KB Output is correct
5 Correct 58 ms 70264 KB Output is correct
6 Correct 58 ms 70272 KB Output is correct
7 Correct 59 ms 70264 KB Output is correct
8 Correct 54 ms 70136 KB Output is correct
9 Correct 55 ms 70136 KB Output is correct
10 Correct 54 ms 70140 KB Output is correct
11 Correct 57 ms 70264 KB Output is correct
12 Correct 59 ms 70264 KB Output is correct
13 Correct 59 ms 70264 KB Output is correct
14 Correct 59 ms 70264 KB Output is correct
15 Correct 60 ms 70264 KB Output is correct
16 Correct 58 ms 70264 KB Output is correct
17 Correct 58 ms 70136 KB Output is correct
18 Correct 60 ms 70264 KB Output is correct
19 Correct 59 ms 70264 KB Output is correct
20 Correct 58 ms 70264 KB Output is correct
21 Correct 58 ms 70264 KB Output is correct
22 Correct 59 ms 70264 KB Output is correct
23 Correct 59 ms 70264 KB Output is correct
24 Correct 61 ms 70136 KB Output is correct
25 Correct 58 ms 70264 KB Output is correct
26 Correct 61 ms 70264 KB Output is correct
27 Correct 59 ms 70264 KB Output is correct
28 Correct 58 ms 70268 KB Output is correct
29 Correct 58 ms 70264 KB Output is correct
30 Correct 60 ms 70264 KB Output is correct
31 Correct 59 ms 70264 KB Output is correct
32 Correct 67 ms 70264 KB Output is correct
33 Correct 59 ms 70264 KB Output is correct
34 Correct 58 ms 70248 KB Output is correct
35 Correct 59 ms 70248 KB Output is correct
36 Correct 58 ms 70264 KB Output is correct
37 Correct 62 ms 70248 KB Output is correct
38 Correct 58 ms 70264 KB Output is correct
39 Correct 59 ms 70264 KB Output is correct
40 Correct 59 ms 70248 KB Output is correct
41 Correct 61 ms 70312 KB Output is correct
42 Correct 57 ms 70248 KB Output is correct
43 Correct 58 ms 70268 KB Output is correct
44 Correct 59 ms 70136 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 70008 KB Output is correct
2 Correct 52 ms 70008 KB Output is correct
3 Correct 58 ms 70136 KB Output is correct
4 Correct 60 ms 70140 KB Output is correct
5 Correct 58 ms 70264 KB Output is correct
6 Correct 58 ms 70272 KB Output is correct
7 Correct 59 ms 70264 KB Output is correct
8 Correct 54 ms 70136 KB Output is correct
9 Correct 55 ms 70136 KB Output is correct
10 Correct 54 ms 70140 KB Output is correct
11 Correct 57 ms 70264 KB Output is correct
12 Correct 59 ms 70264 KB Output is correct
13 Correct 59 ms 70264 KB Output is correct
14 Correct 59 ms 70264 KB Output is correct
15 Correct 60 ms 70264 KB Output is correct
16 Correct 58 ms 70264 KB Output is correct
17 Correct 58 ms 70136 KB Output is correct
18 Correct 60 ms 70264 KB Output is correct
19 Correct 59 ms 70264 KB Output is correct
20 Correct 58 ms 70264 KB Output is correct
21 Correct 58 ms 70264 KB Output is correct
22 Correct 59 ms 70264 KB Output is correct
23 Correct 59 ms 70264 KB Output is correct
24 Correct 61 ms 70136 KB Output is correct
25 Correct 58 ms 70264 KB Output is correct
26 Correct 61 ms 70264 KB Output is correct
27 Correct 59 ms 70264 KB Output is correct
28 Correct 58 ms 70268 KB Output is correct
29 Correct 58 ms 70264 KB Output is correct
30 Correct 60 ms 70264 KB Output is correct
31 Correct 59 ms 70264 KB Output is correct
32 Correct 67 ms 70264 KB Output is correct
33 Correct 59 ms 70264 KB Output is correct
34 Correct 58 ms 70248 KB Output is correct
35 Correct 59 ms 70248 KB Output is correct
36 Correct 58 ms 70264 KB Output is correct
37 Correct 62 ms 70248 KB Output is correct
38 Correct 58 ms 70264 KB Output is correct
39 Correct 59 ms 70264 KB Output is correct
40 Correct 59 ms 70248 KB Output is correct
41 Correct 61 ms 70312 KB Output is correct
42 Correct 57 ms 70248 KB Output is correct
43 Correct 58 ms 70268 KB Output is correct
44 Correct 59 ms 70136 KB Output is correct
45 Correct 62 ms 70392 KB Output is correct
