oj.uz

Submission #991992

# Submission time Handle Problem Language Result Execution time Memory
991992 2024-06-03T13:56:18 Z kshitij_sodani Fireworks (APIO16_fireworks) C++17
100 / 100
 422 ms 147796 KB 
#include <bits/stdc++.h>
using namespace std;

#define a first
#define b second
#define pb push_back
typedef long long llo;


vector<pair<llo,llo>> adj[300001];

#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
#define ord tree<pair<llo,llo>,null_type,less<pair<llo,llo>>,rb_tree_tag,tree_order_statistics_node_update>

ord xx[300001];
pair<llo,llo> fun[300001];
llo n,m;
llo cot=0;
llo dfs(llo no){

	vector<llo> cur;
	for(auto j:adj[no]){
		if(j.a>=n){
			fun[j.a]={-1,j.b};
			xx[j.a].insert({j.b,cot});
			cot++;
			xx[j.a].insert({j.b,cot});
			cot++;
			cur.pb(j.a);
		}
		else{
			llo x=dfs(j.a);
			cur.pb(x);
			llo la2=-1;
			while(xx[x].size()+fun[x].a>0){
				if(xx[x].size()+fun[x].a==1){
					la2=(*(xx[x].find_by_order(xx[x].size()-1))).a;
				}
				xx[x].erase(xx[x].find_by_order(xx[x].size()-1));
			}
			llo la=(*(xx[x].find_by_order(xx[x].size()-1))).a;
			if(la2==-1){
				la2=la;
			}
			fun[x].b+=j.b;
			if(xx[x].size()+fun[x].a==0){
				xx[x].erase(xx[x].find_by_order(xx[x].size()-1));
			}
			else{
				while(xx[x].size()+fun[x].a<-1){
					xx[x].insert({la,cot});
					cot++;
				}
			}
			assert(xx[x].size()+fun[x].a==-1);

			//sum is -1
			//xx[x].insert({la,cot});
			cot++;
			xx[x].insert({la+j.b,cot});
			cot++;
			xx[x].insert({la2+j.b,cot});
			cot++;
			/*if(no==1){
				cout<<fun[x].a<<":"<<fun[x].b<<endl;
				for(auto j:xx[x]){
					cout<<j.a<<",";
				}
				cout<<endl;
			}*/
			//fun[x].a+=-1;
			//fun[x].b+=j.b;
		}

	}
	pair<llo,llo> ma={-1,-1};
	for(auto j:cur){
		ma=max(ma,{(llo)xx[j].size(),j});
	}
	for(auto j:cur){
		if(j!=ma.b){
			for(auto jj:xx[j]){
				xx[ma.b].insert(jj);
			}
			fun[ma.b].a+=fun[j].a;
			fun[ma.b].b+=fun[j].b;
		}
	}
	/*cout<<no<<"::"<<ma.b<<endl;
	cout<<fun[ma.b].a<<";"<<fun[ma.b].b<<endl;
	for(auto j:xx[ma.b]){
		cout<<j.a<<",";
	}
	cout<<endl;*/
	return ma.b;




}
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);


	
	cin>>n>>m;
	for(llo i=1;i<n+m;i++){
		llo aa,bb;
		cin>>aa>>bb;
		aa--;
		adj[aa].pb({i,bb});
	}


	llo ha=dfs(0);
	llo ans=fun[ha].a;
	vector<llo> ne;
	for(auto j:xx[ha]){
		ne.pb(j.a);
	}
	llo val=fun[ha].b;
	llo pr=0;
	for(llo i=0;i<ne.size();i++){
		if(fun[ha].a>=0){
			break;
		}
		val+=fun[ha].a*(ne[i]-pr);
		pr=ne[i];
		fun[ha].a+=1;
	}
	cout<<val<<endl;
	/*cout<<fun[ha].a<<"::"<<fun[ha].b<<endl;
	for(auto j:xx[ha]){
		cout<<j.a<<",";
	}
	cout<<endl;


