답안 #74508 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
74508	2018-09-02T16:23:00 Z	win11905	Birthday gift (IZhO18_treearray)	C++11	100 / 100	1665 ms	137348 KB

treearray

#include <bits/stdc++.h>
using namespace std;

const int N = 2e5+5;

int n, m, q, A[N];
int par[N][18], dep[N];
vector<int> g[N];
set<int> pos[N], lca_pos[N];

void init_lca(int u, int p) {
    for(int i = 1; i < 18; ++i) par[u][i] = par[par[u][i-1]][i-1];
    for(int v : g[u]) if(v != p) par[v][0] = u, dep[v] = dep[u] + 1, init_lca(v, u);
}

int get_lca(int u, int v) {
    if(dep[u] < dep[v]) swap(u, v);
    for(int i = 17; ~i; --i) if(dep[par[u][i]] >= dep[v]) u = par[u][i];
    if(u == v) return u;
    for(int i = 17; ~i; --i) if(par[u][i] != par[v][i]) u = par[u][i], v = par[v][i];
    return par[u][0];
}

int main() {
    scanf("%d %d %d", &n, &m, &q);
    for(int i = 1, u, v; i < n; ++i) {
        scanf("%d %d", &u, &v);
        g[u].emplace_back(v), g[v].emplace_back(u);
    }
    for(int i = 1; i <= n; ++i) pos[i].emplace(m+1), lca_pos[i].emplace(m+1);
    init_lca(1, 0);
    for(int i = 1; i <= m; ++i) scanf("%d", A+i), pos[A[i]].emplace(i);
    for(int i = 1; i < m; ++i) lca_pos[get_lca(A[i], A[i+1])].emplace(i);
    for(int i = 0, tp, l, r, v; i < q; ++i) {
        scanf("%d", &tp);
        if(tp == 1) {
            scanf("%d %d", &tp, &v);
            pos[A[tp]].erase(tp);
            if(tp != 1) lca_pos[get_lca(A[tp], A[tp-1])].erase(tp-1);
            if(tp != m) lca_pos[get_lca(A[tp], A[tp+1])].erase(tp); 
            A[tp] = v;
            pos[A[tp]].emplace(tp);
            if(tp != 1) lca_pos[get_lca(A[tp], A[tp-1])].emplace(tp-1);
            if(tp != m) lca_pos[get_lca(A[tp], A[tp+1])].emplace(tp);
        } else {
            scanf("%d %d %d", &l, &r, &v);
            int a1 = *pos[v].lower_bound(l), a2 = *lca_pos[v].lower_bound(l);
            if(a1 <= r) printf("%d %d\n", a1, a1);
            else if(a2 < r) printf("%d %d\n", a2, a2+1);
            else puts("-1 -1");
        }
    } 
}

Compilation message

treearray.cpp: In function 'int main()':
treearray.cpp:25:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d %d", &n, &m, &q);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
treearray.cpp:27:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d", &u, &v);
         ~~~~~^~~~~~~~~~~~~~~~~
treearray.cpp:32:49: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(int i = 1; i <= m; ++i) scanf("%d", A+i), pos[A[i]].emplace(i);
                                 ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
treearray.cpp:35:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &tp);
         ~~~~~^~~~~~~~~~~
treearray.cpp:37:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d %d", &tp, &v);
             ~~~~~^~~~~~~~~~~~~~~~~~
treearray.cpp:46:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d %d %d", &l, &r, &v);
             ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	22 ms	23800 KB	n=5
2	Correct	21 ms	23988 KB	n=100
3	Correct	22 ms	24064 KB	n=100
4	Correct	23 ms	24120 KB	n=100
5	Correct	22 ms	24120 KB	n=100
6	Correct	21 ms	24120 KB	n=100
7	Correct	23 ms	24120 KB	n=100
8	Correct	22 ms	24120 KB	n=100
9	Correct	22 ms	24120 KB	n=100
10	Correct	22 ms	24120 KB	n=100
11	Correct	25 ms	24120 KB	n=100
12	Correct	22 ms	24120 KB	n=100
13	Correct	21 ms	24120 KB	n=100
14	Correct	23 ms	24120 KB	n=100
15	Correct	21 ms	24120 KB	n=100
16	Correct	22 ms	24172 KB	n=100
17	Correct	21 ms	24208 KB	n=100
18	Correct	23 ms	24208 KB	n=100
19	Correct	23 ms	24208 KB	n=100
20	Correct	24 ms	24208 KB	n=100
21	Correct	23 ms	24208 KB	n=100
22	Correct	23 ms	24208 KB	n=100
23	Correct	22 ms	24208 KB	n=100
24	Correct	22 ms	24208 KB	n=100
25	Correct	24 ms	24208 KB	n=100
26	Correct	23 ms	24208 KB	n=12
27	Correct	22 ms	24208 KB	n=100

