oj.uz

Submission #204643

# Submission time Handle Problem Language Result Execution time Memory
204643 2020-02-26T12:52:37 Z Atill83 Construction of Highway (JOI18_construction) C++14
100 / 100
 573 ms 107112 KB 
#include <bits/stdc++.h>
#define ff first
#define ss second
#define endl '\n'
using namespace std;
const long long INF = (long long) 1e18;
const int mod = (int) 1e9+7;
const int MAXN = (int) 1e5+5;

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
ll n;
int val[MAXN];
vector<int> adj[MAXN];
int t[MAXN];
int head[MAXN];
int sz[MAXN];
int dep[MAXN];
int par[MAXN];
vector<pii> eg;
deque<pii> hl[MAXN];
void upd(int v, int val){
    v++;
    for(; v < MAXN; v += (v&-v)) t[v] += val;
}


ll que(int v){
    v++;
    ll ans = 0;
    for(; v; v -= (v&-v)) ans += t[v];
    return ans;
}

void dfs(int v){
    sz[v] = 1;
    for(int i: adj[v]){
        dep[i] = dep[v] + 1;
        dfs(i);
        par[i] = v;
        sz[v] += sz[i];
    }
}
void dfs2(int v){
    for(int i = 0; i < adj[v].size();i++){
        if(sz[adj[v][i]] > sz[adj[v][0]]){
            swap(adj[v][0], adj[v][i]);
        }
    }
    for(int i: adj[v]){
        head[i] = (i == adj[v][0] ? head[v] : i);
        dfs2(i);
    }
}

void add_edge(int yer, int val){
    while(yer != -1){
        int cikis = head[yer];
        int sz = dep[yer] - dep[cikis] + 1;
        while(hl[cikis].size() > 0){
            pii &i = hl[cikis][0];
            if(sz >= i.ff){
                sz -= i.ff;
                hl[cikis].pop_front();
            }else{
                i.ff -= sz;
                break;
            }
        }
        hl[cikis].push_front({dep[yer] - dep[cikis] + 1, val});
        yer = par[cikis];
    }
}

ll cc(int yer){
    vector<pii> inv;
    vector<int> sayi;
    while(yer != -1){
        int cikis = head[yer];
        int sz = dep[yer] - dep[cikis] + 1;
        vector<pii> sim;
        for(pii &i: hl[cikis]){
            if(sz >= i.ff){
                sim.push_back(i);
                sz -= i.ff;
                sayi.push_back(i.ss);
            }else{
                sim.push_back({sz, i.ss});
                sayi.push_back(i.ss);
                break;
            }
        }
        for(int i = sim.size() - 1; i >= 0; i--){
            inv.push_back(sim[i]);
        }
        yer = par[cikis];
    }
    sort(sayi.begin(), sayi.end());sayi.erase(unique(sayi.begin(), sayi.end()), sayi.end());
    reverse(inv.begin(), inv.end());
    ll ans = 0;
    ll tot = 0;
    for(pii &a: inv){
        //cout<<a.ff<<" "<<a.ss<<endl;
        a.ss = lower_bound(sayi.begin(), sayi.end(), a.ss) - sayi.begin();
        ans += (tot - que(a.ss))*a.ff;
        tot += a.ff; 
        upd(a.ss, a.ff);
    }
    for(pii &a: inv){
        upd(a.ss, -a.ff);
    }
    return ans;
}





int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);cout.tie(nullptr);

    #ifdef Local
        freopen("C:/Users/Admin/Desktop/Yazilim/C/IO/int.txt","r",stdin);
        freopen("C:/Users/Admin/Desktop/Yazilim/C/IO/out.txt","w",stdout);
    #endif

    cin>>n;

    for(int i = 1; i <= n; i++){
        cin>>val[i];
    }

    for(int i = 0; i < n - 1; i++){
        int a, b;
        cin>>a>>b;
        adj[a].push_back(b);
        eg.push_back({a, b});
    }
    par[1] = -1;
    head[1] = 1;
    dfs(1);
    dfs2(1);

    for(pii i: eg){
        //if(i.ss == 5)
        cout<<cc(i.ff)<<endl;
        add_edge(i.ss, val[i.ss]);
    }



    #ifdef Local
        cout<<endl<<fixed<<setprecision(2)<<1000.0 * clock() / CLOCKS_PER_SEC<< " milliseconds ";
    #endif
}

