oj.uz

Submission #672478

# Submission time Handle Problem Language Result Execution time Memory
672478 2022-12-16T10:23:26 Z Cutebol Birthday gift (IZhO18_treearray) C++17
100 / 100
 1118 ms 102284 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
void fopn(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
#define Scaramouche ios_base::sync_with_stdio(0) ; cin.tie(0) ; cout.tie(0);
#define int long long
#define itn int
#define endl "\n"
#define ff first
#define ss second
   
const int N = 2e5 + 5 ;
const int mod = 1e9 + 7 ;
const int inf = 1e12 ;

int n , m , q , l = 1 , timer ;
int tin[N] , tout[N] , a[N] ;
vector <int> g[N] , up[N] ;
set <int> par[N] , st[N] ;

void dfs( int v , int p = 1 ){
	tin[v] = ++timer ;
	up[v][0] = p ;
	for ( int i = 1 ; i <= l ; i ++ ) up[v][i] = up[up[v][i-1]][i-1] ;
	for ( auto 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 = l ; i >= 0 ; i -- )
		if ( !upper(up[a][i] , b) ) a = up[a][i] ;
	return up[a][0] ;
}

void solve(){
	
	cin >> n >> m >> q ;
	while ( ( 1 << l ) <= n ) l ++ ;
	for ( int i = 0 ; i <= n ; i ++ ) up[i].resize(l+1) ;
	for ( int i = 1 ; i < n ; i ++ ){
		int x , y ;
		cin >> x >> y ;
		g[x].push_back(y) ;
		g[y].push_back(x) ;
	}
	for ( int i = 1 ; i <= m ; i ++ ){ cin >> a[i] ; st[a[i]].insert(i) ;}
	dfs(1) ;
	for ( int i = 2 ; i <= m ; i ++ )
		par[lca(a[i],a[i-1])].insert(i-1) ;
	
	while ( q -- ){
		int tt ;
		cin >> tt ;
		if ( tt == 1 ){
			int ind , val ;
			cin >> ind >> val ;
			st[a[ind]].erase(ind) ;
			st[val].insert(ind) ;
			if ( ind > 1 ){
				par[lca(a[ind],a[ind-1])].erase(ind-1) ;
				par[lca(val,a[ind-1])].insert(ind-1) ;
			}
			if ( ind < m ){
				par[lca(a[ind],a[ind+1])].erase(ind) ;
				par[lca(val,a[ind+1])].insert(ind) ;
			}
			a[ind] = val ;
		}
		else{
			int l , r , v ;
			cin >> l >> r >> v ;
			auto f = st[v].lower_bound(l) ;
			if ( f != st[v].end() && *f <= r ){
				cout << *f << ' ' << *f << endl ;
				continue ;
			}
			f = par[v].lower_bound(l) ;
			if ( f != par[v].end() && *f < r )
				cout << *f << ' ' << *f+1 << endl ;
			else cout << "-1 -1\n" ;
		}
	}
}
 
signed main(){
//  fopn("blocks") ;
    Scaramouche ;
    int t = 1 ;
//      cin >> t ;
    while ( t -- ) solve() ; 
}

Compilation message

treearray.cpp: In function 'void fopn(std::string)':
treearray.cpp:5:31: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    5 | void fopn(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
      |                        ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
treearray.cpp:5:72: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    5 | void fopn(string name){freopen((name+".in").c_str(),"r",stdin); freopen((name+".out").c_str(),"w",stdout);}
      |                                                                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 28500 KB n=5
2 Correct 14 ms 28500 KB n=100
3 Correct 13 ms 28460 KB n=100
4 Correct 14 ms 28452 KB n=100
5 Correct 14 ms 28500 KB n=100
6 Correct 14 ms 28536 KB n=100
7 Correct 13 ms 28464 KB n=100
8 Correct 13 ms 28512 KB n=100
9 Correct 17 ms 28500 KB n=100
10 Correct 14 ms 28480 KB n=100
11 Correct 14 ms 28500 KB n=100
12 Correct 14 ms 28448 KB n=100
13 Correct 14 ms 28500 KB n=100
14 Correct 14 ms 28520 KB n=100
15 Correct 14 ms 28500 KB n=100
16 Correct 15 ms 28428 KB n=100
17 Correct 13 ms 28536 KB n=100
18 Correct 16 ms 28500 KB n=100
19 Correct 13 ms 28424 KB n=100
20 Correct 13 ms 28476 KB n=100
21 Correct 14 ms 28500 KB n=100
22 Correct 14 ms 28524 KB n=100
23 Correct 14 ms 28436 KB n=100
24 Correct 14 ms 28448 KB n=100
25 Correct 15 ms 28432 KB n=100
26 Correct 14 ms 28456 KB n=12
27 Correct 14 ms 28500 KB n=100

