oj.uz

Submission #968719

# Submission time Handle Problem Language Result Execution time Memory
968719 2024-04-23T23:17:10 Z shadow_sami Making Friends on Joitter is Fun (JOI20_joitter2) C++17
100 / 100
 950 ms 132276 KB 
#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
typedef long long int ll;
typedef vector<ll> vi;
typedef vector<vector<ll>> vvi;
typedef pair<ll,ll> pi;
typedef map<ll,ll> mi;
typedef long double ld;
typedef vector<ld> vd;
typedef vector<vector<ld>> vvd;
typedef pair<ld,ld> pd;
#define ff first
#define ss second
#define srt(a) sort(a.begin(),a.end());
#define fip(k, n) for (ll i = k; i < n; i++)
#define fjp(k, n) for (ll j = k; j < n; j++)
#define fin(k, n) for (ll i = k; i >= n; i--)
#define fjn(k, n) for (ll j = k; j >= n; j--)
#define fp(k, n, m) for (ll k = n; k < m; k++)
#define fn(k, n, m) for (ll k = n; k >= m; k--)
#define ordered_set tree<pi, null_type,less< pi >, rb_tree_tag,tree_order_statistics_node_update>
#define totalOne(n) __builtin_popcount(n)
#define backZero(n) __builtin_ctzll(n)
#define frontZero(n) __builtin_clzll(n)
#define fx(k) for ( auto x : k )
#define test ll t;cin >> t;while (t--)
#define nli "\n"

// ==========================(debug)============================================================================================== //

#ifndef ONLINE_JUDGE
#define debug(x) cerr << #x <<" "; _printn(x); cerr << nli;
#else
#define debug(x)
#endif

void _printn(ll x){ cerr<<x<<" "; }
void _printn(int x){ cerr<<x<<" "; }
void _printn(ld x){ cerr<<x<<" "; }
void _printn(double x){ cerr<<x<<" "; }
void _printn(string x){ cerr<<x<<" "; }
void _printn(char x){ cerr<<x<<" "; }
void _printn(bool x){ cerr<<x<<" "; }
template<class T,class V>void _printn(pair<T,V> vv);
template<class T> void _printn(vector<T> vv);
template<class T> void _printn(set<T> vv);
template<class T,class V> void _printn(map<T,V> vv);
template<class T> void _printn(multiset<T> vv);
template<class T,class V>void _printn(pair<T,V> vv){ cerr<<"( ";_printn(vv.ff);cerr<<",";_printn(vv.ss);cerr<<")";}
template<class T> void _printn(vector<T> vv){ cerr<<"[ "; for(auto xx:vv){ _printn(xx);cerr<<" "; } cerr<<"]"; };
template<class T> void _printn(set<T> vv){ cerr<<"{ "; for(auto xx:vv){ _printn(xx);cerr<<" "; } cerr<<"}"; };
template<class T> void _printn(multiset<T> vv){ cerr<<"{ "; for(auto xx:vv){ _printn(xx);cerr<<" "; } cerr<<"}"; };
template<class T,class V> void _printn(map<T,V> vv){ cerr<<"{ "; for(auto xx:vv){ _printn(xx);cerr<<" "; } cerr<<"}"; };

// ==========================(debug)============================================================================================== //

ll n,m,tp,tp2,res,cnt,sum,tptp,ans;
const ll mx = 5e5+5;
const ll mod = 1e9+7;

// ==========================(MOD)=============================================================================================== //

ll mod_add(ll aa,ll bb){ return ((aa%mod)+(bb%mod))%mod; }
ll mod_minus(ll aa,ll bb){ return (((aa%mod)-(bb%mod))+10*mod)%mod; }
ll mod_mul(ll aa,ll bb){ return ((aa%mod)*(bb%mod))%mod; }
ll mod_power(ll aa,ll bb){ aa%=mod; ll empowered = 1; bb%=mod-1; while(bb > 0){ if(bb & 1) empowered = mod_mul(empowered,aa); bb = bb >> 1; aa = mod_mul(aa,aa); } return empowered; }
ll mod_divi(ll aa,ll bb){ aa=mod_mul(aa,mod_power(bb,mod-2)); return aa; }

