oj.uz

Submission #263569

# Submission time Handle Problem Language Result Execution time Memory
263569 2020-08-13T19:38:30 Z doowey Construction of Highway (JOI18_construction) C++14
100 / 100
 1216 ms 130140 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<int, int> pii;

#define fi first
#define se second
#define mp make_pair
#define fastIO ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);

const int N = (int)1e5 + 10;

int A[N], B[N], C[N];
vector<int> T[N];
int subt[N];
int dep[N];
int link[N];
int par[N];

void dfs(int u){
    subt[u]=1;
    for(auto x : T[u]){
        dep[x]=dep[u]+1;
        par[x]=u;
        dfs(x);
        subt[u]+=subt[x];
    }
}

void hld(int u){
    for(auto x : T[u]){
        if(subt[x] > (subt[u] + 1) / 2){
            link[x]=link[u];
        }
        else{
            link[x]=x;
        }
        hld(x);
    }
}

deque<pii> vals[N];

vector<int> ups;

int lim;
int tree[N * 2];

void upd(int id, int v){
    id += lim;
    while(id > 0){
        tree[id] += v;
        ups.push_back(id);
        id /= 2;
    }
}

int get(int l, int r){
    int cnt = 0;
    l += lim;
    r += lim;
    while(l <= r){
        if(l % 2 == 1) cnt += tree[l ++];
        if(r % 2 == 0) cnt += tree[r -- ];
        l /= 2;
        r /= 2;
    }
    return cnt;
}

ll setv(int node, int bb){
    ll ret = 0;
    int en;
    int len;
    int cur;
    int low;
    vector<pii> lines;
    vector<pii> curs;
    while(1){
        en = link[node];
        len = dep[node]-dep[en]+1;
        cur = len;
        curs.clear();
        while(cur > 0){
            low = min(cur, vals[en].back().fi);
            curs.push_back(mp(low, vals[en].back().se));
            vals[en].back().fi -= low;
            cur -= low;
            if(vals[en].back().fi == 0)
                vals[en].pop_back();
        }
        reverse(curs.begin(), curs.end());
        for(auto x : curs)
            lines.push_back(x);
        vals[en].push_back(mp(len, bb));
        if(en == 1) break;
        node = par[en];
    }
    reverse(lines.begin(), lines.end());
    ups.clear();
    for(auto pq : lines){
        ret += get(pq.se + 1, lim - 1) * 1ll * pq.fi;
        upd(pq.se, pq.fi);
    }
    for(auto x : ups){
        tree[x]=0;
    }
    return ret;
}

int main(){
    fastIO;
    int n;
    cin >> n;
    vector<int> x;
    for(int i = 1; i <= n; i ++ ){
        cin >> C[i];
        x.push_back(C[i]);
    }
    sort(x.begin(), x.end());
    x.resize(unique(x.begin(), x.end()) - x.begin());
    lim = x.size();
    for(int i = 1; i <= n; i ++ ){
        C[i] = lower_bound(x.begin(), x.end(), C[i]) - x.begin();
    }
    int u, v;
    for(int i = 1; i < n; i ++ ){
        cin >> A[i] >> B[i];
        T[A[i]].push_back(B[i]);
    }
    link[1]=1;
    dfs(1);
    hld(1);
    par[1]=1;
    vals[1].push_back(mp(1, C[1]));
    for(int i = 1; i < n; i ++ ){
        cout << setv(A[i], C[B[i]]) << "\n";
        if(vals[link[B[i]]].empty() || vals[link[B[i]]].front().se != C[B[i]]){
            vals[link[B[i]]].push_front(mp(1, C[B[i]]));
        }
        else{
            vals[link[B[i]]].front().fi ++ ;
        }
    }
    return 0;
}

Compilation message

construction.cpp: In function 'int main()':
construction.cpp:128:9: warning: unused variable 'u' [-Wunused-variable]
  128 |     int u, v;
      |         ^
construction.cpp:128:12: warning: unused variable 'v' [-Wunused-variable]
  128 |     int u, v;
      |            ^