Compilation message

construction.cpp: In function 'void dfs2(int)':
construction.cpp:47:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0; i < adj[v].size();i++){
                    ~~^~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 70008 KB Output is correct
2 Correct 51 ms 70008 KB Output is correct
3 Correct 56 ms 70136 KB Output is correct
4 Correct 58 ms 70136 KB Output is correct
5 Correct 56 ms 70136 KB Output is correct
6 Correct 60 ms 70248 KB Output is correct
7 Correct 56 ms 70264 KB Output is correct
8 Correct 55 ms 70136 KB Output is correct
9 Correct 52 ms 70136 KB Output is correct
10 Correct 53 ms 70136 KB Output is correct
11 Correct 56 ms 70264 KB Output is correct
12 Correct 68 ms 70392 KB Output is correct
13 Correct 58 ms 70264 KB Output is correct
14 Correct 56 ms 70260 KB Output is correct
15 Correct 61 ms 70136 KB Output is correct
16 Correct 60 ms 70136 KB Output is correct
17 Correct 61 ms 70264 KB Output is correct
18 Correct 60 ms 70136 KB Output is correct
19 Correct 63 ms 70260 KB Output is correct
20 Correct 56 ms 70264 KB Output is correct
21 Correct 56 ms 70260 KB Output is correct
22 Correct 59 ms 70264 KB Output is correct
23 Correct 57 ms 70140 KB Output is correct
24 Correct 65 ms 70264 KB Output is correct
25 Correct 60 ms 70136 KB Output is correct
26 Correct 54 ms 70136 KB Output is correct
27 Correct 64 ms 70264 KB Output is correct
28 Correct 59 ms 70264 KB Output is correct
29 Correct 62 ms 70264 KB Output is correct
30 Correct 67 ms 70140 KB Output is correct
31 Correct 62 ms 70264 KB Output is correct
32 Correct 60 ms 70140 KB Output is correct
33 Correct 62 ms 70392 KB Output is correct
34 Correct 59 ms 70136 KB Output is correct
35 Correct 70 ms 70252 KB Output is correct
36 Correct 60 ms 70136 KB Output is correct
37 Correct 58 ms 70136 KB Output is correct
38 Correct 63 ms 70136 KB Output is correct
39 Correct 65 ms 70136 KB Output is correct
40 Correct 59 ms 70136 KB Output is correct
41 Correct 61 ms 70252 KB Output is correct
42 Correct 60 ms 70264 KB Output is correct
43 Correct 59 ms 70136 KB Output is correct
44 Correct 58 ms 70136 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 70008 KB Output is correct
2 Correct 51 ms 70008 KB Output is correct
3 Correct 56 ms 70136 KB Output is correct
4 Correct 58 ms 70136 KB Output is correct
5 Correct 56 ms 70136 KB Output is correct
6 Correct 60 ms 70248 KB Output is correct
7 Correct 56 ms 70264 KB Output is correct
8 Correct 55 ms 70136 KB Output is correct
9 Correct 52 ms 70136 KB Output is correct
10 Correct 53 ms 70136 KB Output is correct
11 Correct 56 ms 70264 KB Output is correct
12 Correct 68 ms 70392 KB Output is correct
13 Correct 58 ms 70264 KB Output is correct
14 Correct 56 ms 70260 KB Output is correct
15 Correct 61 ms 70136 KB Output is correct
16 Correct 60 ms 70136 KB Output is correct
17 Correct 61 ms 70264 KB Output is correct
18 Correct 60 ms 70136 KB Output is correct
