oj.uz

Submission #334837

# Submission time Handle Problem Language Result Execution time Memory
334837 2020-12-10T05:04:43 Z juggernaut Birthday gift (IZhO18_treearray) C++14
100 / 100
 1319 ms 83268 KB 
#include<bits/stdc++.h>
using namespace std;
int n,m,q,a[200005],up[200005][18],tin[200005],tout[200005],timer;
vector<int>g[200005];
set<int>lc[200005],ar[200005];
set<int>::iterator it;
void dfs(int v,int p){
    tin[v]=++timer;
    up[v][0]=p;
    for(int i=1;i<18;i++)up[v][i]=up[up[v][i-1]][i-1];
    for(int to:g[v])if(to!=p)dfs(to,v);
    tout[v]=++timer;
}
bool upper(int a,int b){
    return tin[a]<=tin[b]&&tout[a]>=tout[b];
}
int lca(int a,int b){
    if(upper(a,b))return a;
    if(upper(b,a))return b;
    for(int i=17;i>=0;i--)
        if(!upper(up[a][i],b))a=up[a][i];
    return up[a][0];
}
int main(){
    scanf("%d%d%d",&n,&m,&q);
    for(int i=1;i<n;i++){
        int x,y;
        scanf("%d%d",&x,&y);
        g[x].push_back(y);
        g[y].push_back(x);
    }
    dfs(1,1);
    for(int i=1;i<=m;i++){
        scanf("%d",&a[i]);
        ar[a[i]].insert(i);
    }
    for(int i=1;i<m;i++)
        lc[lca(a[i],a[i+1])].insert(i);
    while(q--){
        int type;
        scanf("%d",&type);
        if(type&1){
            int pos,val;
            scanf("%d%d",&pos,&val);
            ar[a[pos]].erase(pos);
            if(pos>1)
                lc[lca(a[pos],a[pos-1])].erase(pos-1);
            if(pos<m)
                lc[lca(a[pos],a[pos+1])].erase(pos);
            a[pos]=val;
            if(pos>1)
                lc[lca(a[pos],a[pos-1])].insert(pos-1);
            if(pos<m)
                lc[lca(a[pos],a[pos+1])].insert(pos);
            ar[a[pos]].insert(pos);
        }else{
            int l,r,v,al=-1,arr=-1;
            scanf("%d%d%d",&l,&r,&v);
            //Case al=arr
            it=ar[v].lower_bound(l);
            if(it!=ar[v].end())
                if(*it<=r)al=arr=*it;
            //Case al+1=arr
            it=lc[v].lower_bound(l);
            if(it!=lc[v].end())
                if(*it<r)al=*it,arr=al+1;
            printf("%d %d\n",al,arr);
        }
    }
}

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]
   25 |     scanf("%d%d%d",&n,&m,&q);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~
treearray.cpp:28:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   28 |         scanf("%d%d",&x,&y);
      |         ~~~~~^~~~~~~~~~~~~~
treearray.cpp:34:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   34 |         scanf("%d",&a[i]);
      |         ~~~~~^~~~~~~~~~~~
treearray.cpp:41:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   41 |         scanf("%d",&type);
      |         ~~~~~^~~~~~~~~~~~
treearray.cpp:44:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   44 |             scanf("%d%d",&pos,&val);
      |             ~~~~~^~~~~~~~~~~~~~~~~~
treearray.cpp:58:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   58 |             scanf("%d%d%d",&l,&r,&v);
      |             ~~~~~^~~~~~~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 23788 KB n=5
2 Correct 16 ms 23788 KB n=100
3 Correct 17 ms 23788 KB n=100
4 Correct 16 ms 23788 KB n=100
5 Correct 17 ms 23788 KB n=100
6 Correct 17 ms 23788 KB n=100