*/






	return 0;
}

Compilation message

fireworks.cpp: In function 'llo dfs(llo)':
fireworks.cpp:52:32: warning: comparison of integer expressions of different signedness: 'long long unsigned int' and 'int' [-Wsign-compare]
   52 |     while(xx[x].size()+fun[x].a<-1){
      |           ~~~~~~~~~~~~~~~~~~~~~^~~
In file included from /usr/include/c++/10/ext/pb_ds/detail/pat_trie_/pat_trie_.hpp:45,
                 from /usr/include/c++/10/ext/pb_ds/detail/container_base_dispatch.hpp:90,
                 from /usr/include/c++/10/ext/pb_ds/assoc_container.hpp:48,
                 from fireworks.cpp:12:
fireworks.cpp:57:32: warning: comparison of integer expressions of different signedness: 'long long unsigned int' and 'int' [-Wsign-compare]
   57 |    assert(xx[x].size()+fun[x].a==-1);
      |           ~~~~~~~~~~~~~~~~~~~~~^~~~
fireworks.cpp: In function 'int main()':
fireworks.cpp:126:15: warning: comparison of integer expressions of different signedness: 'llo' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  126 |  for(llo i=0;i<ne.size();i++){
      |              ~^~~~~~~~~~
fireworks.cpp:119:6: warning: unused variable 'ans' [-Wunused-variable]
  119 |  llo ans=fun[ha].a;
      |      ^~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 35932 KB Output is correct
2 Correct 16 ms 35924 KB Output is correct
3 Correct 15 ms 35928 KB Output is correct
4 Correct 15 ms 35932 KB Output is correct
5 Correct 14 ms 36064 KB Output is correct
6 Correct 14 ms 35932 KB Output is correct
7 Correct 14 ms 35892 KB Output is correct
8 Correct 14 ms 35948 KB Output is correct
9 Correct 14 ms 35928 KB Output is correct
10 Correct 15 ms 35932 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 35920 KB Output is correct
2 Correct 14 ms 35932 KB Output is correct
3 Correct 14 ms 35920 KB Output is correct
4 Correct 15 ms 35928 KB Output is correct
5 Correct 17 ms 35932 KB Output is correct
6 Correct 17 ms 35976 KB Output is correct
7 Correct 18 ms 35912 KB Output is correct
8 Correct 17 ms 35932 KB Output is correct
9 Correct 16 ms 36024 KB Output is correct
10 Correct 22 ms 35932 KB Output is correct
11 Correct 20 ms 36188 KB Output is correct
12 Correct 16 ms 35932 KB Output is correct
13 Correct 14 ms 35932 KB Output is correct
14 Correct 15 ms 36188 KB Output is correct
15 Correct 18 ms 35928 KB Output is correct
16 Correct 15 ms 35932 KB Output is correct
17 Correct 15 ms 35960 KB Output is correct
18 Correct 15 ms 35932 KB Output is correct
19 Correct 15 ms 35932 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 35932 KB Output is correct
2 Correct 16 ms 35924 KB Output is correct
3 Correct 15 ms 35928 KB Output is correct
4 Correct 15 ms 35932 KB Output is correct
5 Correct 14 ms 36064 KB Output is correct
6 Correct 14 ms 35932 KB Output is correct
7 Correct 14 ms 35892 KB Output is correct
8 Correct 14 ms 35948 KB Output is correct
9 Correct 14 ms 35928 KB Output is correct
10 Correct 15 ms 35932 KB Output is correct
11 Correct 14 ms 35920 KB Output is correct
12 Correct 14 ms 35932 KB Output is correct
13 Correct 14 ms 35920 KB Output is correct
14 Correct 15 ms 35928 KB Output is correct
15 Correct 17 ms 35932 KB Output is correct
16 Correct 17 ms 35976 KB Output is correct
17 Correct 18 ms 35912 KB Output is correct
18 Correct 17 ms 35932 KB Output is correct
19 Correct 16 ms 36024 KB Output is correct
20 Correct 22 ms 35932 KB Output is correct
21 Correct 20 ms 36188 KB Output is correct
22 Correct 16 ms 35932 KB Output is correct
23 Correct 14 ms 35932 KB Output is correct
24 Correct 15 ms 36188 KB Output is correct
25 Correct 18 ms 35928 KB Output is correct
26 Correct 15 ms 35932 KB Output is correct
27 Correct 15 ms 35960 KB Output is correct
28 Correct 15 ms 35932 KB Output is correct
29 Correct 15 ms 35932 KB Output is correct
30 Correct 20 ms 36172 KB Output is correct
31 Correct 16 ms 36188 KB Output is correct
32 Correct 18 ms 36212 KB Output is correct
33 Correct 18 ms 36444 KB Output is correct
34 Correct 18 ms 36444 KB Output is correct
35 Correct 17 ms 36700 KB Output is correct
36 Correct 19 ms 36700 KB Output is correct
37 Correct 20 ms 36700 KB Output is correct
38 Correct 19 ms 36956 KB Output is correct
