oj.uz

Submission #506126

# Submission time Handle Problem Language Result Execution time Memory
506126 2022-01-11T16:33:09 Z Koosha_mv Construction of Highway (JOI18_construction) C++14
100 / 100
 485 ms 21560 KB 
#include <bits/stdc++.h>
using namespace std;
#define dbgv(v) cout<<#v<<" = "; f(i,0,v.size()) cout<<v[i]<<" "; cout<<endl
#define dbga(a,x,y) cout<<#a<<" = "; f(i,x,y) cout<<a[i]<<" "; cout<<endl
#define erorp(x) cout<<#x<<"={"<<(x.F)<<" , "<<x.S<<"}"<<endl
#define eror(x) cout<<#x<<'='<<(x)<<endl
#define f_(i,a,b) for(int i=a;i>=b;i--)
#define f(i,a,b) for(int i=a;i<b;i++)
#define nb(x) __builtin_popcount(x)
#define all(v) v.begin(),v.end()
#define bit(n,k) (((n)>>(k))&1)
#define maxm(a,b) a=max(a,b)
#define minm(a,b) a=min(a,b)
#define lst(x) x[x.size()-1]
#define sz(x) int(x.size())
#define mp make_pair
#define ll long long
#define pb push_back
#define S second
#define F first

const int N=1e5+99;

int n,t,col[N],sz[N],up[N],X[N],Y[N],h[N],par[N];
ll fenwik[N];
vector<int> g[N];
vector<pair<int,int> > res,v[N];

void add(int x, int val){ for(x++;x<N;x+=x&-x) fenwik[x]+=val; }
ll get(int x) { ll res=0; for (x++;x>0;x-=x&-x) res+=fenwik[x]; return res; }

void dfs1(int u){
	int x=-1;
	sz[u]=1;
	f(i,0,g[u].size()){
		int v=g[u][i];
		dfs1(v);
		sz[u]+=sz[v];
		if(x==-1 || sz[v]>sz[g[u][x]]){
			x=i;
		}
	}
	if(x!=-1){
		swap(g[u][0],g[u][x]);
	}
}
void dfs2(int u){
	//cout<<u<<" : "<<up[u]<<endl;
	int t=1;
	for(auto v : g[u]){
		h[v]=h[u]+1;
		if(t){
			up[v]=up[u];
		}
		else{
			up[v]=v;
		}
		dfs2(v);
		t=0;
	}
	v[up[u]].pb({col[u],1});
}
void del(int u,int x,int c){
	vector<pair<int,int> > vec;
	int t=x;
	while(t>0){
		int p=min(t,v[u].back().S);
		//cout<<u<<" : "<<v[u].back().F<<" "<<v[u].back().S<<endl;
		v[u].back().S-=p;
		t-=p;
		vec.pb({v[u].back().F,p});
		//erorp(vec.back());
		if(v[u].back().S>0 || t==0) break;
		v[u].pop_back();
	}
	v[u].pb({c,x});
	reverse(all(vec));
	for(auto p : vec){
		res.pb(p);
	}
	//eror(res.size());
}
void query(int u,int c){
	while(u>0){
		del(up[u],h[u]-h[up[u]]+1,c);
		u=par[up[u]];
	}
}
void get_ans(){
	//fill(fenwik,fenwik+N,0);
	ll ans=0;
	//cout<<"RES : "<<endl;
	res[0].S--;
	for(auto p : res){
		//erorp(p);
		add(p.F,p.S);
		ans+=get(p.F-1)*p.S;
	}
	for(auto p : res){
		add(p.F,-p.S);
	}
	res.clear();
	cout<<ans<<endl;
}

int main(){
	vector<int> vec;
	cin>>n;
	f(i,1,n+1){
		cin>>col[i];
		vec.pb(col[i]);
	}
	sort(all(vec));
	f(i,1,n+1){
		col[i]=lower_bound(all(vec),col[i])-vec.begin()+1;
	}
	f(i,1,n){
		cin>>X[i]>>Y[i];
		par[Y[i]]=X[i];
		g[X[i]].pb(Y[i]);
	}
	up[1]=1;
	dfs1(1);
	dfs2(1);
	f(i,1,n){
		query(Y[i],col[Y[i]]);
		get_ans();
		//if(i==2) return 0;
	}
}

Compilation message

construction.cpp: In function 'void dfs1(int)':
construction.cpp:8:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 | #define f(i,a,b) for(int i=a;i<b;i++)
......
   35 |  f(i,0,g[u].size()){
      |    ~~~~~~~~~~~~~~~             
construction.cpp:35:2: note: in expansion of macro 'f'
   35 |  f(i,0,g[u].size()){
      |  ^