7 Correct 17 ms 23788 KB n=100
8 Correct 17 ms 23788 KB n=100
9 Correct 16 ms 23788 KB n=100
10 Correct 17 ms 23788 KB n=100
11 Correct 16 ms 23788 KB n=100
12 Correct 17 ms 23788 KB n=100
13 Correct 16 ms 23900 KB n=100
14 Correct 17 ms 23788 KB n=100
15 Correct 16 ms 23788 KB n=100
16 Correct 16 ms 23788 KB n=100
17 Correct 17 ms 23788 KB n=100
18 Correct 17 ms 23788 KB n=100
19 Correct 16 ms 23788 KB n=100
20 Correct 16 ms 23788 KB n=100
21 Correct 17 ms 23788 KB n=100
22 Correct 17 ms 23788 KB n=100
23 Correct 17 ms 23916 KB n=100
24 Correct 16 ms 23936 KB n=100
25 Correct 16 ms 23788 KB n=100
26 Correct 16 ms 23788 KB n=12
27 Correct 17 ms 23788 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 23788 KB n=5
2 Correct 16 ms 23788 KB n=100
3 Correct 17 ms 23788 KB n=100
4 Correct 16 ms 23788 KB n=100
5 Correct 17 ms 23788 KB n=100
6 Correct 17 ms 23788 KB n=100
7 Correct 17 ms 23788 KB n=100
8 Correct 17 ms 23788 KB n=100
9 Correct 16 ms 23788 KB n=100
10 Correct 17 ms 23788 KB n=100
11 Correct 16 ms 23788 KB n=100
12 Correct 17 ms 23788 KB n=100
13 Correct 16 ms 23900 KB n=100
14 Correct 17 ms 23788 KB n=100
15 Correct 16 ms 23788 KB n=100
16 Correct 16 ms 23788 KB n=100
17 Correct 17 ms 23788 KB n=100
18 Correct 17 ms 23788 KB n=100
19 Correct 16 ms 23788 KB n=100
20 Correct 16 ms 23788 KB n=100
21 Correct 17 ms 23788 KB n=100
22 Correct 17 ms 23788 KB n=100
23 Correct 17 ms 23916 KB n=100
24 Correct 16 ms 23936 KB n=100
25 Correct 16 ms 23788 KB n=100
26 Correct 16 ms 23788 KB n=12
27 Correct 17 ms 23788 KB n=100
28 Correct 17 ms 23916 KB n=500
29 Correct 17 ms 23916 KB n=500
30 Correct 18 ms 23916 KB n=500
31 Correct 17 ms 23916 KB n=500
32 Correct 18 ms 23916 KB n=500
33 Correct 17 ms 23916 KB n=500
34 Correct 18 ms 23916 KB n=500
35 Correct 17 ms 23916 KB n=500
36 Correct 17 ms 23916 KB n=500
37 Correct 17 ms 23916 KB n=500
38 Correct 17 ms 23916 KB n=500
39 Correct 17 ms 23916 KB n=500
40 Correct 17 ms 23916 KB n=500
41 Correct 17 ms 23916 KB n=500
42 Correct 17 ms 23916 KB n=500
43 Correct 17 ms 23916 KB n=500
44 Correct 17 ms 23916 KB n=500
45 Correct 17 ms 23916 KB n=500
46 Correct 17 ms 23916 KB n=500
47 Correct 17 ms 23916 KB n=500
48 Correct 17 ms 23916 KB n=500
49 Correct 17 ms 23916 KB n=500
50 Correct 17 ms 23916 KB n=500
51 Correct 18 ms 23916 KB n=500
52 Correct 18 ms 23916 KB n=500
53 Correct 18 ms 23916 KB n=500
54 Correct 18 ms 23916 KB n=500
55 Correct 17 ms 23916 KB n=278
56 Correct 18 ms 23916 KB n=500
57 Correct 17 ms 23916 KB n=500
58 Correct 17 ms 23916 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 23788 KB n=5
2 Correct 16 ms 23788 KB n=100
3 Correct 17 ms 23788 KB n=100
4 Correct 16 ms 23788 KB n=100
5 Correct 17 ms 23788 KB n=100
6 Correct 17 ms 23788 KB n=100
7 Correct 17 ms 23788 KB n=100
8 Correct 17 ms 23788 KB n=100
9 Correct 16 ms 23788 KB n=100
10 Correct 17 ms 23788 KB n=100
11 Correct 16 ms 23788 KB n=100
12 Correct 17 ms 23788 KB n=100
13 Correct 16 ms 23900 KB n=100
14 Correct 17 ms 23788 KB n=100
15 Correct 16 ms 23788 KB n=100
16 Correct 16 ms 23788 KB n=100
17 Correct 17 ms 23788 KB n=100
18 Correct 17 ms 23788 KB n=100
19 Correct 16 ms 23788 KB n=100
20 Correct 16 ms 23788 KB n=100
21 Correct 17 ms 23788 KB n=100
