oj.uz

Submission #131937

# Submission time Handle Problem Language Result Execution time Memory
131937 2019-07-18T05:03:20 Z 송준혁(#3192) Construction of Highway (JOI18_construction) C++14
100 / 100
 769 ms 15852 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long LL;
typedef pair<int, int> pii;

int N;
int A[101010], B[101010], C[101010];
int L[101010], R[101010], P[101010], H[101010], num;
int Max[404040], BIT[101010], D[101010];
vector<int> adj[101010], comp;

void updMax(int id, int s, int e, int t, int v){
    if (e < t || t < s) return;
    if (s == e){
        Max[id] = v;
        return;
    }
    int mid = (s+e)/2;
    updMax(id*2, s, mid, t, v);
    updMax(id*2+1, mid+1, e, t, v);
    Max[id] = max(Max[id*2], Max[id*2+1]);
}

int RMQ(int id, int s, int e, int ts, int te){
    if (e < ts || te < s) return 0;
    if (ts <= s && e <= te) return Max[id];
    int mid = (s+e)/2;
    return max(RMQ(id*2, s, mid, ts, te), RMQ(id*2+1, mid+1, e, ts, te));
}

void updBIT(int t, int v){
    while (t<=N){
        BIT[t] += v;
        t += t & -t;
    }
}

int read(int t){
    int ret = 0;
    while (t){
        ret += BIT[t];
        t -= t & -t;
    }
    return ret;
}

void dfs(int u, int p){
    L[u] = ++num, P[u] = p;
    for (int v : adj[u]){
        if (v == p) continue;
        D[v] = D[u] + 1;
        dfs(v, u);
    }
    R[u] = num;
}

int main(){
    scanf("%d", &N);
    for (int i=1; i<=N; i++){
        scanf("%d", &C[i]);
        comp.push_back(C[i]);
    }
    sort(comp.begin(), comp.end());
    comp.erase(unique(comp.begin(), comp.end()), comp.end());
    for (int i=1; i<=N; i++) C[i] = lower_bound(comp.begin(), comp.end(), C[i])-comp.begin()+1;
    for (int i=2; i<=N; i++){
        scanf("%d %d", &A[i], &B[i]);
        adj[A[i]].push_back(B[i]);
        adj[B[i]].push_back(A[i]);
    }
    D[1] = 1, B[1] = 1;
    dfs(1, 0);
    updMax(1, 1, N, L[1], 1);
    for (int i=2; i<=N; i++){
        int u = A[i];
        LL ans = 0;
        vector<pii> E;
        while (u != 0){
            int v = B[RMQ(1, 1, N, L[u], R[u])];
            ans += (LL)(D[u]-D[H[v]]) * read(C[v]-1);
            updBIT(C[v], D[u]-D[H[v]]);
            E.push_back(pii(C[v], D[u]-D[H[v]]));
            int t = u;
            u = H[v], H[v] = t;
        }
        for (pii t : E) updBIT(t.first, -t.second);
        printf("%lld\n", ans);
        updMax(1, 1, N, L[B[i]], i);
    }
    return 0;
}

