oj.uz

Submission #555736

# Submission time Handle Problem Language Result Execution time Memory
555736 2022-05-01T12:11:41 Z Koosha_mv Reconstruction Project (JOI22_reconstruction) C++14
100 / 100
 2930 ms 31588 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 Add(x,y) x=(x+y)%mod
#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
#define int ll

typedef pair<int,pair<int,int>> shit;

const int maxn=505,maxm=1e5+99,inf=2e9;

int n,m,q,L[maxm],R[maxm],fenwik[2][maxm];
pair<int,int> par[maxn];
vector<shit> a,b;
vector<pair<int,int>> g[maxn];

void add(int x, int val,int s){ for(x+=3;x<maxm;x+=x&-x) fenwik[s][x]+=val; }
int get(int x,int s) { int res=0; for (x+=3;x>0;x-=x&-x) res+=fenwik[s][x]; return res; }

void dfs(int u,int p){
	for(auto [v,w] : g[u]){
		if(v==p) continue ;
		dfs(v,u);
		par[v]={u,w};
	}
}
vector<int> solve(vector<shit> vec){
	f(i,1,n+1) g[i].clear();
	vector<int> ans;
	int i=0;
	for(auto [w,edge] : vec){
		fill(par,par+maxn,mp(0,0));
		dfs(edge.F,0);
		if(par[edge.S].F){
			int u=0,v=0,mn=sz(vec);
			for(int x=edge.S;x!=edge.F;x=par[x].F){
				if(par[x].S<mn){
					u=x,v=par[x].F;
					mn=par[x].S;;
				}
			}
			f(i,0,g[u].size()) if(g[u][i].F==v){
				g[u].erase(g[u].begin()+i);
			}
			f(i,0,g[v].size()) if(g[v][i].F==u){
				g[v].erase(g[v].begin()+i);
			}
			ans.pb(mn);
		}
		else{
			ans.pb(-1);
		}
		g[edge.F].pb({edge.S,i});
		g[edge.S].pb({edge.F,i});
		i++;
	}
	return ans;
}
int32_t main(){
	ios:: sync_with_stdio(0), cin.tie(0), cout.tie(0);
	cin>>n>>m;
	f(i,0,m){
		int u,v,w;
		cin>>u>>v>>w;
		a.pb({w,{u,v}});
		b.pb({-w,{u,v}});
	}
	sort(all(a));
	sort(all(b));
	vector<int> A=solve(a),B=solve(b);
	vector<shit> vec;
	reverse(all(B));
	f(i,0,B.size()) B[i]=m-B[i]-1;
	f(i,0,m){
		if(A[i]==-1) L[i]=0;
		else L[i]=(a[i].F+a[A[i]].F)/2+1;
	}
	f(i,0,m){
		if(B[i]==m) R[i]=inf;
		else{
			R[i]=(a[B[i]].F+a[i].F)/2+1;
		}
		vec.pb({L[i],{i,+1}});
		vec.pb({R[i],{i,-1}});
	}
	int sum=0,cnt=0,p=0;
	sort(all(vec));
	cin>>q;
	f(i,0,q){
		int x;
		cin>>x;
		while(p<vec.size() && vec[p].F<=x){
			add(vec[p].S.F,vec[p].S.S,0);
			add(vec[p].S.F,vec[p].S.S*a[vec[p].S.F].F,1);
			p++;
		}
		int l=-1,r=m;
		while(l+1<r){
			int mid=(l+r)>>1;
			if(a[mid].F<=x) l=mid;
			else r=mid;
		}
		cout<<get(l,0)*x-get(l,1)+(get(m,1)-get(l,1))-x*(get(m,0)-get(l,0))<<'\n';
	}
}