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 28500 KB n=5
2 Correct 14 ms 28500 KB n=100
3 Correct 13 ms 28460 KB n=100
4 Correct 14 ms 28452 KB n=100
5 Correct 14 ms 28500 KB n=100
6 Correct 14 ms 28536 KB n=100
7 Correct 13 ms 28464 KB n=100
8 Correct 13 ms 28512 KB n=100
9 Correct 17 ms 28500 KB n=100
10 Correct 14 ms 28480 KB n=100
11 Correct 14 ms 28500 KB n=100
12 Correct 14 ms 28448 KB n=100
13 Correct 14 ms 28500 KB n=100
14 Correct 14 ms 28520 KB n=100
15 Correct 14 ms 28500 KB n=100
16 Correct 15 ms 28428 KB n=100
17 Correct 13 ms 28536 KB n=100
18 Correct 16 ms 28500 KB n=100
19 Correct 13 ms 28424 KB n=100
20 Correct 13 ms 28476 KB n=100
21 Correct 14 ms 28500 KB n=100
22 Correct 14 ms 28524 KB n=100
23 Correct 14 ms 28436 KB n=100
24 Correct 14 ms 28448 KB n=100
25 Correct 15 ms 28432 KB n=100
26 Correct 14 ms 28456 KB n=12
27 Correct 14 ms 28500 KB n=100
28 Correct 15 ms 28684 KB n=500
29 Correct 15 ms 28632 KB n=500
30 Correct 15 ms 28628 KB n=500
31 Correct 14 ms 28644 KB n=500
32 Correct 14 ms 28628 KB n=500
33 Correct 15 ms 28596 KB n=500
34 Correct 14 ms 28620 KB n=500
35 Correct 14 ms 28628 KB n=500
36 Correct 13 ms 28652 KB n=500
37 Correct 15 ms 28648 KB n=500
38 Correct 16 ms 28588 KB n=500
39 Correct 14 ms 28628 KB n=500
40 Correct 14 ms 28628 KB n=500
41 Correct 14 ms 28628 KB n=500
42 Correct 14 ms 28568 KB n=500
43 Correct 14 ms 28628 KB n=500
44 Correct 15 ms 28576 KB n=500
45 Correct 17 ms 28628 KB n=500
46 Correct 15 ms 28628 KB n=500
47 Correct 15 ms 28628 KB n=500
48 Correct 15 ms 28636 KB n=500
49 Correct 15 ms 28772 KB n=500
50 Correct 15 ms 28656 KB n=500
51 Correct 14 ms 28540 KB n=500
52 Correct 15 ms 28660 KB n=500
53 Correct 16 ms 28600 KB n=500
54 Correct 14 ms 28628 KB n=500
55 Correct 15 ms 28508 KB n=278
56 Correct 15 ms 28628 KB n=500
57 Correct 16 ms 28616 KB n=500
58 Correct 15 ms 28584 KB n=500