Subtask #2
18.0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	22 ms	23800 KB	n=5
2	Correct	21 ms	23988 KB	n=100
3	Correct	22 ms	24064 KB	n=100
4	Correct	23 ms	24120 KB	n=100
5	Correct	22 ms	24120 KB	n=100
6	Correct	21 ms	24120 KB	n=100
7	Correct	23 ms	24120 KB	n=100
8	Correct	22 ms	24120 KB	n=100
9	Correct	22 ms	24120 KB	n=100
10	Correct	22 ms	24120 KB	n=100
11	Correct	25 ms	24120 KB	n=100
12	Correct	22 ms	24120 KB	n=100
13	Correct	21 ms	24120 KB	n=100
14	Correct	23 ms	24120 KB	n=100
15	Correct	21 ms	24120 KB	n=100
16	Correct	22 ms	24172 KB	n=100
17	Correct	21 ms	24208 KB	n=100
18	Correct	23 ms	24208 KB	n=100
19	Correct	23 ms	24208 KB	n=100
20	Correct	24 ms	24208 KB	n=100
21	Correct	23 ms	24208 KB	n=100
22	Correct	23 ms	24208 KB	n=100
23	Correct	22 ms	24208 KB	n=100
24	Correct	22 ms	24208 KB	n=100
25	Correct	24 ms	24208 KB	n=100
26	Correct	23 ms	24208 KB	n=12
27	Correct	22 ms	24208 KB	n=100
28	Correct	30 ms	24208 KB	n=500
29	Correct	23 ms	24208 KB	n=500
30	Correct	23 ms	24208 KB	n=500
31	Correct	23 ms	24208 KB	n=500
32	Correct	24 ms	24208 KB	n=500
33	Correct	23 ms	24208 KB	n=500
34	Correct	24 ms	24208 KB	n=500
35	Correct	23 ms	24208 KB	n=500
36	Correct	23 ms	24208 KB	n=500
37	Correct	25 ms	24208 KB	n=500
38	Correct	27 ms	24208 KB	n=500
39	Correct	23 ms	24208 KB	n=500
40	Correct	22 ms	24208 KB	n=500
41	Correct	22 ms	24212 KB	n=500
42	Correct	22 ms	24212 KB	n=500
43	Correct	25 ms	24212 KB	n=500
44	Correct	23 ms	24212 KB	n=500
45	Correct	24 ms	24212 KB	n=500
46	Correct	28 ms	24212 KB	n=500
47	Correct	23 ms	24212 KB	n=500
48	Correct	23 ms	24212 KB	n=500
49	Correct	22 ms	24212 KB	n=500
50	Correct	25 ms	24212 KB	n=500
51	Correct	22 ms	24212 KB	n=500
52	Correct	22 ms	24212 KB	n=500
53	Correct	24 ms	24212 KB	n=500
54	Correct	23 ms	24212 KB	n=500
55	Correct	22 ms	24212 KB	n=278
56	Correct	26 ms	24212 KB	n=500
57	Correct	23 ms	24212 KB	n=500
58	Correct	22 ms	24212 KB	n=500