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 70008 KB Output is correct
2 Correct 53 ms 70008 KB Output is correct
3 Correct 60 ms 70136 KB Output is correct
4 Correct 72 ms 70188 KB Output is correct
5 Correct 60 ms 70292 KB Output is correct
6 Correct 59 ms 70264 KB Output is correct
7 Correct 59 ms 70320 KB Output is correct
8 Correct 59 ms 70152 KB Output is correct
9 Correct 61 ms 70136 KB Output is correct
10 Correct 59 ms 70136 KB Output is correct
11 Correct 65 ms 70300 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 62 ms 70264 KB Output is correct
16 Correct 60 ms 70308 KB Output is correct
17 Correct 59 ms 70332 KB Output is correct
18 Correct 62 ms 70392 KB Output is correct
19 Correct 59 ms 70264 KB Output is correct
20 Correct 63 ms 70268 KB Output is correct
21 Correct 61 ms 70204 KB Output is correct
22 Correct 59 ms 70264 KB Output is correct
23 Correct 59 ms 70296 KB Output is correct
24 Correct 61 ms 70264 KB Output is correct
25 Correct 59 ms 70268 KB Output is correct
26 Correct 59 ms 70136 KB Output is correct
27 Correct 58 ms 70264 KB Output is correct
28 Correct 60 ms 70200 KB Output is correct
29 Correct 59 ms 70264 KB Output is correct
30 Correct 63 ms 70356 KB Output is correct
31 Correct 81 ms 70264 KB Output is correct
32 Correct 58 ms 70264 KB Output is correct
33 Correct 58 ms 70136 KB Output is correct
34 Correct 69 ms 70260 KB Output is correct
35 Correct 58 ms 70260 KB Output is correct
36 Correct 59 ms 70136 KB Output is correct
37 Correct 58 ms 70204 KB Output is correct
38 Correct 59 ms 70264 KB Output is correct
39 Correct 58 ms 70264 KB Output is correct
40 Correct 57 ms 70240 KB Output is correct
41 Correct 57 ms 70260 KB Output is correct
42 Correct 57 ms 70136 KB Output is correct
43 Correct 58 ms 70264 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 54 ms 70008 KB Output is correct
2 Correct 53 ms 70008 KB Output is correct
3 Correct 60 ms 70136 KB Output is correct
4 Correct 72 ms 70188 KB Output is correct
5 Correct 60 ms 70292 KB Output is correct
6 Correct 59 ms 70264 KB Output is correct
7 Correct 59 ms 70320 KB Output is correct
8 Correct 59 ms 70152 KB Output is correct
9 Correct 61 ms 70136 KB Output is correct
10 Correct 59 ms 70136 KB Output is correct
11 Correct 65 ms 70300 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 62 ms 70264 KB Output is correct
16 Correct 60 ms 70308 KB Output is correct
17 Correct 59 ms 70332 KB Output is correct
18 Correct 62 ms 70392 KB Output is correct
19 Correct 59 ms 70264 KB Output is correct
20 Correct 63 ms 70268 KB Output is correct
21 Correct 61 ms 70204 KB Output is correct
22 Correct 59 ms 70264 KB Output is correct
23 Correct 59 ms 70296 KB Output is correct
24 Correct 61 ms 70264 KB Output is correct
25 Correct 59 ms 70268 KB Output is correct
26 Correct 59 ms 70136 KB Output is correct
27 Correct 58 ms 70264 KB Output is correct
28 Correct 60 ms 70200 KB Output is correct
29 Correct 59 ms 70264 KB Output is correct
30 Correct 63 ms 70356 KB Output is correct
31 Correct 81 ms 70264 KB Output is correct
32 Correct 58 ms 70264 KB Output is correct
33 Correct 58 ms 70136 KB Output is correct
34 Correct 69 ms 70260 KB Output is correct
35 Correct 58 ms 70260 KB Output is correct
36 Correct 59 ms 70136 KB Output is correct
37 Correct 58 ms 70204 KB Output is correct
38 Correct 59 ms 70264 KB Output is correct
39 Correct 58 ms 70264 KB Output is correct
40 Correct 57 ms 70240 KB Output is correct
41 Correct 57 ms 70260 KB Output is correct
42 Correct 57 ms 70136 KB Output is correct
43 Correct 58 ms 70264 KB Output is correct
44 Correct 58 ms 70136 KB Output is correct
45 Correct 59 ms 70524 KB Output is correct