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 28500 KB n=5
2 Correct 14 ms 28500 KB n=100
3 Correct 13 ms 28460 KB n=100
4 Correct 14 ms 28452 KB n=100
5 Correct 14 ms 28500 KB n=100
6 Correct 14 ms 28536 KB n=100
7 Correct 13 ms 28464 KB n=100
8 Correct 13 ms 28512 KB n=100
9 Correct 17 ms 28500 KB n=100
10 Correct 14 ms 28480 KB n=100
11 Correct 14 ms 28500 KB n=100
12 Correct 14 ms 28448 KB n=100
13 Correct 14 ms 28500 KB n=100
14 Correct 14 ms 28520 KB n=100
15 Correct 14 ms 28500 KB n=100
16 Correct 15 ms 28428 KB n=100
17 Correct 13 ms 28536 KB n=100
18 Correct 16 ms 28500 KB n=100
19 Correct 13 ms 28424 KB n=100
20 Correct 13 ms 28476 KB n=100
21 Correct 14 ms 28500 KB n=100
22 Correct 14 ms 28524 KB n=100
23 Correct 14 ms 28436 KB n=100
24 Correct 14 ms 28448 KB n=100
25 Correct 15 ms 28432 KB n=100
26 Correct 14 ms 28456 KB n=12
27 Correct 14 ms 28500 KB n=100
28 Correct 15 ms 28684 KB n=500
29 Correct 15 ms 28632 KB n=500
30 Correct 15 ms 28628 KB n=500
31 Correct 14 ms 28644 KB n=500
32 Correct 14 ms 28628 KB n=500
33 Correct 15 ms 28596 KB n=500
34 Correct 14 ms 28620 KB n=500
35 Correct 14 ms 28628 KB n=500
36 Correct 13 ms 28652 KB n=500
37 Correct 15 ms 28648 KB n=500
38 Correct 16 ms 28588 KB n=500
39 Correct 14 ms 28628 KB n=500
40 Correct 14 ms 28628 KB n=500
41 Correct 14 ms 28628 KB n=500
42 Correct 14 ms 28568 KB n=500
43 Correct 14 ms 28628 KB n=500
44 Correct 15 ms 28576 KB n=500
45 Correct 17 ms 28628 KB n=500
46 Correct 15 ms 28628 KB n=500
47 Correct 15 ms 28628 KB n=500
48 Correct 15 ms 28636 KB n=500
49 Correct 15 ms 28772 KB n=500
50 Correct 15 ms 28656 KB n=500
51 Correct 14 ms 28540 KB n=500
52 Correct 15 ms 28660 KB n=500
53 Correct 16 ms 28600 KB n=500
54 Correct 14 ms 28628 KB n=500
55 Correct 15 ms 28508 KB n=278
56 Correct 15 ms 28628 KB n=500
57 Correct 16 ms 28616 KB n=500
58 Correct 15 ms 28584 KB n=500
59 Correct 17 ms 29012 KB n=2000
60 Correct 17 ms 29012 KB n=2000
61 Correct 16 ms 29012 KB n=2000
62 Correct 17 ms 29012 KB n=2000
63 Correct 20 ms 29116 KB n=2000
64 Correct 19 ms 29012 KB n=2000
65 Correct 18 ms 29080 KB n=2000
66 Correct 16 ms 29012 KB n=2000
67 Correct 17 ms 29012 KB n=2000
68 Correct 18 ms 29012 KB n=2000
69 Correct 17 ms 29056 KB n=2000
70 Correct 16 ms 29016 KB n=2000
71 Correct 16 ms 29012 KB n=2000
72 Correct 17 ms 29012 KB n=2000
73 Correct 16 ms 29052 KB n=2000
74 Correct 17 ms 28924 KB n=1844
75 Correct 16 ms 29012 KB n=2000
76 Correct 17 ms 28956 KB n=2000
77 Correct 18 ms 28956 KB n=2000
78 Correct 17 ms 29060 KB n=2000
79 Correct 16 ms 29064 KB n=2000
80 Correct 16 ms 29040 KB n=2000
81 Correct 16 ms 29048 KB n=2000
82 Correct 17 ms 29012 KB n=2000
83 Correct 17 ms 29080 KB n=2000
84 Correct 16 ms 28944 KB n=2000
85 Correct 17 ms 29028 KB n=2000
86 Correct 17 ms 29076 KB n=2000
87 Correct 17 ms 29012 KB n=2000
88 Correct 17 ms 29104 KB n=2000
89 Correct 16 ms 29100 KB n=2000
90 Correct 16 ms 29124 KB n=2000
91 Correct 19 ms 29020 KB n=2000