46 Correct 68 ms 71416 KB Output is correct
47 Correct 66 ms 71544 KB Output is correct
48 Correct 66 ms 71416 KB Output is correct
49 Correct 61 ms 70648 KB Output is correct
50 Correct 59 ms 70648 KB Output is correct
51 Correct 62 ms 70796 KB Output is correct
52 Correct 65 ms 71716 KB Output is correct
53 Correct 61 ms 71648 KB Output is correct
54 Correct 64 ms 71672 KB Output is correct
55 Correct 65 ms 71676 KB Output is correct
56 Correct 64 ms 71544 KB Output is correct
57 Correct 70 ms 71420 KB Output is correct
58 Correct 69 ms 71416 KB Output is correct
59 Correct 68 ms 71416 KB Output is correct
60 Correct 70 ms 71544 KB Output is correct
61 Correct 62 ms 71544 KB Output is correct
62 Correct 64 ms 71612 KB Output is correct
63 Correct 64 ms 71544 KB Output is correct
64 Correct 65 ms 71416 KB Output is correct
65 Correct 64 ms 71416 KB Output is correct
66 Correct 65 ms 71544 KB Output is correct
67 Correct 68 ms 71416 KB Output is correct
68 Correct 57 ms 70644 KB Output is correct
69 Correct 63 ms 71672 KB Output is correct
70 Correct 64 ms 71620 KB Output is correct
71 Correct 63 ms 71544 KB Output is correct
72 Correct 68 ms 71544 KB Output is correct
73 Correct 67 ms 71416 KB Output is correct
74 Correct 62 ms 71672 KB Output is correct
75 Correct 64 ms 71548 KB Output is correct
76 Correct 65 ms 71544 KB Output is correct
77 Correct 64 ms 71476 KB Output is correct
78 Correct 63 ms 71420 KB Output is correct
79 Correct 63 ms 71416 KB Output is correct
80 Correct 64 ms 71416 KB Output is correct
81 Correct 63 ms 71420 KB Output is correct
82 Correct 65 ms 71544 KB Output is correct
83 Correct 64 ms 71416 KB Output is correct
84 Correct 65 ms 71536 KB Output is correct
85 Correct 64 ms 71416 KB Output is correct
86 Correct 63 ms 71416 KB Output is correct

Subtask #3
84.0 / 84.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 70008 KB Output is correct
2 Correct 52 ms 70008 KB Output is correct
3 Correct 58 ms 70136 KB Output is correct
4 Correct 60 ms 70140 KB Output is correct
5 Correct 58 ms 70264 KB Output is correct
6 Correct 58 ms 70272 KB Output is correct
7 Correct 59 ms 70264 KB Output is correct
8 Correct 54 ms 70136 KB Output is correct
9 Correct 55 ms 70136 KB Output is correct
10 Correct 54 ms 70140 KB Output is correct
11 Correct 57 ms 70264 KB Output is correct
12 Correct 59 ms 70264 KB Output is correct
13 Correct 59 ms 70264 KB Output is correct
14 Correct 59 ms 70264 KB Output is correct
15 Correct 60 ms 70264 KB Output is correct
16 Correct 58 ms 70264 KB Output is correct
17 Correct 58 ms 70136 KB Output is correct
18 Correct 60 ms 70264 KB Output is correct
19 Correct 59 ms 70264 KB Output is correct
20 Correct 58 ms 70264 KB Output is correct
21 Correct 58 ms 70264 KB Output is correct
22 Correct 59 ms 70264 KB Output is correct
23 Correct 59 ms 70264 KB Output is correct
24 Correct 61 ms 70136 KB Output is correct
25 Correct 58 ms 70264 KB Output is correct
26 Correct 61 ms 70264 KB Output is correct
27 Correct 59 ms 70264 KB Output is correct
28 Correct 58 ms 70268 KB Output is correct
29 Correct 58 ms 70264 KB Output is correct
30 Correct 60 ms 70264 KB Output is correct
31 Correct 59 ms 70264 KB Output is correct
32 Correct 67 ms 70264 KB Output is correct
33 Correct 59 ms 70264 KB Output is correct
34 Correct 58 ms 70248 KB Output is correct
35 Correct 59 ms 70248 KB Output is correct
36 Correct 58 ms 70264 KB Output is correct
37 Correct 62 ms 70248 KB Output is correct
38 Correct 58 ms 70264 KB Output is correct
39 Correct 59 ms 70264 KB Output is correct
40 Correct 59 ms 70248 KB Output is correct
41 Correct 61 ms 70312 KB Output is correct
42 Correct 57 ms 70248 KB Output is correct
43 Correct 58 ms 70268 KB Output is correct
44 Correct 59 ms 70136 KB Output is correct