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4996 KB Output is correct
2 Correct 3 ms 4952 KB Output is correct
3 Correct 3 ms 4996 KB Output is correct
4 Correct 4 ms 5008 KB Output is correct
5 Correct 4 ms 5068 KB Output is correct
6 Correct 4 ms 5012 KB Output is correct
7 Correct 4 ms 5068 KB Output is correct
8 Correct 4 ms 5068 KB Output is correct
9 Correct 4 ms 5136 KB Output is correct
10 Correct 4 ms 5144 KB Output is correct
11 Correct 4 ms 5068 KB Output is correct
12 Correct 5 ms 5068 KB Output is correct
13 Correct 5 ms 5012 KB Output is correct
14 Correct 4 ms 4996 KB Output is correct
15 Correct 4 ms 5068 KB Output is correct
16 Correct 4 ms 4992 KB Output is correct
17 Correct 4 ms 5068 KB Output is correct
18 Correct 4 ms 5008 KB Output is correct
19 Correct 4 ms 5068 KB Output is correct
20 Correct 4 ms 5068 KB Output is correct
21 Correct 4 ms 5012 KB Output is correct
22 Correct 5 ms 5196 KB Output is correct
23 Correct 4 ms 5068 KB Output is correct
24 Correct 4 ms 5004 KB Output is correct
25 Correct 4 ms 5060 KB Output is correct
26 Correct 4 ms 5112 KB Output is correct
27 Correct 4 ms 5068 KB Output is correct
28 Correct 3 ms 5068 KB Output is correct
29 Correct 4 ms 5068 KB Output is correct
30 Correct 4 ms 5004 KB Output is correct
31 Correct 4 ms 5012 KB Output is correct
32 Correct 5 ms 5012 KB Output is correct
33 Correct 5 ms 4984 KB Output is correct
34 Correct 4 ms 5064 KB Output is correct
35 Correct 4 ms 5004 KB Output is correct
36 Correct 4 ms 5096 KB Output is correct
37 Correct 4 ms 5004 KB Output is correct
38 Correct 4 ms 5068 KB Output is correct
39 Correct 4 ms 5012 KB Output is correct
40 Correct 4 ms 5008 KB Output is correct
41 Correct 4 ms 5000 KB Output is correct
42 Correct 4 ms 5068 KB Output is correct
43 Correct 4 ms 5008 KB Output is correct
44 Correct 4 ms 5068 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4996 KB Output is correct
2 Correct 3 ms 4952 KB Output is correct
3 Correct 3 ms 4996 KB Output is correct
4 Correct 4 ms 5008 KB Output is correct
5 Correct 4 ms 5068 KB Output is correct
6 Correct 4 ms 5012 KB Output is correct
7 Correct 4 ms 5068 KB Output is correct
8 Correct 4 ms 5068 KB Output is correct
9 Correct 4 ms 5136 KB Output is correct
10 Correct 4 ms 5144 KB Output is correct
11 Correct 4 ms 5068 KB Output is correct
12 Correct 5 ms 5068 KB Output is correct
13 Correct 5 ms 5012 KB Output is correct
14 Correct 4 ms 4996 KB Output is correct
15 Correct 4 ms 5068 KB Output is correct
16 Correct 4 ms 4992 KB Output is correct
17 Correct 4 ms 5068 KB Output is correct
18 Correct 4 ms 5008 KB Output is correct
19 Correct 4 ms 5068 KB Output is correct
20 Correct 4 ms 5068 KB Output is correct
21 Correct 4 ms 5012 KB Output is correct