Compilation message

construction.cpp: In function 'int main()':
construction.cpp:58:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &N);
     ~~~~~^~~~~~~~~~
construction.cpp:60:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &C[i]);
         ~~~~~^~~~~~~~~~~~~
construction.cpp:67:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d", &A[i], &B[i]);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 2680 KB Output is correct
2 Correct 4 ms 2808 KB Output is correct
3 Correct 4 ms 2808 KB Output is correct
4 Correct 4 ms 2680 KB Output is correct
5 Correct 5 ms 2808 KB Output is correct
6 Correct 5 ms 2808 KB Output is correct
7 Correct 5 ms 2808 KB Output is correct
8 Correct 4 ms 2808 KB Output is correct
9 Correct 4 ms 2808 KB Output is correct
10 Correct 4 ms 2808 KB Output is correct
11 Correct 5 ms 2808 KB Output is correct
12 Correct 5 ms 2808 KB Output is correct
13 Correct 5 ms 2736 KB Output is correct
14 Correct 4 ms 2808 KB Output is correct
15 Correct 5 ms 2808 KB Output is correct
16 Correct 5 ms 2812 KB Output is correct
17 Correct 5 ms 2808 KB Output is correct
18 Correct 5 ms 2808 KB Output is correct
19 Correct 5 ms 2808 KB Output is correct
20 Correct 5 ms 2808 KB Output is correct
21 Correct 5 ms 2808 KB Output is correct
22 Correct 5 ms 2808 KB Output is correct
23 Correct 5 ms 2808 KB Output is correct
24 Correct 5 ms 2808 KB Output is correct
25 Correct 5 ms 2808 KB Output is correct
26 Correct 4 ms 2808 KB Output is correct
27 Correct 4 ms 2808 KB Output is correct
28 Correct 5 ms 2808 KB Output is correct
29 Correct 5 ms 2808 KB Output is correct
30 Correct 5 ms 2808 KB Output is correct
31 Correct 5 ms 2808 KB Output is correct
32 Correct 5 ms 2808 KB Output is correct
33 Correct 6 ms 2808 KB Output is correct
34 Correct 5 ms 2780 KB Output is correct
35 Correct 5 ms 2812 KB Output is correct
36 Correct 6 ms 2812 KB Output is correct
37 Correct 5 ms 2808 KB Output is correct
38 Correct 5 ms 2808 KB Output is correct
39 Correct 4 ms 2808 KB Output is correct
40 Correct 5 ms 2808 KB Output is correct
41 Correct 5 ms 2808 KB Output is correct
42 Correct 13 ms 2808 KB Output is correct
43 Correct 6 ms 2808 KB Output is correct
44 Correct 5 ms 2808 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 2680 KB Output is correct
2 Correct 4 ms 2808 KB Output is correct
3 Correct 4 ms 2808 KB Output is correct
4 Correct 4 ms 2680 KB Output is correct
5 Correct 5 ms 2808 KB Output is correct
6 Correct 5 ms 2808 KB Output is correct
7 Correct 5 ms 2808 KB Output is correct
8 Correct 4 ms 2808 KB Output is correct
9 Correct 4 ms 2808 KB Output is correct
10 Correct 4 ms 2808 KB Output is correct
11 Correct 5 ms 2808 KB Output is correct
12 Correct 5 ms 2808 KB Output is correct
13 Correct 5 ms 2736 KB Output is correct
14 Correct 4 ms 2808 KB Output is correct
15 Correct 5 ms 2808 KB Output is correct
16 Correct 5 ms 2812 KB Output is correct
17 Correct 5 ms 2808 KB Output is correct