45 Correct 62 ms 70392 KB Output is correct
46 Correct 68 ms 71416 KB Output is correct
47 Correct 66 ms 71544 KB Output is correct
48 Correct 66 ms 71416 KB Output is correct
49 Correct 61 ms 70648 KB Output is correct
50 Correct 59 ms 70648 KB Output is correct
51 Correct 62 ms 70796 KB Output is correct
52 Correct 65 ms 71716 KB Output is correct
53 Correct 61 ms 71648 KB Output is correct
54 Correct 64 ms 71672 KB Output is correct
55 Correct 65 ms 71676 KB Output is correct
56 Correct 64 ms 71544 KB Output is correct
57 Correct 70 ms 71420 KB Output is correct
58 Correct 69 ms 71416 KB Output is correct
59 Correct 68 ms 71416 KB Output is correct
60 Correct 70 ms 71544 KB Output is correct
61 Correct 62 ms 71544 KB Output is correct
62 Correct 64 ms 71612 KB Output is correct
63 Correct 64 ms 71544 KB Output is correct
64 Correct 65 ms 71416 KB Output is correct
65 Correct 64 ms 71416 KB Output is correct
66 Correct 65 ms 71544 KB Output is correct
67 Correct 68 ms 71416 KB Output is correct
68 Correct 57 ms 70644 KB Output is correct
69 Correct 63 ms 71672 KB Output is correct
70 Correct 64 ms 71620 KB Output is correct
71 Correct 63 ms 71544 KB Output is correct
72 Correct 68 ms 71544 KB Output is correct
73 Correct 67 ms 71416 KB Output is correct
74 Correct 62 ms 71672 KB Output is correct
75 Correct 64 ms 71548 KB Output is correct
76 Correct 65 ms 71544 KB Output is correct
77 Correct 64 ms 71476 KB Output is correct
78 Correct 63 ms 71420 KB Output is correct
79 Correct 63 ms 71416 KB Output is correct
80 Correct 64 ms 71416 KB Output is correct
81 Correct 63 ms 71420 KB Output is correct
82 Correct 65 ms 71544 KB Output is correct
83 Correct 64 ms 71416 KB Output is correct
84 Correct 65 ms 71536 KB Output is correct
85 Correct 64 ms 71416 KB Output is correct
86 Correct 63 ms 71416 KB Output is correct
87 Correct 82 ms 73720 KB Output is correct
88 Correct 140 ms 81012 KB Output is correct
89 Correct 453 ms 106476 KB Output is correct
90 Correct 409 ms 106472 KB Output is correct
91 Correct 411 ms 106496 KB Output is correct
92 Correct 182 ms 86508 KB Output is correct
93 Correct 184 ms 86508 KB Output is correct
94 Correct 185 ms 86380 KB Output is correct
95 Correct 223 ms 111084 KB Output is correct
96 Correct 237 ms 111468 KB Output is correct
97 Correct 235 ms 111468 KB Output is correct
98 Correct 235 ms 111468 KB Output is correct
99 Correct 237 ms 108648 KB Output is correct
100 Correct 486 ms 98412 KB Output is correct
101 Correct 525 ms 98668 KB Output is correct
102 Correct 545 ms 98668 KB Output is correct
103 Correct 547 ms 98540 KB Output is correct
104 Correct 254 ms 108520 KB Output is correct
105 Correct 263 ms 108520 KB Output is correct
106 Correct 267 ms 108524 KB Output is correct
107 Correct 371 ms 104940 KB Output is correct
108 Correct 381 ms 105196 KB Output is correct
109 Correct 403 ms 105576 KB Output is correct
110 Correct 165 ms 85096 KB Output is correct
111 Correct 229 ms 111080 KB Output is correct
112 Correct 225 ms 110184 KB Output is correct
113 Correct 217 ms 107116 KB Output is correct
114 Correct 483 ms 98388 KB Output is correct
115 Correct 499 ms 97320 KB Output is correct
116 Correct 230 ms 107244 KB Output is correct
117 Correct 244 ms 106988 KB Output is correct
118 Correct 243 ms 106604 KB Output is correct
119 Correct 237 ms 106420 KB Output is correct
120 Correct 219 ms 105836 KB Output is correct
121 Correct 220 ms 105708 KB Output is correct
122 Correct 233 ms 105448 KB Output is correct
123 Correct 262 ms 106988 KB Output is correct
124 Correct 270 ms 106604 KB Output is correct
125 Correct 264 ms 106472 KB Output is correct
126 Correct 248 ms 106092 KB Output is correct
127 Correct 247 ms 105664 KB Output is correct
128 Correct 244 ms 105324 KB Output is correct