22 Correct 17 ms 23788 KB n=100
23 Correct 17 ms 23916 KB n=100
24 Correct 16 ms 23936 KB n=100
25 Correct 16 ms 23788 KB n=100
26 Correct 16 ms 23788 KB n=12
27 Correct 17 ms 23788 KB n=100
28 Correct 17 ms 23916 KB n=500
29 Correct 17 ms 23916 KB n=500
30 Correct 18 ms 23916 KB n=500
31 Correct 17 ms 23916 KB n=500
32 Correct 18 ms 23916 KB n=500
33 Correct 17 ms 23916 KB n=500
34 Correct 18 ms 23916 KB n=500
35 Correct 17 ms 23916 KB n=500
36 Correct 17 ms 23916 KB n=500
37 Correct 17 ms 23916 KB n=500
38 Correct 17 ms 23916 KB n=500
39 Correct 17 ms 23916 KB n=500
40 Correct 17 ms 23916 KB n=500
41 Correct 17 ms 23916 KB n=500
42 Correct 17 ms 23916 KB n=500
43 Correct 17 ms 23916 KB n=500
44 Correct 17 ms 23916 KB n=500
45 Correct 17 ms 23916 KB n=500
46 Correct 17 ms 23916 KB n=500
47 Correct 17 ms 23916 KB n=500
48 Correct 17 ms 23916 KB n=500
49 Correct 17 ms 23916 KB n=500
50 Correct 17 ms 23916 KB n=500
51 Correct 18 ms 23916 KB n=500
52 Correct 18 ms 23916 KB n=500
53 Correct 18 ms 23916 KB n=500
54 Correct 18 ms 23916 KB n=500
55 Correct 17 ms 23916 KB n=278
56 Correct 18 ms 23916 KB n=500
57 Correct 17 ms 23916 KB n=500
58 Correct 17 ms 23916 KB n=500
59 Correct 21 ms 24300 KB n=2000
60 Correct 20 ms 24300 KB n=2000
61 Correct 20 ms 24300 KB n=2000
62 Correct 21 ms 24444 KB n=2000
63 Correct 21 ms 24300 KB n=2000
64 Correct 20 ms 24300 KB n=2000
65 Correct 21 ms 24300 KB n=2000
66 Correct 20 ms 24256 KB n=2000
67 Correct 21 ms 24300 KB n=2000
68 Correct 20 ms 24300 KB n=2000
69 Correct 19 ms 24300 KB n=2000
70 Correct 19 ms 24300 KB n=2000
71 Correct 20 ms 24300 KB n=2000
72 Correct 21 ms 24300 KB n=2000
73 Correct 19 ms 24300 KB n=2000
74 Correct 20 ms 24300 KB n=1844
75 Correct 23 ms 24300 KB n=2000
76 Correct 21 ms 24300 KB n=2000
77 Correct 21 ms 24300 KB n=2000
78 Correct 21 ms 24300 KB n=2000
79 Correct 20 ms 24300 KB n=2000
80 Correct 19 ms 24300 KB n=2000
81 Correct 20 ms 24300 KB n=2000
82 Correct 20 ms 24300 KB n=2000
83 Correct 20 ms 24300 KB n=2000
84 Correct 21 ms 24300 KB n=2000
85 Correct 22 ms 24300 KB n=2000
86 Correct 21 ms 24300 KB n=2000
87 Correct 21 ms 24300 KB n=2000
88 Correct 19 ms 24300 KB n=2000
89 Correct 20 ms 24444 KB n=2000
90 Correct 21 ms 24300 KB n=2000
91 Correct 19 ms 24300 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 23788 KB n=5
2 Correct 16 ms 23788 KB n=100
3 Correct 17 ms 23788 KB n=100
4 Correct 16 ms 23788 KB n=100
5 Correct 17 ms 23788 KB n=100
6 Correct 17 ms 23788 KB n=100
7 Correct 17 ms 23788 KB n=100
8 Correct 17 ms 23788 KB n=100
9 Correct 16 ms 23788 KB n=100
10 Correct 17 ms 23788 KB n=100
11 Correct 16 ms 23788 KB n=100
12 Correct 17 ms 23788 KB n=100
13 Correct 16 ms 23900 KB n=100
14 Correct 17 ms 23788 KB n=100
15 Correct 16 ms 23788 KB n=100
16 Correct 16 ms 23788 KB n=100
17 Correct 17 ms 23788 KB n=100
18 Correct 17 ms 23788 KB n=100
19 Correct 16 ms 23788 KB n=100
20 Correct 16 ms 23788 KB n=100
21 Correct 17 ms 23788 KB n=100
22 Correct 17 ms 23788 KB n=100
23 Correct 17 ms 23916 KB n=100
24 Correct 16 ms 23936 KB n=100
25 Correct 16 ms 23788 KB n=100
26 Correct 16 ms 23788 KB n=12
27 Correct 17 ms 23788 KB n=100
28 Correct 17 ms 23916 KB n=500
29 Correct 17 ms 23916 KB n=500