39 Correct 21 ms 36956 KB Output is correct
40 Correct 19 ms 37212 KB Output is correct
41 Correct 19 ms 37212 KB Output is correct
42 Correct 19 ms 36188 KB Output is correct
43 Correct 20 ms 37248 KB Output is correct
44 Correct 19 ms 37100 KB Output is correct
45 Correct 20 ms 37028 KB Output is correct
46 Correct 21 ms 37468 KB Output is correct
47 Correct 21 ms 37468 KB Output is correct
48 Correct 22 ms 37468 KB Output is correct
49 Correct 21 ms 37500 KB Output is correct
50 Correct 22 ms 37212 KB Output is correct
51 Correct 21 ms 37212 KB Output is correct
52 Correct 26 ms 37204 KB Output is correct
53 Correct 23 ms 37256 KB Output is correct
54 Correct 21 ms 37736 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 35932 KB Output is correct
2 Correct 16 ms 35924 KB Output is correct
3 Correct 15 ms 35928 KB Output is correct
4 Correct 15 ms 35932 KB Output is correct
5 Correct 14 ms 36064 KB Output is correct
6 Correct 14 ms 35932 KB Output is correct
7 Correct 14 ms 35892 KB Output is correct
8 Correct 14 ms 35948 KB Output is correct
9 Correct 14 ms 35928 KB Output is correct
10 Correct 15 ms 35932 KB Output is correct
11 Correct 14 ms 35920 KB Output is correct
12 Correct 14 ms 35932 KB Output is correct
13 Correct 14 ms 35920 KB Output is correct
14 Correct 15 ms 35928 KB Output is correct
15 Correct 17 ms 35932 KB Output is correct
16 Correct 17 ms 35976 KB Output is correct
17 Correct 18 ms 35912 KB Output is correct
18 Correct 17 ms 35932 KB Output is correct
19 Correct 16 ms 36024 KB Output is correct
20 Correct 22 ms 35932 KB Output is correct
21 Correct 20 ms 36188 KB Output is correct
22 Correct 16 ms 35932 KB Output is correct
23 Correct 14 ms 35932 KB Output is correct
24 Correct 15 ms 36188 KB Output is correct
25 Correct 18 ms 35928 KB Output is correct
26 Correct 15 ms 35932 KB Output is correct
27 Correct 15 ms 35960 KB Output is correct
28 Correct 15 ms 35932 KB Output is correct
29 Correct 15 ms 35932 KB Output is correct
30 Correct 20 ms 36172 KB Output is correct
31 Correct 16 ms 36188 KB Output is correct
32 Correct 18 ms 36212 KB Output is correct
33 Correct 18 ms 36444 KB Output is correct
34 Correct 18 ms 36444 KB Output is correct
35 Correct 17 ms 36700 KB Output is correct
36 Correct 19 ms 36700 KB Output is correct
37 Correct 20 ms 36700 KB Output is correct
38 Correct 19 ms 36956 KB Output is correct
39 Correct 21 ms 36956 KB Output is correct
40 Correct 19 ms 37212 KB Output is correct
41 Correct 19 ms 37212 KB Output is correct
42 Correct 19 ms 36188 KB Output is correct
43 Correct 20 ms 37248 KB Output is correct
44 Correct 19 ms 37100 KB Output is correct
45 Correct 20 ms 37028 KB Output is correct
46 Correct 21 ms 37468 KB Output is correct
47 Correct 21 ms 37468 KB Output is correct
48 Correct 22 ms 37468 KB Output is correct
49 Correct 21 ms 37500 KB Output is correct
50 Correct 22 ms 37212 KB Output is correct
51 Correct 21 ms 37212 KB Output is correct
52 Correct 26 ms 37204 KB Output is correct
53 Correct 23 ms 37256 KB Output is correct
54 Correct 21 ms 37736 KB Output is correct
55 Correct 26 ms 40284 KB Output is correct
56 Correct 52 ms 46724 KB Output is correct
57 Correct 82 ms 53204 KB Output is correct
58 Correct 108 ms 57992 KB Output is correct
59 Correct 128 ms 66256 KB Output is correct
60 Correct 164 ms 72708 KB Output is correct
61 Correct 209 ms 77728 KB Output is correct
62 Correct 213 ms 82124 KB Output is correct
63 Correct 256 ms 89036 KB Output is correct
64 Correct 269 ms 89812 KB Output is correct
65 Correct 123 ms 111188 KB Output is correct
66 Correct 120 ms 111188 KB Output is correct
67 Correct 97 ms 50516 KB Output is correct
68 Correct 263 ms 110792 KB Output is correct
69 Correct 296 ms 106960 KB Output is correct
70 Correct 299 ms 106960 KB Output is correct
71 Correct 405 ms 147652 KB Output is correct
72 Correct 422 ms 147796 KB Output is correct
73 Correct 383 ms 129488 KB Output is correct
74 Correct 407 ms 130468 KB Output is correct
75 Correct 381 ms 129388 KB Output is correct
76 Correct 387 ms 130328 KB Output is correct
77 Correct 368 ms 126692 KB Output is correct
78 Correct 386 ms 124228 KB Output is correct
79 Correct 411 ms 139008 KB Output is correct