Compilation message

reconstruction.cpp: In function 'void dfs(long long int, long long int)':
reconstruction.cpp:37:11: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   37 |  for(auto [v,w] : g[u]){
      |           ^
reconstruction.cpp: In function 'std::vector<long long int> solve(std::vector<std::pair<long long int, std::pair<long long int, long long int> > >)':
reconstruction.cpp:47:11: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   47 |  for(auto [w,edge] : vec){
      |           ^
reconstruction.cpp:8:31: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 | #define f(i,a,b) for(int i=a;i<b;i++)
......
   58 |    f(i,0,g[u].size()) if(g[u][i].F==v){
      |      ~~~~~~~~~~~~~~~           
reconstruction.cpp:58:4: note: in expansion of macro 'f'
   58 |    f(i,0,g[u].size()) if(g[u][i].F==v){
      |    ^
reconstruction.cpp:8:31: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 | #define f(i,a,b) for(int i=a;i<b;i++)
......
   61 |    f(i,0,g[v].size()) if(g[v][i].F==u){
      |      ~~~~~~~~~~~~~~~           
reconstruction.cpp:61:4: note: in expansion of macro 'f'
   61 |    f(i,0,g[v].size()) if(g[v][i].F==u){
      |    ^
reconstruction.cpp: In function 'int32_t main()':
reconstruction.cpp:8:31: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 | #define f(i,a,b) for(int i=a;i<b;i++)
......
   89 |  f(i,0,B.size()) B[i]=m-B[i]-1;
      |    ~~~~~~~~~~~~                
reconstruction.cpp:89:2: note: in expansion of macro 'f'
   89 |  f(i,0,B.size()) B[i]=m-B[i]-1;
      |  ^
reconstruction.cpp:108:10: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, std::pair<long long int, long long int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  108 |   while(p<vec.size() && vec[p].F<=x){
      |         ~^~~~~~~~~~~
reconstruction.cpp:102:6: warning: unused variable 'sum' [-Wunused-variable]
  102 |  int sum=0,cnt=0,p=0;
      |      ^~~
reconstruction.cpp:102:12: warning: unused variable 'cnt' [-Wunused-variable]
  102 |  int sum=0,cnt=0,p=0;
      |            ^~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 2498 ms 18508 KB Output is correct
21 Correct 1319 ms 18316 KB Output is correct
22 Correct 2114 ms 18340 KB Output is correct
23 Correct 2318 ms 18312 KB Output is correct
24 Correct 2408 ms 18456 KB Output is correct
25 Correct 2492 ms 18264 KB Output is correct
26 Correct 2563 ms 18436 KB Output is correct
27 Correct 2572 ms 18332 KB Output is correct
28 Correct 2504 ms 18376 KB Output is correct
29 Correct 1256 ms 18436 KB Output is correct
30 Correct 2462 ms 18072 KB Output is correct
31 Correct 2535 ms 18168 KB Output is correct
32 Correct 2496 ms 18348 KB Output is correct
33 Correct 2581 ms 17928 KB Output is correct
34 Correct 1183 ms 19760 KB Output is correct
35 Correct 2536 ms 17956 KB Output is correct

Subtask #3
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 2176 ms 29332 KB Output is correct
5 Correct 2277 ms 29428 KB Output is correct
6 Correct 2156 ms 29404 KB Output is correct
7 Correct 474 ms 31252 KB Output is correct
8 Correct 465 ms 31420 KB Output is correct
9 Correct 448 ms 31340 KB Output is correct
10 Correct 2125 ms 28660 KB Output is correct
11 Correct 433 ms 31588 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 250 ms 13004 KB Output is correct
21 Correct 235 ms 12904 KB Output is correct
22 Correct 241 ms 12924 KB Output is correct
23 Correct 254 ms 12904 KB Output is correct
24 Correct 254 ms 12924 KB Output is correct
25 Correct 242 ms 12856 KB Output is correct
26 Correct 243 ms 12852 KB Output is correct
27 Correct 245 ms 12864 KB Output is correct
28 Correct 251 ms 12784 KB Output is correct
29 Correct 249 ms 12812 KB Output is correct
30 Correct 239 ms 12876 KB Output is correct
31 Correct 241 ms 12880 KB Output is correct
32 Correct 227 ms 13520 KB Output is correct
33 Correct 241 ms 12768 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 2498 ms 18508 KB Output is correct
21 Correct 1319 ms 18316 KB Output is correct
22 Correct 2114 ms 18340 KB Output is correct
23 Correct 2318 ms 18312 KB Output is correct
24 Correct 2408 ms 18456 KB Output is correct
25 Correct 2492 ms 18264 KB Output is correct
26 Correct 2563 ms 18436 KB Output is correct
27 Correct 2572 ms 18332 KB Output is correct
28 Correct 2504 ms 18376 KB Output is correct
29 Correct 1256 ms 18436 KB Output is correct
30 Correct 2462 ms 18072 KB Output is correct
31 Correct 2535 ms 18168 KB Output is correct
32 Correct 2496 ms 18348 KB Output is correct
33 Correct 2581 ms 17928 KB Output is correct
34 Correct 1183 ms 19760 KB Output is correct
35 Correct 2536 ms 17956 KB Output is correct
36 Correct 2524 ms 18632 KB Output is correct
37 Correct 1386 ms 18704 KB Output is correct
38 Correct 2141 ms 18516 KB Output is correct
39 Correct 2331 ms 18560 KB Output is correct
40 Correct 2417 ms 18480 KB Output is correct
41 Correct 2424 ms 18528 KB Output is correct
42 Correct 2449 ms 18508 KB Output is correct
43 Correct 2515 ms 18456 KB Output is correct
44 Correct 2485 ms 18464 KB Output is correct
45 Correct 1252 ms 18704 KB Output is correct
46 Correct 2566 ms 18564 KB Output is correct
47 Correct 2471 ms 18564 KB Output is correct
48 Correct 2459 ms 18552 KB Output is correct
49 Correct 2517 ms 18012 KB Output is correct
50 Correct 1145 ms 19764 KB Output is correct
51 Correct 2517 ms 18008 KB Output is correct