Subtask #3
26.0 / 26.0

#	결과	실행 시간	메모리	Grader output
1	Correct	22 ms	23800 KB	n=5
2	Correct	21 ms	23988 KB	n=100
3	Correct	22 ms	24064 KB	n=100
4	Correct	23 ms	24120 KB	n=100
5	Correct	22 ms	24120 KB	n=100
6	Correct	21 ms	24120 KB	n=100
7	Correct	23 ms	24120 KB	n=100
8	Correct	22 ms	24120 KB	n=100
9	Correct	22 ms	24120 KB	n=100
10	Correct	22 ms	24120 KB	n=100
11	Correct	25 ms	24120 KB	n=100
12	Correct	22 ms	24120 KB	n=100
13	Correct	21 ms	24120 KB	n=100
14	Correct	23 ms	24120 KB	n=100
15	Correct	21 ms	24120 KB	n=100
16	Correct	22 ms	24172 KB	n=100
17	Correct	21 ms	24208 KB	n=100
18	Correct	23 ms	24208 KB	n=100
19	Correct	23 ms	24208 KB	n=100
20	Correct	24 ms	24208 KB	n=100
21	Correct	23 ms	24208 KB	n=100
22	Correct	23 ms	24208 KB	n=100
23	Correct	22 ms	24208 KB	n=100
24	Correct	22 ms	24208 KB	n=100
25	Correct	24 ms	24208 KB	n=100
26	Correct	23 ms	24208 KB	n=12
27	Correct	22 ms	24208 KB	n=100
28	Correct	30 ms	24208 KB	n=500
29	Correct	23 ms	24208 KB	n=500
30	Correct	23 ms	24208 KB	n=500
31	Correct	23 ms	24208 KB	n=500
32	Correct	24 ms	24208 KB	n=500
33	Correct	23 ms	24208 KB	n=500
34	Correct	24 ms	24208 KB	n=500
35	Correct	23 ms	24208 KB	n=500
36	Correct	23 ms	24208 KB	n=500
37	Correct	25 ms	24208 KB	n=500
38	Correct	27 ms	24208 KB	n=500
39	Correct	23 ms	24208 KB	n=500
40	Correct	22 ms	24208 KB	n=500
41	Correct	22 ms	24212 KB	n=500
42	Correct	22 ms	24212 KB	n=500
43	Correct	25 ms	24212 KB	n=500
44	Correct	23 ms	24212 KB	n=500
45	Correct	24 ms	24212 KB	n=500
46	Correct	28 ms	24212 KB	n=500
47	Correct	23 ms	24212 KB	n=500
48	Correct	23 ms	24212 KB	n=500
49	Correct	22 ms	24212 KB	n=500
50	Correct	25 ms	24212 KB	n=500
51	Correct	22 ms	24212 KB	n=500
52	Correct	22 ms	24212 KB	n=500
53	Correct	24 ms	24212 KB	n=500
54	Correct	23 ms	24212 KB	n=500
55	Correct	22 ms	24212 KB	n=278
56	Correct	26 ms	24212 KB	n=500
57	Correct	23 ms	24212 KB	n=500
58	Correct	22 ms	24212 KB	n=500
59	Correct	26 ms	24684 KB	n=2000
60	Correct	28 ms	24812 KB	n=2000
61	Correct	29 ms	24812 KB	n=2000
62	Correct	28 ms	24812 KB	n=2000
63	Correct	27 ms	24812 KB	n=2000
64	Correct	26 ms	24812 KB	n=2000
65	Correct	28 ms	24812 KB	n=2000
66	Correct	27 ms	24812 KB	n=2000
67	Correct	28 ms	24812 KB	n=2000
68	Correct	34 ms	24812 KB	n=2000
69	Correct	25 ms	24812 KB	n=2000
70	Correct	25 ms	24812 KB	n=2000
71	Correct	26 ms	24876 KB	n=2000
72	Correct	25 ms	24876 KB	n=2000
73	Correct	26 ms	24876 KB	n=2000
74	Correct	27 ms	24876 KB	n=1844
75	Correct	25 ms	24876 KB	n=2000
76	Correct	29 ms	24876 KB	n=2000
77	Correct	29 ms	24876 KB	n=2000
78	Correct	27 ms	24876 KB	n=2000
79	Correct	27 ms	24876 KB	n=2000
80	Correct	27 ms	24876 KB	n=2000
81	Correct	27 ms	24876 KB	n=2000
82	Correct	27 ms	24876 KB	n=2000
83	Correct	32 ms	24876 KB	n=2000
84	Correct	27 ms	24876 KB	n=2000
85	Correct	29 ms	24876 KB	n=2000
86	Correct	28 ms	24876 KB	n=2000
87	Correct	27 ms	24876 KB	n=2000
88	Correct	27 ms	24876 KB	n=2000
89	Correct	29 ms	24892 KB	n=2000
90	Correct	28 ms	24892 KB	n=2000
91	Correct	25 ms	24892 KB	n=2000