30 Correct 18 ms 23916 KB n=500
31 Correct 17 ms 23916 KB n=500
32 Correct 18 ms 23916 KB n=500
33 Correct 17 ms 23916 KB n=500
34 Correct 18 ms 23916 KB n=500
35 Correct 17 ms 23916 KB n=500
36 Correct 17 ms 23916 KB n=500
37 Correct 17 ms 23916 KB n=500
38 Correct 17 ms 23916 KB n=500
39 Correct 17 ms 23916 KB n=500
40 Correct 17 ms 23916 KB n=500
41 Correct 17 ms 23916 KB n=500
42 Correct 17 ms 23916 KB n=500
43 Correct 17 ms 23916 KB n=500
44 Correct 17 ms 23916 KB n=500
45 Correct 17 ms 23916 KB n=500
46 Correct 17 ms 23916 KB n=500
47 Correct 17 ms 23916 KB n=500
48 Correct 17 ms 23916 KB n=500
49 Correct 17 ms 23916 KB n=500
50 Correct 17 ms 23916 KB n=500
51 Correct 18 ms 23916 KB n=500
52 Correct 18 ms 23916 KB n=500
53 Correct 18 ms 23916 KB n=500
54 Correct 18 ms 23916 KB n=500
55 Correct 17 ms 23916 KB n=278
56 Correct 18 ms 23916 KB n=500
57 Correct 17 ms 23916 KB n=500
58 Correct 17 ms 23916 KB n=500
59 Correct 21 ms 24300 KB n=2000
60 Correct 20 ms 24300 KB n=2000
61 Correct 20 ms 24300 KB n=2000
62 Correct 21 ms 24444 KB n=2000
63 Correct 21 ms 24300 KB n=2000
64 Correct 20 ms 24300 KB n=2000
65 Correct 21 ms 24300 KB n=2000
66 Correct 20 ms 24256 KB n=2000
67 Correct 21 ms 24300 KB n=2000
68 Correct 20 ms 24300 KB n=2000
69 Correct 19 ms 24300 KB n=2000
70 Correct 19 ms 24300 KB n=2000
71 Correct 20 ms 24300 KB n=2000
72 Correct 21 ms 24300 KB n=2000
73 Correct 19 ms 24300 KB n=2000
74 Correct 20 ms 24300 KB n=1844
75 Correct 23 ms 24300 KB n=2000
76 Correct 21 ms 24300 KB n=2000
77 Correct 21 ms 24300 KB n=2000
78 Correct 21 ms 24300 KB n=2000
79 Correct 20 ms 24300 KB n=2000
80 Correct 19 ms 24300 KB n=2000
81 Correct 20 ms 24300 KB n=2000
82 Correct 20 ms 24300 KB n=2000
83 Correct 20 ms 24300 KB n=2000
84 Correct 21 ms 24300 KB n=2000
85 Correct 22 ms 24300 KB n=2000
86 Correct 21 ms 24300 KB n=2000
87 Correct 21 ms 24300 KB n=2000
88 Correct 19 ms 24300 KB n=2000
89 Correct 20 ms 24444 KB n=2000
90 Correct 21 ms 24300 KB n=2000
91 Correct 19 ms 24300 KB n=2000
92 Correct 889 ms 73688 KB n=200000
93 Correct 984 ms 78740 KB n=200000
94 Correct 744 ms 82156 KB n=200000
95 Correct 871 ms 73768 KB n=200000
96 Correct 875 ms 73720 KB n=200000
97 Correct 1082 ms 77848 KB n=200000
98 Correct 870 ms 73628 KB n=200000
99 Correct 1043 ms 73888 KB n=200000
100 Correct 878 ms 73828 KB n=200000
101 Correct 684 ms 83268 KB n=200000
102 Correct 540 ms 74860 KB n=200000
103 Correct 547 ms 74988 KB n=200000
104 Correct 546 ms 74836 KB n=200000
105 Correct 547 ms 75256 KB n=200000
106 Correct 557 ms 75244 KB n=200000
107 Correct 547 ms 75408 KB n=200000
108 Correct 955 ms 73708 KB n=200000
109 Correct 943 ms 73756 KB n=200000
110 Correct 945 ms 73836 KB n=200000
111 Correct 934 ms 73152 KB n=200000
112 Correct 728 ms 82348 KB n=200000
113 Correct 1054 ms 77816 KB n=200000
114 Correct 964 ms 73192 KB n=200000
115 Correct 1319 ms 75736 KB n=200000
116 Correct 821 ms 73868 KB n=200000
117 Correct 687 ms 82704 KB n=200000
118 Correct 1150 ms 76612 KB n=200000
119 Correct 844 ms 73824 KB n=200000
120 Correct 621 ms 82216 KB n=200000
121 Correct 636 ms 82188 KB n=200000
122 Correct 660 ms 82612 KB n=200000
123 Correct 560 ms 75116 KB n=200000
124 Correct 228 ms 38636 KB n=25264