19 Correct 63 ms 70260 KB Output is correct
20 Correct 56 ms 70264 KB Output is correct
21 Correct 56 ms 70260 KB Output is correct
22 Correct 59 ms 70264 KB Output is correct
23 Correct 57 ms 70140 KB Output is correct
24 Correct 65 ms 70264 KB Output is correct
25 Correct 60 ms 70136 KB Output is correct
26 Correct 54 ms 70136 KB Output is correct
27 Correct 64 ms 70264 KB Output is correct
28 Correct 59 ms 70264 KB Output is correct
29 Correct 62 ms 70264 KB Output is correct
30 Correct 67 ms 70140 KB Output is correct
31 Correct 62 ms 70264 KB Output is correct
32 Correct 60 ms 70140 KB Output is correct
33 Correct 62 ms 70392 KB Output is correct
34 Correct 59 ms 70136 KB Output is correct
35 Correct 70 ms 70252 KB Output is correct
36 Correct 60 ms 70136 KB Output is correct
37 Correct 58 ms 70136 KB Output is correct
38 Correct 63 ms 70136 KB Output is correct
39 Correct 65 ms 70136 KB Output is correct
40 Correct 59 ms 70136 KB Output is correct
41 Correct 61 ms 70252 KB Output is correct
42 Correct 60 ms 70264 KB Output is correct
43 Correct 59 ms 70136 KB Output is correct
44 Correct 58 ms 70136 KB Output is correct
45 Correct 61 ms 70392 KB Output is correct
46 Correct 67 ms 71284 KB Output is correct
47 Correct 72 ms 71416 KB Output is correct
48 Correct 68 ms 71392 KB Output is correct
49 Correct 56 ms 70520 KB Output is correct
50 Correct 59 ms 70648 KB Output is correct
51 Correct 57 ms 70528 KB Output is correct
52 Correct 62 ms 71544 KB Output is correct
53 Correct 65 ms 71544 KB Output is correct
54 Correct 68 ms 71544 KB Output is correct
55 Correct 62 ms 71544 KB Output is correct
56 Correct 63 ms 71416 KB Output is correct
57 Correct 80 ms 71288 KB Output is correct
58 Correct 75 ms 71416 KB Output is correct
59 Correct 76 ms 71392 KB Output is correct
60 Correct 75 ms 71288 KB Output is correct
61 Correct 63 ms 71416 KB Output is correct
62 Correct 71 ms 71376 KB Output is correct
63 Correct 64 ms 71416 KB Output is correct
64 Correct 67 ms 71416 KB Output is correct
65 Correct 67 ms 71548 KB Output is correct
66 Correct 67 ms 71288 KB Output is correct
67 Correct 68 ms 71288 KB Output is correct
68 Correct 60 ms 70520 KB Output is correct
69 Correct 64 ms 71544 KB Output is correct
70 Correct 67 ms 71416 KB Output is correct
71 Correct 65 ms 71416 KB Output is correct
72 Correct 71 ms 71292 KB Output is correct
73 Correct 75 ms 71264 KB Output is correct
74 Correct 72 ms 71416 KB Output is correct
75 Correct 67 ms 71416 KB Output is correct
76 Correct 66 ms 71416 KB Output is correct
77 Correct 65 ms 71416 KB Output is correct
78 Correct 75 ms 71416 KB Output is correct
79 Correct 72 ms 71416 KB Output is correct
80 Correct 66 ms 71416 KB Output is correct
81 Correct 72 ms 71544 KB Output is correct
82 Correct 73 ms 71416 KB Output is correct
83 Correct 75 ms 71416 KB Output is correct
84 Correct 66 ms 71416 KB Output is correct
85 Correct 74 ms 71420 KB Output is correct
86 Correct 71 ms 71292 KB Output is correct