46 Correct 68 ms 72184 KB Output is correct
47 Correct 69 ms 72184 KB Output is correct
48 Correct 70 ms 72184 KB Output is correct
49 Correct 57 ms 70648 KB Output is correct
50 Correct 57 ms 70652 KB Output is correct
51 Correct 57 ms 70648 KB Output is correct
52 Correct 62 ms 71672 KB Output is correct
53 Correct 65 ms 71800 KB Output is correct
54 Correct 62 ms 71800 KB Output is correct
55 Correct 63 ms 71800 KB Output is correct
56 Correct 64 ms 71420 KB Output is correct
57 Correct 77 ms 72440 KB Output is correct
58 Correct 79 ms 72592 KB Output is correct
59 Correct 84 ms 72440 KB Output is correct
60 Correct 75 ms 72440 KB Output is correct
61 Correct 67 ms 71448 KB Output is correct
62 Correct 63 ms 71416 KB Output is correct
63 Correct 63 ms 71544 KB Output is correct
64 Correct 67 ms 72204 KB Output is correct
65 Correct 75 ms 72184 KB Output is correct
66 Correct 75 ms 72184 KB Output is correct
67 Correct 78 ms 72184 KB Output is correct
68 Correct 57 ms 70520 KB Output is correct
69 Correct 63 ms 71672 KB Output is correct
70 Correct 61 ms 71544 KB Output is correct
71 Correct 60 ms 71416 KB Output is correct
72 Correct 74 ms 72440 KB Output is correct
73 Correct 73 ms 72316 KB Output is correct
74 Correct 61 ms 71424 KB Output is correct
75 Correct 63 ms 71416 KB Output is correct
76 Correct 64 ms 71416 KB Output is correct
77 Correct 63 ms 71416 KB Output is correct
78 Correct 62 ms 71416 KB Output is correct
79 Correct 61 ms 71416 KB Output is correct
80 Correct 63 ms 71416 KB Output is correct
81 Correct 63 ms 71416 KB Output is correct
82 Correct 64 ms 71416 KB Output is correct
83 Correct 64 ms 71544 KB Output is correct
84 Correct 62 ms 71416 KB Output is correct
85 Correct 62 ms 71416 KB Output is correct
86 Correct 62 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 53 ms 70008 KB Output is correct
3 Correct 60 ms 70136 KB Output is correct
4 Correct 72 ms 70188 KB Output is correct
5 Correct 60 ms 70292 KB Output is correct
6 Correct 59 ms 70264 KB Output is correct
7 Correct 59 ms 70320 KB Output is correct
8 Correct 59 ms 70152 KB Output is correct
9 Correct 61 ms 70136 KB Output is correct
10 Correct 59 ms 70136 KB Output is correct
11 Correct 65 ms 70300 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 62 ms 70264 KB Output is correct
16 Correct 60 ms 70308 KB Output is correct
17 Correct 59 ms 70332 KB Output is correct
18 Correct 62 ms 70392 KB Output is correct
19 Correct 59 ms 70264 KB Output is correct
20 Correct 63 ms 70268 KB Output is correct
21 Correct 61 ms 70204 KB Output is correct
22 Correct 59 ms 70264 KB Output is correct
23 Correct 59 ms 70296 KB Output is correct
24 Correct 61 ms 70264 KB Output is correct
25 Correct 59 ms 70268 KB Output is correct
26 Correct 59 ms 70136 KB Output is correct
27 Correct 58 ms 70264 KB Output is correct
28 Correct 60 ms 70200 KB Output is correct
29 Correct 59 ms 70264 KB Output is correct
30 Correct 63 ms 70356 KB Output is correct
31 Correct 81 ms 70264 KB Output is correct
32 Correct 58 ms 70264 KB Output is correct
33 Correct 58 ms 70136 KB Output is correct
34 Correct 69 ms 70260 KB Output is correct
35 Correct 58 ms 70260 KB Output is correct
36 Correct 59 ms 70136 KB Output is correct
37 Correct 58 ms 70204 KB Output is correct
38 Correct 59 ms 70264 KB Output is correct
39 Correct 58 ms 70264 KB Output is correct
40 Correct 57 ms 70240 KB Output is correct
41 Correct 57 ms 70260 KB Output is correct
42 Correct 57 ms 70136 KB Output is correct
43 Correct 58 ms 70264 KB Output is correct
44 Correct 58 ms 70136 KB Output is correct
45 Correct 59 ms 70524 KB Output is correct
46 Correct 68 ms 72184 KB Output is correct