22 Correct 5 ms 5196 KB Output is correct
23 Correct 4 ms 5068 KB Output is correct
24 Correct 4 ms 5004 KB Output is correct
25 Correct 4 ms 5060 KB Output is correct
26 Correct 4 ms 5112 KB Output is correct
27 Correct 4 ms 5068 KB Output is correct
28 Correct 3 ms 5068 KB Output is correct
29 Correct 4 ms 5068 KB Output is correct
30 Correct 4 ms 5004 KB Output is correct
31 Correct 4 ms 5012 KB Output is correct
32 Correct 5 ms 5012 KB Output is correct
33 Correct 5 ms 4984 KB Output is correct
34 Correct 4 ms 5064 KB Output is correct
35 Correct 4 ms 5004 KB Output is correct
36 Correct 4 ms 5096 KB Output is correct
37 Correct 4 ms 5004 KB Output is correct
38 Correct 4 ms 5068 KB Output is correct
39 Correct 4 ms 5012 KB Output is correct
40 Correct 4 ms 5008 KB Output is correct
41 Correct 4 ms 5000 KB Output is correct
42 Correct 4 ms 5068 KB Output is correct
43 Correct 4 ms 5008 KB Output is correct
44 Correct 4 ms 5068 KB Output is correct
45 Correct 5 ms 5068 KB Output is correct
46 Correct 15 ms 5352 KB Output is correct
47 Correct 15 ms 5332 KB Output is correct
48 Correct 14 ms 5444 KB Output is correct
49 Correct 13 ms 5644 KB Output is correct
50 Correct 13 ms 5708 KB Output is correct
51 Correct 13 ms 5720 KB Output is correct
52 Correct 12 ms 5468 KB Output is correct
53 Correct 14 ms 5464 KB Output is correct
54 Correct 13 ms 5456 KB Output is correct
55 Correct 13 ms 5584 KB Output is correct
56 Correct 13 ms 5452 KB Output is correct
57 Correct 15 ms 5392 KB Output is correct
58 Correct 16 ms 5444 KB Output is correct
59 Correct 17 ms 5392 KB Output is correct
60 Correct 17 ms 5356 KB Output is correct
61 Correct 12 ms 5564 KB Output is correct
62 Correct 14 ms 5508 KB Output is correct
63 Correct 12 ms 5480 KB Output is correct
64 Correct 13 ms 5396 KB Output is correct
65 Correct 16 ms 5388 KB Output is correct
66 Correct 14 ms 5324 KB Output is correct
67 Correct 15 ms 5380 KB Output is correct
68 Correct 12 ms 5620 KB Output is correct
69 Correct 12 ms 5544 KB Output is correct
70 Correct 12 ms 5472 KB Output is correct
71 Correct 14 ms 5444 KB Output is correct
72 Correct 15 ms 5360 KB Output is correct
73 Correct 15 ms 5324 KB Output is correct
74 Correct 13 ms 5496 KB Output is correct
75 Correct 12 ms 5396 KB Output is correct
76 Correct 13 ms 5464 KB Output is correct
77 Correct 15 ms 5700 KB Output is correct
78 Correct 12 ms 5384 KB Output is correct
79 Correct 12 ms 5376 KB Output is correct
80 Correct 12 ms 5368 KB Output is correct
81 Correct 14 ms 5444 KB Output is correct
82 Correct 14 ms 5464 KB Output is correct
83 Correct 13 ms 5404 KB Output is correct
84 Correct 13 ms 5452 KB Output is correct
85 Correct 14 ms 5452 KB Output is correct
86 Correct 13 ms 5376 KB Output is correct