Subtask #3
84.0 / 84.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 70008 KB Output is correct
2 Correct 51 ms 70008 KB Output is correct
3 Correct 56 ms 70136 KB Output is correct
4 Correct 58 ms 70136 KB Output is correct
5 Correct 56 ms 70136 KB Output is correct
6 Correct 60 ms 70248 KB Output is correct
7 Correct 56 ms 70264 KB Output is correct
8 Correct 55 ms 70136 KB Output is correct
9 Correct 52 ms 70136 KB Output is correct
10 Correct 53 ms 70136 KB Output is correct
11 Correct 56 ms 70264 KB Output is correct
12 Correct 68 ms 70392 KB Output is correct
13 Correct 58 ms 70264 KB Output is correct
14 Correct 56 ms 70260 KB Output is correct
15 Correct 61 ms 70136 KB Output is correct
16 Correct 60 ms 70136 KB Output is correct
17 Correct 61 ms 70264 KB Output is correct
18 Correct 60 ms 70136 KB Output is correct
19 Correct 63 ms 70260 KB Output is correct
20 Correct 56 ms 70264 KB Output is correct
21 Correct 56 ms 70260 KB Output is correct
22 Correct 59 ms 70264 KB Output is correct
23 Correct 57 ms 70140 KB Output is correct
24 Correct 65 ms 70264 KB Output is correct
25 Correct 60 ms 70136 KB Output is correct
26 Correct 54 ms 70136 KB Output is correct
27 Correct 64 ms 70264 KB Output is correct
28 Correct 59 ms 70264 KB Output is correct
29 Correct 62 ms 70264 KB Output is correct
30 Correct 67 ms 70140 KB Output is correct
31 Correct 62 ms 70264 KB Output is correct
32 Correct 60 ms 70140 KB Output is correct
33 Correct 62 ms 70392 KB Output is correct
34 Correct 59 ms 70136 KB Output is correct
35 Correct 70 ms 70252 KB Output is correct
36 Correct 60 ms 70136 KB Output is correct
37 Correct 58 ms 70136 KB Output is correct
38 Correct 63 ms 70136 KB Output is correct
39 Correct 65 ms 70136 KB Output is correct
40 Correct 59 ms 70136 KB Output is correct
41 Correct 61 ms 70252 KB Output is correct
42 Correct 60 ms 70264 KB Output is correct
43 Correct 59 ms 70136 KB Output is correct
44 Correct 58 ms 70136 KB Output is correct
45 Correct 61 ms 70392 KB Output is correct
46 Correct 67 ms 71284 KB Output is correct
47 Correct 72 ms 71416 KB Output is correct
48 Correct 68 ms 71392 KB Output is correct
49 Correct 56 ms 70520 KB Output is correct
50 Correct 59 ms 70648 KB Output is correct
51 Correct 57 ms 70528 KB Output is correct
52 Correct 62 ms 71544 KB Output is correct
53 Correct 65 ms 71544 KB Output is correct
54 Correct 68 ms 71544 KB Output is correct
55 Correct 62 ms 71544 KB Output is correct
56 Correct 63 ms 71416 KB Output is correct
57 Correct 80 ms 71288 KB Output is correct
58 Correct 75 ms 71416 KB Output is correct
59 Correct 76 ms 71392 KB Output is correct
60 Correct 75 ms 71288 KB Output is correct
61 Correct 63 ms 71416 KB Output is correct
62 Correct 71 ms 71376 KB Output is correct
63 Correct 64 ms 71416 KB Output is correct
64 Correct 67 ms 71416 KB Output is correct
65 Correct 67 ms 71548 KB Output is correct
66 Correct 67 ms 71288 KB Output is correct
67 Correct 68 ms 71288 KB Output is correct
68 Correct 60 ms 70520 KB Output is correct
69 Correct 64 ms 71544 KB Output is correct
70 Correct 67 ms 71416 KB Output is correct
71 Correct 65 ms 71416 KB Output is correct
72 Correct 71 ms 71292 KB Output is correct
73 Correct 75 ms 71264 KB Output is correct
74 Correct 72 ms 71416 KB Output is correct
75 Correct 67 ms 71416 KB Output is correct
76 Correct 66 ms 71416 KB Output is correct
77 Correct 65 ms 71416 KB Output is correct
78 Correct 75 ms 71416 KB Output is correct
79 Correct 72 ms 71416 KB Output is correct
80 Correct 66 ms 71416 KB Output is correct
81 Correct 72 ms 71544 KB Output is correct
82 Correct 73 ms 71416 KB Output is correct
83 Correct 75 ms 71416 KB Output is correct
84 Correct 66 ms 71416 KB Output is correct
85 Correct 74 ms 71420 KB Output is correct
86 Correct 71 ms 71292 KB Output is correct
87 Correct 90 ms 73336 KB Output is correct
88 Correct 171 ms 79944 KB Output is correct
89 Correct 455 ms 102764 KB Output is correct
90 Correct 448 ms 102636 KB Output is correct
91 Correct 440 ms 102892 KB Output is correct
92 Correct 158 ms 82900 KB Output is correct
93 Correct 154 ms 83048 KB Output is correct
94 Correct 158 ms 83176 KB Output is correct
95 Correct 209 ms 106604 KB Output is correct
96 Correct 224 ms 107112 KB Output is correct
97 Correct 214 ms 106984 KB Output is correct
98 Correct 211 ms 106984 KB Output is correct
99 Correct 232 ms 105068 KB Output is correct
100 Correct 520 ms 94700 KB Output is correct
101 Correct 573 ms 95180 KB Output is correct
102 Correct 565 ms 95112 KB Output is correct
103 Correct 568 ms 95212 KB Output is correct
104 Correct 225 ms 105068 KB Output is correct
105 Correct 223 ms 105064 KB Output is correct
106 Correct 224 ms 105068 KB Output is correct
107 Correct 418 ms 101864 KB Output is correct
108 Correct 444 ms 102124 KB Output is correct
109 Correct 449 ms 102248 KB Output is correct
110 Correct 153 ms 82284 KB Output is correct
111 Correct 206 ms 106608 KB Output is correct
112 Correct 211 ms 106220 KB Output is correct
113 Correct 204 ms 104428 KB Output is correct
114 Correct 497 ms 94700 KB Output is correct
115 Correct 552 ms 94444 KB Output is correct
116 Correct 216 ms 104424 KB Output is correct
117 Correct 230 ms 103532 KB Output is correct
118 Correct 235 ms 103144 KB Output is correct
119 Correct 239 ms 102888 KB Output is correct
120 Correct 219 ms 103148 KB Output is correct
121 Correct 227 ms 102760 KB Output is correct
122 Correct 226 ms 102764 KB Output is correct
123 Correct 246 ms 103532 KB Output is correct
124 Correct 273 ms 103264 KB Output is correct
125 Correct 255 ms 102892 KB Output is correct
126 Correct 238 ms 103276 KB Output is correct
127 Correct 241 ms 102888 KB Output is correct
128 Correct 255 ms 102760 KB Output is correct