18 Correct 5 ms 2808 KB Output is correct
19 Correct 5 ms 2808 KB Output is correct
20 Correct 5 ms 2808 KB Output is correct
21 Correct 5 ms 2808 KB Output is correct
22 Correct 5 ms 2808 KB Output is correct
23 Correct 5 ms 2808 KB Output is correct
24 Correct 5 ms 2808 KB Output is correct
25 Correct 5 ms 2808 KB Output is correct
26 Correct 4 ms 2808 KB Output is correct
27 Correct 4 ms 2808 KB Output is correct
28 Correct 5 ms 2808 KB Output is correct
29 Correct 5 ms 2808 KB Output is correct
30 Correct 5 ms 2808 KB Output is correct
31 Correct 5 ms 2808 KB Output is correct
32 Correct 5 ms 2808 KB Output is correct
33 Correct 6 ms 2808 KB Output is correct
34 Correct 5 ms 2780 KB Output is correct
35 Correct 5 ms 2812 KB Output is correct
36 Correct 6 ms 2812 KB Output is correct
37 Correct 5 ms 2808 KB Output is correct
38 Correct 5 ms 2808 KB Output is correct
39 Correct 4 ms 2808 KB Output is correct
40 Correct 5 ms 2808 KB Output is correct
41 Correct 5 ms 2808 KB Output is correct
42 Correct 13 ms 2808 KB Output is correct
43 Correct 6 ms 2808 KB Output is correct
44 Correct 5 ms 2808 KB Output is correct
45 Correct 7 ms 2808 KB Output is correct
46 Correct 13 ms 3064 KB Output is correct
47 Correct 14 ms 3064 KB Output is correct
48 Correct 13 ms 3064 KB Output is correct
49 Correct 9 ms 3320 KB Output is correct
50 Correct 10 ms 3192 KB Output is correct
51 Correct 9 ms 3192 KB Output is correct
52 Correct 10 ms 3192 KB Output is correct
53 Correct 10 ms 3192 KB Output is correct
54 Correct 10 ms 3192 KB Output is correct
55 Correct 10 ms 3192 KB Output is correct
56 Correct 10 ms 3192 KB Output is correct
57 Correct 16 ms 3064 KB Output is correct
58 Correct 17 ms 3064 KB Output is correct
59 Correct 17 ms 3064 KB Output is correct
60 Correct 17 ms 3064 KB Output is correct
61 Correct 11 ms 3192 KB Output is correct
62 Correct 10 ms 3192 KB Output is correct
63 Correct 10 ms 3192 KB Output is correct
64 Correct 12 ms 3064 KB Output is correct
65 Correct 12 ms 3064 KB Output is correct
66 Correct 12 ms 3064 KB Output is correct
67 Correct 12 ms 3036 KB Output is correct
68 Correct 10 ms 3192 KB Output is correct
69 Correct 10 ms 3192 KB Output is correct
70 Correct 9 ms 3196 KB Output is correct
71 Correct 9 ms 3188 KB Output is correct
72 Correct 17 ms 3064 KB Output is correct
73 Correct 17 ms 3064 KB Output is correct
74 Correct 9 ms 3064 KB Output is correct
75 Correct 10 ms 3064 KB Output is correct
76 Correct 10 ms 3064 KB Output is correct
77 Correct 10 ms 3064 KB Output is correct
78 Correct 9 ms 3068 KB Output is correct
79 Correct 9 ms 3128 KB Output is correct
80 Correct 9 ms 3064 KB Output is correct
81 Correct 10 ms 3064 KB Output is correct
82 Correct 10 ms 3064 KB Output is correct
83 Correct 10 ms 3064 KB Output is correct
84 Correct 9 ms 3064 KB Output is correct
85 Correct 9 ms 3064 KB Output is correct
86 Correct 10 ms 3064 KB Output is correct