Subtask #4
44.0 / 44.0

#	결과	실행 시간	메모리	Grader output
1	Correct	22 ms	23800 KB	n=5
2	Correct	21 ms	23988 KB	n=100
3	Correct	22 ms	24064 KB	n=100
4	Correct	23 ms	24120 KB	n=100
5	Correct	22 ms	24120 KB	n=100
6	Correct	21 ms	24120 KB	n=100
7	Correct	23 ms	24120 KB	n=100
8	Correct	22 ms	24120 KB	n=100
9	Correct	22 ms	24120 KB	n=100
10	Correct	22 ms	24120 KB	n=100
11	Correct	25 ms	24120 KB	n=100
12	Correct	22 ms	24120 KB	n=100
13	Correct	21 ms	24120 KB	n=100
14	Correct	23 ms	24120 KB	n=100
15	Correct	21 ms	24120 KB	n=100
16	Correct	22 ms	24172 KB	n=100
17	Correct	21 ms	24208 KB	n=100
18	Correct	23 ms	24208 KB	n=100
19	Correct	23 ms	24208 KB	n=100
20	Correct	24 ms	24208 KB	n=100
21	Correct	23 ms	24208 KB	n=100
22	Correct	23 ms	24208 KB	n=100
23	Correct	22 ms	24208 KB	n=100
24	Correct	22 ms	24208 KB	n=100
25	Correct	24 ms	24208 KB	n=100
26	Correct	23 ms	24208 KB	n=12
27	Correct	22 ms	24208 KB	n=100
28	Correct	30 ms	24208 KB	n=500
29	Correct	23 ms	24208 KB	n=500
30	Correct	23 ms	24208 KB	n=500
31	Correct	23 ms	24208 KB	n=500
32	Correct	24 ms	24208 KB	n=500
33	Correct	23 ms	24208 KB	n=500
34	Correct	24 ms	24208 KB	n=500
35	Correct	23 ms	24208 KB	n=500
36	Correct	23 ms	24208 KB	n=500
37	Correct	25 ms	24208 KB	n=500
38	Correct	27 ms	24208 KB	n=500
39	Correct	23 ms	24208 KB	n=500
40	Correct	22 ms	24208 KB	n=500
41	Correct	22 ms	24212 KB	n=500
42	Correct	22 ms	24212 KB	n=500
43	Correct	25 ms	24212 KB	n=500
44	Correct	23 ms	24212 KB	n=500
45	Correct	24 ms	24212 KB	n=500
46	Correct	28 ms	24212 KB	n=500
47	Correct	23 ms	24212 KB	n=500
48	Correct	23 ms	24212 KB	n=500
49	Correct	22 ms	24212 KB	n=500
50	Correct	25 ms	24212 KB	n=500
51	Correct	22 ms	24212 KB	n=500
52	Correct	22 ms	24212 KB	n=500
53	Correct	24 ms	24212 KB	n=500
54	Correct	23 ms	24212 KB	n=500
55	Correct	22 ms	24212 KB	n=278
56	Correct	26 ms	24212 KB	n=500
57	Correct	23 ms	24212 KB	n=500
58	Correct	22 ms	24212 KB	n=500
59	Correct	26 ms	24684 KB	n=2000
60	Correct	28 ms	24812 KB	n=2000
61	Correct	29 ms	24812 KB	n=2000
62	Correct	28 ms	24812 KB	n=2000
63	Correct	27 ms	24812 KB	n=2000
64	Correct	26 ms	24812 KB	n=2000
65	Correct	28 ms	24812 KB	n=2000
66	Correct	27 ms	24812 KB	n=2000
67	Correct	28 ms	24812 KB	n=2000
68	Correct	34 ms	24812 KB	n=2000