47 Correct 69 ms 72184 KB Output is correct
48 Correct 70 ms 72184 KB Output is correct
49 Correct 57 ms 70648 KB Output is correct
50 Correct 57 ms 70652 KB Output is correct
51 Correct 57 ms 70648 KB Output is correct
52 Correct 62 ms 71672 KB Output is correct
53 Correct 65 ms 71800 KB Output is correct
54 Correct 62 ms 71800 KB Output is correct
55 Correct 63 ms 71800 KB Output is correct
56 Correct 64 ms 71420 KB Output is correct
57 Correct 77 ms 72440 KB Output is correct
58 Correct 79 ms 72592 KB Output is correct
59 Correct 84 ms 72440 KB Output is correct
60 Correct 75 ms 72440 KB Output is correct
61 Correct 67 ms 71448 KB Output is correct
62 Correct 63 ms 71416 KB Output is correct
63 Correct 63 ms 71544 KB Output is correct
64 Correct 67 ms 72204 KB Output is correct
65 Correct 75 ms 72184 KB Output is correct
66 Correct 75 ms 72184 KB Output is correct
67 Correct 78 ms 72184 KB Output is correct
68 Correct 57 ms 70520 KB Output is correct
69 Correct 63 ms 71672 KB Output is correct
70 Correct 61 ms 71544 KB Output is correct
71 Correct 60 ms 71416 KB Output is correct
72 Correct 74 ms 72440 KB Output is correct
73 Correct 73 ms 72316 KB Output is correct
74 Correct 61 ms 71424 KB Output is correct
75 Correct 63 ms 71416 KB Output is correct
76 Correct 64 ms 71416 KB Output is correct
77 Correct 63 ms 71416 KB Output is correct
78 Correct 62 ms 71416 KB Output is correct
79 Correct 61 ms 71416 KB Output is correct
80 Correct 63 ms 71416 KB Output is correct
81 Correct 63 ms 71416 KB Output is correct
82 Correct 64 ms 71416 KB Output is correct
83 Correct 64 ms 71544 KB Output is correct
84 Correct 62 ms 71416 KB Output is correct
85 Correct 62 ms 71416 KB Output is correct
86 Correct 62 ms 71416 KB Output is correct
87 Correct 92 ms 75384 KB Output is correct
88 Correct 193 ms 86264 KB Output is correct
89 Correct 627 ms 123928 KB Output is correct
90 Correct 640 ms 123760 KB Output is correct
91 Correct 606 ms 123820 KB Output is correct
92 Correct 178 ms 84020 KB Output is correct
93 Correct 202 ms 84072 KB Output is correct
94 Correct 211 ms 84080 KB Output is correct
95 Correct 259 ms 111088 KB Output is correct
96 Correct 304 ms 111472 KB Output is correct
97 Correct 269 ms 111468 KB Output is correct
98 Correct 265 ms 111504 KB Output is correct
99 Correct 273 ms 106220 KB Output is correct
100 Correct 1105 ms 129804 KB Output is correct
101 Correct 1195 ms 130116 KB Output is correct
102 Correct 1216 ms 130092 KB Output is correct
103 Correct 1191 ms 130140 KB Output is correct
104 Correct 263 ms 106176 KB Output is correct
105 Correct 268 ms 106096 KB Output is correct
106 Correct 270 ms 106256 KB Output is correct
107 Correct 445 ms 122124 KB Output is correct
108 Correct 533 ms 122364 KB Output is correct
109 Correct 635 ms 122992 KB Output is correct
110 Correct 167 ms 82672 KB Output is correct
111 Correct 239 ms 111080 KB Output is correct
112 Correct 221 ms 108020 KB Output is correct
113 Correct 225 ms 104688 KB Output is correct
114 Correct 1066 ms 129816 KB Output is correct
115 Correct 925 ms 128676 KB Output is correct
116 Correct 243 ms 104840 KB Output is correct
117 Correct 289 ms 104560 KB Output is correct
118 Correct 305 ms 104360 KB Output is correct
119 Correct 319 ms 104048 KB Output is correct
120 Correct 228 ms 103448 KB Output is correct
121 Correct 215 ms 103148 KB Output is correct
122 Correct 227 ms 102896 KB Output is correct
123 Correct 288 ms 104944 KB Output is correct
124 Correct 279 ms 104312 KB Output is correct
125 Correct 285 ms 104052 KB Output is correct
126 Correct 228 ms 103536 KB Output is correct
127 Correct 230 ms 103152 KB Output is correct
128 Correct 228 ms 103024 KB Output is correct