Subtask #3
84.0 / 84.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 2680 KB Output is correct
2 Correct 4 ms 2808 KB Output is correct
3 Correct 4 ms 2808 KB Output is correct
4 Correct 4 ms 2680 KB Output is correct
5 Correct 5 ms 2808 KB Output is correct
6 Correct 5 ms 2808 KB Output is correct
7 Correct 5 ms 2808 KB Output is correct
8 Correct 4 ms 2808 KB Output is correct
9 Correct 4 ms 2808 KB Output is correct
10 Correct 4 ms 2808 KB Output is correct
11 Correct 5 ms 2808 KB Output is correct
12 Correct 5 ms 2808 KB Output is correct
13 Correct 5 ms 2736 KB Output is correct
14 Correct 4 ms 2808 KB Output is correct
15 Correct 5 ms 2808 KB Output is correct
16 Correct 5 ms 2812 KB Output is correct
17 Correct 5 ms 2808 KB Output is correct
18 Correct 5 ms 2808 KB Output is correct
19 Correct 5 ms 2808 KB Output is correct
20 Correct 5 ms 2808 KB Output is correct
21 Correct 5 ms 2808 KB Output is correct
22 Correct 5 ms 2808 KB Output is correct
23 Correct 5 ms 2808 KB Output is correct
24 Correct 5 ms 2808 KB Output is correct
25 Correct 5 ms 2808 KB Output is correct
26 Correct 4 ms 2808 KB Output is correct
27 Correct 4 ms 2808 KB Output is correct
28 Correct 5 ms 2808 KB Output is correct
29 Correct 5 ms 2808 KB Output is correct
30 Correct 5 ms 2808 KB Output is correct
31 Correct 5 ms 2808 KB Output is correct
32 Correct 5 ms 2808 KB Output is correct
33 Correct 6 ms 2808 KB Output is correct
34 Correct 5 ms 2780 KB Output is correct
35 Correct 5 ms 2812 KB Output is correct
36 Correct 6 ms 2812 KB Output is correct
37 Correct 5 ms 2808 KB Output is correct
38 Correct 5 ms 2808 KB Output is correct
39 Correct 4 ms 2808 KB Output is correct
40 Correct 5 ms 2808 KB Output is correct
41 Correct 5 ms 2808 KB Output is correct
42 Correct 13 ms 2808 KB Output is correct
43 Correct 6 ms 2808 KB Output is correct
44 Correct 5 ms 2808 KB Output is correct
45 Correct 7 ms 2808 KB Output is correct
46 Correct 13 ms 3064 KB Output is correct
47 Correct 14 ms 3064 KB Output is correct
48 Correct 13 ms 3064 KB Output is correct
49 Correct 9 ms 3320 KB Output is correct
50 Correct 10 ms 3192 KB Output is correct
51 Correct 9 ms 3192 KB Output is correct
52 Correct 10 ms 3192 KB Output is correct
53 Correct 10 ms 3192 KB Output is correct
54 Correct 10 ms 3192 KB Output is correct
55 Correct 10 ms 3192 KB Output is correct
56 Correct 10 ms 3192 KB Output is correct
57 Correct 16 ms 3064 KB Output is correct
58 Correct 17 ms 3064 KB Output is correct
59 Correct 17 ms 3064 KB Output is correct
60 Correct 17 ms 3064 KB Output is correct
61 Correct 11 ms 3192 KB Output is correct
62 Correct 10 ms 3192 KB Output is correct
63 Correct 10 ms 3192 KB Output is correct
64 Correct 12 ms 3064 KB Output is correct
65 Correct 12 ms 3064 KB Output is correct
66 Correct 12 ms 3064 KB Output is correct
67 Correct 12 ms 3036 KB Output is correct
68 Correct 10 ms 3192 KB Output is correct
69 Correct 10 ms 3192 KB Output is correct
70 Correct 9 ms 3196 KB Output is correct
71 Correct 9 ms 3188 KB Output is correct
72 Correct 17 ms 3064 KB Output is correct
73 Correct 17 ms 3064 KB Output is correct
74 Correct 9 ms 3064 KB Output is correct
75 Correct 10 ms 3064 KB Output is correct
76 Correct 10 ms 3064 KB Output is correct
77 Correct 10 ms 3064 KB Output is correct
78 Correct 9 ms 3068 KB Output is correct
79 Correct 9 ms 3128 KB Output is correct
80 Correct 9 ms 3064 KB Output is correct
81 Correct 10 ms 3064 KB Output is correct
82 Correct 10 ms 3064 KB Output is correct
83 Correct 10 ms 3064 KB Output is correct
84 Correct 9 ms 3064 KB Output is correct
85 Correct 9 ms 3064 KB Output is correct
86 Correct 10 ms 3064 KB Output is correct
87 Correct 29 ms 3576 KB Output is correct
88 Correct 94 ms 5240 KB Output is correct
89 Correct 441 ms 11224 KB Output is correct
90 Correct 424 ms 11272 KB Output is correct
91 Correct 443 ms 11452 KB Output is correct
92 Correct 184 ms 15728 KB Output is correct
93 Correct 194 ms 15748 KB Output is correct
94 Correct 180 ms 15728 KB Output is correct
95 Correct 209 ms 14200 KB Output is correct
96 Correct 218 ms 14308 KB Output is correct
97 Correct 222 ms 14164 KB Output is correct
98 Correct 215 ms 14236 KB Output is correct
99 Correct 219 ms 13680 KB Output is correct
100 Correct 735 ms 11332 KB Output is correct
101 Correct 769 ms 11920 KB Output is correct
102 Correct 758 ms 11708 KB Output is correct
103 Correct 752 ms 11748 KB Output is correct
104 Correct 235 ms 13996 KB Output is correct
105 Correct 235 ms 14064 KB Output is correct
106 Correct 252 ms 13932 KB Output is correct
107 Correct 388 ms 11368 KB Output is correct
108 Correct 466 ms 11372 KB Output is correct
109 Correct 432 ms 11576 KB Output is correct
110 Correct 219 ms 15852 KB Output is correct
111 Correct 216 ms 14672 KB Output is correct
112 Correct 208 ms 14208 KB Output is correct
113 Correct 195 ms 13676 KB Output is correct
114 Correct 698 ms 11916 KB Output is correct
115 Correct 703 ms 11320 KB Output is correct
116 Correct 226 ms 13800 KB Output is correct
117 Correct 213 ms 12796 KB Output is correct
118 Correct 202 ms 12372 KB Output is correct
119 Correct 202 ms 12192 KB Output is correct
120 Correct 186 ms 12316 KB Output is correct
121 Correct 212 ms 12116 KB Output is correct
122 Correct 194 ms 11968 KB Output is correct
123 Correct 234 ms 12784 KB Output is correct
124 Correct 259 ms 12600 KB Output is correct
125 Correct 231 ms 12272 KB Output is correct
126 Correct 261 ms 12612 KB Output is correct
127 Correct 236 ms 12184 KB Output is correct
128 Correct 218 ms 11960 KB Output is correct