Subtask #6
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 ms 340 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 2498 ms 18508 KB Output is correct
21 Correct 1319 ms 18316 KB Output is correct
22 Correct 2114 ms 18340 KB Output is correct
23 Correct 2318 ms 18312 KB Output is correct
24 Correct 2408 ms 18456 KB Output is correct
25 Correct 2492 ms 18264 KB Output is correct
26 Correct 2563 ms 18436 KB Output is correct
27 Correct 2572 ms 18332 KB Output is correct
28 Correct 2504 ms 18376 KB Output is correct
29 Correct 1256 ms 18436 KB Output is correct
30 Correct 2462 ms 18072 KB Output is correct
31 Correct 2535 ms 18168 KB Output is correct
32 Correct 2496 ms 18348 KB Output is correct
33 Correct 2581 ms 17928 KB Output is correct
34 Correct 1183 ms 19760 KB Output is correct
35 Correct 2536 ms 17956 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 0 ms 340 KB Output is correct
38 Correct 1 ms 340 KB Output is correct
39 Correct 2176 ms 29332 KB Output is correct
40 Correct 2277 ms 29428 KB Output is correct
41 Correct 2156 ms 29404 KB Output is correct
42 Correct 474 ms 31252 KB Output is correct
43 Correct 465 ms 31420 KB Output is correct
44 Correct 448 ms 31340 KB Output is correct
45 Correct 2125 ms 28660 KB Output is correct
46 Correct 433 ms 31588 KB Output is correct
47 Correct 1 ms 340 KB Output is correct
48 Correct 250 ms 13004 KB Output is correct
49 Correct 235 ms 12904 KB Output is correct
50 Correct 241 ms 12924 KB Output is correct
51 Correct 254 ms 12904 KB Output is correct
52 Correct 254 ms 12924 KB Output is correct
53 Correct 242 ms 12856 KB Output is correct
54 Correct 243 ms 12852 KB Output is correct
55 Correct 245 ms 12864 KB Output is correct
56 Correct 251 ms 12784 KB Output is correct
57 Correct 249 ms 12812 KB Output is correct
58 Correct 239 ms 12876 KB Output is correct
59 Correct 241 ms 12880 KB Output is correct
60 Correct 227 ms 13520 KB Output is correct
61 Correct 241 ms 12768 KB Output is correct
62 Correct 2524 ms 18632 KB Output is correct
63 Correct 1386 ms 18704 KB Output is correct
64 Correct 2141 ms 18516 KB Output is correct
65 Correct 2331 ms 18560 KB Output is correct
66 Correct 2417 ms 18480 KB Output is correct
67 Correct 2424 ms 18528 KB Output is correct
68 Correct 2449 ms 18508 KB Output is correct
69 Correct 2515 ms 18456 KB Output is correct
70 Correct 2485 ms 18464 KB Output is correct
71 Correct 1252 ms 18704 KB Output is correct
72 Correct 2566 ms 18564 KB Output is correct
73 Correct 2471 ms 18564 KB Output is correct
74 Correct 2459 ms 18552 KB Output is correct
75 Correct 2517 ms 18012 KB Output is correct
76 Correct 1145 ms 19764 KB Output is correct
77 Correct 2517 ms 18008 KB Output is correct
78 Correct 2754 ms 28464 KB Output is correct
79 Correct 1562 ms 30320 KB Output is correct
80 Correct 2423 ms 29440 KB Output is correct
81 Correct 2557 ms 29380 KB Output is correct
82 Correct 2930 ms 28956 KB Output is correct
83 Correct 2890 ms 28928 KB Output is correct
84 Correct 2740 ms 28912 KB Output is correct
85 Correct 2729 ms 28896 KB Output is correct
86 Correct 2704 ms 28408 KB Output is correct
87 Correct 1500 ms 30492 KB Output is correct
88 Correct 2625 ms 28452 KB Output is correct
89 Correct 2573 ms 28348 KB Output is correct
90 Correct 2571 ms 28316 KB Output is correct
91 Correct 2575 ms 27764 KB Output is correct
92 Correct 1288 ms 31500 KB Output is correct
93 Correct 2543 ms 28808 KB Output is correct