Subtask #3
84.0 / 84.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4996 KB Output is correct
2 Correct 3 ms 4952 KB Output is correct
3 Correct 3 ms 4996 KB Output is correct
4 Correct 4 ms 5008 KB Output is correct
5 Correct 4 ms 5068 KB Output is correct
6 Correct 4 ms 5012 KB Output is correct
7 Correct 4 ms 5068 KB Output is correct
8 Correct 4 ms 5068 KB Output is correct
9 Correct 4 ms 5136 KB Output is correct
10 Correct 4 ms 5144 KB Output is correct
11 Correct 4 ms 5068 KB Output is correct
12 Correct 5 ms 5068 KB Output is correct
13 Correct 5 ms 5012 KB Output is correct
14 Correct 4 ms 4996 KB Output is correct
15 Correct 4 ms 5068 KB Output is correct
16 Correct 4 ms 4992 KB Output is correct
17 Correct 4 ms 5068 KB Output is correct
18 Correct 4 ms 5008 KB Output is correct
19 Correct 4 ms 5068 KB Output is correct
20 Correct 4 ms 5068 KB Output is correct
21 Correct 4 ms 5012 KB Output is correct
22 Correct 5 ms 5196 KB Output is correct
23 Correct 4 ms 5068 KB Output is correct
24 Correct 4 ms 5004 KB Output is correct
25 Correct 4 ms 5060 KB Output is correct
26 Correct 4 ms 5112 KB Output is correct
27 Correct 4 ms 5068 KB Output is correct
28 Correct 3 ms 5068 KB Output is correct
29 Correct 4 ms 5068 KB Output is correct
30 Correct 4 ms 5004 KB Output is correct
31 Correct 4 ms 5012 KB Output is correct
32 Correct 5 ms 5012 KB Output is correct
33 Correct 5 ms 4984 KB Output is correct
34 Correct 4 ms 5064 KB Output is correct
35 Correct 4 ms 5004 KB Output is correct
36 Correct 4 ms 5096 KB Output is correct
37 Correct 4 ms 5004 KB Output is correct
38 Correct 4 ms 5068 KB Output is correct
39 Correct 4 ms 5012 KB Output is correct
40 Correct 4 ms 5008 KB Output is correct
41 Correct 4 ms 5000 KB Output is correct
42 Correct 4 ms 5068 KB Output is correct
43 Correct 4 ms 5008 KB Output is correct
44 Correct 4 ms 5068 KB Output is correct
45 Correct 5 ms 5068 KB Output is correct
46 Correct 15 ms 5352 KB Output is correct
47 Correct 15 ms 5332 KB Output is correct
48 Correct 14 ms 5444 KB Output is correct
49 Correct 13 ms 5644 KB Output is correct
50 Correct 13 ms 5708 KB Output is correct
51 Correct 13 ms 5720 KB Output is correct
52 Correct 12 ms 5468 KB Output is correct
53 Correct 14 ms 5464 KB Output is correct
54 Correct 13 ms 5456 KB Output is correct
55 Correct 13 ms 5584 KB Output is correct
56 Correct 13 ms 5452 KB Output is correct
57 Correct 15 ms 5392 KB Output is correct
58 Correct 16 ms 5444 KB Output is correct
59 Correct 17 ms 5392 KB Output is correct
60 Correct 17 ms 5356 KB Output is correct
61 Correct 12 ms 5564 KB Output is correct
62 Correct 14 ms 5508 KB Output is correct
63 Correct 12 ms 5480 KB Output is correct
64 Correct 13 ms 5396 KB Output is correct
65 Correct 16 ms 5388 KB Output is correct
66 Correct 14 ms 5324 KB Output is correct
67 Correct 15 ms 5380 KB Output is correct
68 Correct 12 ms 5620 KB Output is correct
69 Correct 12 ms 5544 KB Output is correct
70 Correct 12 ms 5472 KB Output is correct
71 Correct 14 ms 5444 KB Output is correct
72 Correct 15 ms 5360 KB Output is correct
73 Correct 15 ms 5324 KB Output is correct
74 Correct 13 ms 5496 KB Output is correct
75 Correct 12 ms 5396 KB Output is correct
76 Correct 13 ms 5464 KB Output is correct
77 Correct 15 ms 5700 KB Output is correct
78 Correct 12 ms 5384 KB Output is correct
79 Correct 12 ms 5376 KB Output is correct
80 Correct 12 ms 5368 KB Output is correct
81 Correct 14 ms 5444 KB Output is correct
82 Correct 14 ms 5464 KB Output is correct
83 Correct 13 ms 5404 KB Output is correct
84 Correct 13 ms 5452 KB Output is correct
85 Correct 14 ms 5452 KB Output is correct
86 Correct 13 ms 5376 KB Output is correct
87 Correct 35 ms 6020 KB Output is correct
88 Correct 111 ms 8264 KB Output is correct
89 Correct 392 ms 15528 KB Output is correct
90 Correct 432 ms 15588 KB Output is correct
91 Correct 387 ms 15544 KB Output is correct
92 Correct 277 ms 21420 KB Output is correct
93 Correct 277 ms 21508 KB Output is correct
94 Correct 287 ms 21560 KB Output is correct
95 Correct 257 ms 18528 KB Output is correct
96 Correct 287 ms 18948 KB Output is correct
97 Correct 280 ms 19060 KB Output is correct
98 Correct 280 ms 19104 KB Output is correct
99 Correct 286 ms 18004 KB Output is correct
100 Correct 416 ms 15152 KB Output is correct
101 Correct 481 ms 15680 KB Output is correct
102 Correct 453 ms 15492 KB Output is correct
103 Correct 485 ms 15616 KB Output is correct
104 Correct 299 ms 17924 KB Output is correct
105 Correct 304 ms 17916 KB Output is correct
106 Correct 298 ms 17952 KB Output is correct
107 Correct 353 ms 14024 KB Output is correct
108 Correct 349 ms 14728 KB Output is correct
109 Correct 372 ms 15168 KB Output is correct
110 Correct 249 ms 20856 KB Output is correct
111 Correct 268 ms 18636 KB Output is correct
112 Correct 258 ms 18368 KB Output is correct
113 Correct 255 ms 17340 KB Output is correct
114 Correct 417 ms 15236 KB Output is correct
115 Correct 432 ms 14972 KB Output is correct
116 Correct 264 ms 17312 KB Output is correct
117 Correct 281 ms 16784 KB Output is correct
118 Correct 282 ms 16592 KB Output is correct
119 Correct 279 ms 16372 KB Output is correct
120 Correct 263 ms 16368 KB Output is correct
121 Correct 262 ms 16268 KB Output is correct
122 Correct 279 ms 16108 KB Output is correct
123 Correct 293 ms 16788 KB Output is correct
124 Correct 303 ms 16660 KB Output is correct
125 Correct 289 ms 16412 KB Output is correct
126 Correct 275 ms 16396 KB Output is correct
127 Correct 273 ms 16380 KB Output is correct
128 Correct 286 ms 16060 KB Output is correct