69	Correct	25 ms	24812 KB	n=2000
70	Correct	25 ms	24812 KB	n=2000
71	Correct	26 ms	24876 KB	n=2000
72	Correct	25 ms	24876 KB	n=2000
73	Correct	26 ms	24876 KB	n=2000
74	Correct	27 ms	24876 KB	n=1844
75	Correct	25 ms	24876 KB	n=2000
76	Correct	29 ms	24876 KB	n=2000
77	Correct	29 ms	24876 KB	n=2000
78	Correct	27 ms	24876 KB	n=2000
79	Correct	27 ms	24876 KB	n=2000
80	Correct	27 ms	24876 KB	n=2000
81	Correct	27 ms	24876 KB	n=2000
82	Correct	27 ms	24876 KB	n=2000
83	Correct	32 ms	24876 KB	n=2000
84	Correct	27 ms	24876 KB	n=2000
85	Correct	29 ms	24876 KB	n=2000
86	Correct	28 ms	24876 KB	n=2000
87	Correct	27 ms	24876 KB	n=2000
88	Correct	27 ms	24876 KB	n=2000
89	Correct	29 ms	24892 KB	n=2000
90	Correct	28 ms	24892 KB	n=2000
91	Correct	25 ms	24892 KB	n=2000
92	Correct	1065 ms	85656 KB	n=200000
93	Correct	1566 ms	89492 KB	n=200000
94	Correct	1568 ms	92764 KB	n=200000
95	Correct	1056 ms	92764 KB	n=200000
96	Correct	1073 ms	92764 KB	n=200000
97	Correct	1625 ms	92764 KB	n=200000
98	Correct	1104 ms	92764 KB	n=200000
99	Correct	1358 ms	92764 KB	n=200000
100	Correct	1140 ms	92764 KB	n=200000
101	Correct	1580 ms	94124 KB	n=200000
102	Correct	658 ms	94124 KB	n=200000
103	Correct	630 ms	94124 KB	n=200000
104	Correct	651 ms	94124 KB	n=200000
105	Correct	675 ms	94124 KB	n=200000
106	Correct	737 ms	94124 KB	n=200000
107	Correct	647 ms	94124 KB	n=200000
108	Correct	1139 ms	94124 KB	n=200000
109	Correct	1150 ms	94124 KB	n=200000
110	Correct	1263 ms	94124 KB	n=200000
111	Correct	1101 ms	94124 KB	n=200000
112	Correct	1553 ms	94124 KB	n=200000
113	Correct	1627 ms	94124 KB	n=200000
114	Correct	1128 ms	94124 KB	n=200000
115	Correct	1534 ms	94124 KB	n=200000
116	Correct	1114 ms	94124 KB	n=200000
117	Correct	1665 ms	101192 KB	n=200000
118	Correct	1547 ms	102832 KB	n=200000
119	Correct	1031 ms	107516 KB	n=200000
120	Correct	1449 ms	122956 KB	n=200000
121	Correct	1472 ms	130108 KB	n=200000
122	Correct	1427 ms	137348 KB	n=200000
123	Correct	642 ms	137348 KB	n=200000
124	Correct	336 ms	137348 KB	n=25264

답안 #74508

Compilation message

Subtask #1 12.0 / 12.0

Subtask #2 18.0 / 18.0

Subtask #3 26.0 / 26.0

Subtask #4 44.0 / 44.0

Subtask #1
12.0 / 12.0

Subtask #2
18.0 / 18.0

Subtask #3
26.0 / 26.0

Subtask #4
44.0 / 44.0