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 28500 KB n=5
2 Correct 14 ms 28500 KB n=100
3 Correct 13 ms 28460 KB n=100
4 Correct 14 ms 28452 KB n=100
5 Correct 14 ms 28500 KB n=100
6 Correct 14 ms 28536 KB n=100
7 Correct 13 ms 28464 KB n=100
8 Correct 13 ms 28512 KB n=100
9 Correct 17 ms 28500 KB n=100
10 Correct 14 ms 28480 KB n=100
11 Correct 14 ms 28500 KB n=100
12 Correct 14 ms 28448 KB n=100
13 Correct 14 ms 28500 KB n=100
14 Correct 14 ms 28520 KB n=100
15 Correct 14 ms 28500 KB n=100
16 Correct 15 ms 28428 KB n=100
17 Correct 13 ms 28536 KB n=100
18 Correct 16 ms 28500 KB n=100
19 Correct 13 ms 28424 KB n=100
20 Correct 13 ms 28476 KB n=100
21 Correct 14 ms 28500 KB n=100
22 Correct 14 ms 28524 KB n=100
23 Correct 14 ms 28436 KB n=100
24 Correct 14 ms 28448 KB n=100
25 Correct 15 ms 28432 KB n=100
26 Correct 14 ms 28456 KB n=12
27 Correct 14 ms 28500 KB n=100
28 Correct 15 ms 28684 KB n=500
29 Correct 15 ms 28632 KB n=500
30 Correct 15 ms 28628 KB n=500
31 Correct 14 ms 28644 KB n=500
32 Correct 14 ms 28628 KB n=500
33 Correct 15 ms 28596 KB n=500
34 Correct 14 ms 28620 KB n=500
35 Correct 14 ms 28628 KB n=500
36 Correct 13 ms 28652 KB n=500
37 Correct 15 ms 28648 KB n=500
38 Correct 16 ms 28588 KB n=500
39 Correct 14 ms 28628 KB n=500
40 Correct 14 ms 28628 KB n=500
41 Correct 14 ms 28628 KB n=500
42 Correct 14 ms 28568 KB n=500
43 Correct 14 ms 28628 KB n=500
44 Correct 15 ms 28576 KB n=500
45 Correct 17 ms 28628 KB n=500
46 Correct 15 ms 28628 KB n=500
47 Correct 15 ms 28628 KB n=500
48 Correct 15 ms 28636 KB n=500
49 Correct 15 ms 28772 KB n=500
50 Correct 15 ms 28656 KB n=500
51 Correct 14 ms 28540 KB n=500
52 Correct 15 ms 28660 KB n=500
53 Correct 16 ms 28600 KB n=500
54 Correct 14 ms 28628 KB n=500
55 Correct 15 ms 28508 KB n=278
56 Correct 15 ms 28628 KB n=500
57 Correct 16 ms 28616 KB n=500
58 Correct 15 ms 28584 KB n=500
59 Correct 17 ms 29012 KB n=2000
60 Correct 17 ms 29012 KB n=2000
61 Correct 16 ms 29012 KB n=2000
62 Correct 17 ms 29012 KB n=2000
63 Correct 20 ms 29116 KB n=2000
64 Correct 19 ms 29012 KB n=2000
65 Correct 18 ms 29080 KB n=2000
66 Correct 16 ms 29012 KB n=2000
67 Correct 17 ms 29012 KB n=2000
68 Correct 18 ms 29012 KB n=2000
69 Correct 17 ms 29056 KB n=2000
70 Correct 16 ms 29016 KB n=2000
71 Correct 16 ms 29012 KB n=2000
72 Correct 17 ms 29012 KB n=2000
73 Correct 16 ms 29052 KB n=2000
74 Correct 17 ms 28924 KB n=1844
75 Correct 16 ms 29012 KB n=2000
76 Correct 17 ms 28956 KB n=2000
77 Correct 18 ms 28956 KB n=2000
78 Correct 17 ms 29060 KB n=2000
79 Correct 16 ms 29064 KB n=2000
80 Correct 16 ms 29040 KB n=2000
81 Correct 16 ms 29048 KB n=2000
82 Correct 17 ms 29012 KB n=2000
83 Correct 17 ms 29080 KB n=2000
84 Correct 16 ms 28944 KB n=2000
85 Correct 17 ms 29028 KB n=2000
86 Correct 17 ms 29076 KB n=2000
87 Correct 17 ms 29012 KB n=2000
88 Correct 17 ms 29104 KB n=2000
89 Correct 16 ms 29100 KB n=2000
90 Correct 16 ms 29124 KB n=2000
91 Correct 19 ms 29020 KB n=2000
92 Correct 664 ms 94688 KB n=200000
93 Correct 848 ms 98352 KB n=200000
94 Correct 616 ms 101184 KB n=200000
95 Correct 659 ms 94516 KB n=200000
96 Correct 642 ms 94440 KB n=200000
97 Correct 937 ms 97456 KB n=200000
98 Correct 664 ms 94528 KB n=200000
99 Correct 804 ms 94144 KB n=200000
100 Correct 683 ms 94648 KB n=200000
101 Correct 565 ms 102176 KB n=200000
102 Correct 441 ms 95640 KB n=200000
103 Correct 459 ms 95852 KB n=200000
104 Correct 454 ms 95592 KB n=200000
105 Correct 465 ms 95376 KB n=200000
106 Correct 457 ms 95344 KB n=200000
107 Correct 497 ms 95356 KB n=200000
108 Correct 736 ms 94420 KB n=200000
109 Correct 734 ms 94296 KB n=200000
110 Correct 756 ms 94324 KB n=200000
111 Correct 677 ms 94468 KB n=200000
112 Correct 601 ms 101420 KB n=200000
113 Correct 909 ms 97516 KB n=200000
114 Correct 666 ms 94380 KB n=200000
115 Correct 1118 ms 95432 KB n=200000
116 Correct 647 ms 94176 KB n=200000
117 Correct 568 ms 101592 KB n=200000
118 Correct 1052 ms 96324 KB n=200000
119 Correct 639 ms 94212 KB n=200000
120 Correct 539 ms 101776 KB n=200000
121 Correct 505 ms 101756 KB n=200000
122 Correct 554 ms 102284 KB n=200000
123 Correct 521 ms 94940 KB n=200000
124 Correct 163 ms 44320 KB n=25264