// ==========================(MOD)=============================================================================================== //

bool f = false;
ll sr,de;

typedef struct Disjoint_Set_Union{
	ll sz[mx];
	ll par[mx];
	set<ll> st[mx];
	queue<pi> q;
	set<ll> adj[mx];
	set<ll> radj[mx];
	pi pt;
	void init(ll k){
		k += 5;		
		fip(1,k+1){
			sz[i] = 1;
			par[i] = i;
			st[i].insert(i);
		}
		return;
	}
	ll find(ll k){
		return ((par[k]==k)?k:par[k]=find(par[k]));
	}
	ll get(ll x){
		return st[x].size() + adj[x].size() + radj[x].size();
	}
	void aa(ll u,ll v){
		adj[u].insert(v);
		radj[v].insert(u);
		if(adj[v].find(u)!=adj[v].end())
			q.push({u,v});		
		return;
	}
	void bb(ll u,ll v){
		u = find(u);
		v = find(v);
		if(u==v)
			return;
		if(get(u) < get(v))
			swap(u,v);
		ans += sz[u] * st[v].size();
		ans += sz[v] * st[u].size();
		sz[u] += sz[v];
		par[v] = u;
		fx(st[v]){
			if(st[u].find(x)!=st[u].end())
				ans -= sz[u];
			else
				st[u].insert(x);
		}
		adj[u].erase(v);
		adj[v].erase(u);
		radj[u].erase(v);
		radj[v].erase(u);
		fx(adj[v]){
			radj[x].erase(v);
			aa(u,x);
		}
		fx(radj[v]){
			adj[x].erase(v);
			aa(x,u);
		}
	}
	void unite(ll u,ll v){
		v = find(v);		
		if(st[v].find(u)==st[v].end() && find(u)!=v){
			st[v].insert(u);
			u = find(u);
			ans += sz[v];
			aa(u,v);
			while(q.size()){
				pt = q.front();
				q.pop();				
				bb(pt.ff,pt.ss);
			}
		}
	}
}DSU;

DSU dsu;

int main(){
    ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    // #ifndef ONLINE_JUDGE
    //     freopen("input1.txt", "r", stdin);
    //     freopen("output1.txt", "w", stdout);
    //     freopen("error1.txt", "w", stderr);
    // #endif // ONLINE_JUDGE

        cin>>n>>m;
        dsu.init(n);
        ans = 0;
        while(m--){
        	cin>>sr>>de;
        	dsu.unite(sr,de);
        	cout<<ans<<nli;
        }
        
    cerr << "Time elapsed: " << setprecision(6) << 1000.0 * clock() / CLOCKS_PER_SEC << "ms\n";
    return 0;
}

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 74332 KB Output is correct
2 Correct 15 ms 74332 KB Output is correct
3 Correct 17 ms 74332 KB Output is correct
4 Correct 15 ms 74332 KB Output is correct
5 Correct 15 ms 74332 KB Output is correct
6 Correct 18 ms 74328 KB Output is correct
7 Correct 15 ms 74332 KB Output is correct
8 Correct 15 ms 74492 KB Output is correct
9 Correct 17 ms 74332 KB Output is correct
10 Correct 16 ms 74332 KB Output is correct
11 Correct 15 ms 74332 KB Output is correct
12 Correct 15 ms 74332 KB Output is correct
13 Correct 15 ms 74424 KB Output is correct
14 Correct 15 ms 74332 KB Output is correct
15 Correct 15 ms 74332 KB Output is correct
16 Correct 15 ms 74332 KB Output is correct
17 Correct 15 ms 74332 KB Output is correct
18 Correct 17 ms 74328 KB Output is correct
19 Correct 15 ms 74332 KB Output is correct
20 Correct 16 ms 74332 KB Output is correct
21 Correct 17 ms 74332 KB Output is correct
22 Correct 15 ms 74268 KB Output is correct
23 Correct 19 ms 74440 KB Output is correct
24 Correct 15 ms 74328 KB Output is correct
25 Correct 16 ms 74328 KB Output is correct
26 Correct 15 ms 74332 KB Output is correct
27 Correct 16 ms 74588 KB Output is correct
28 Correct 15 ms 74332 KB Output is correct
29 Correct 16 ms 74332 KB Output is correct
30 Correct 17 ms 74328 KB Output is correct
31 Correct 17 ms 74332 KB Output is correct
32 Correct 15 ms 74332 KB Output is correct
33 Correct 16 ms 74332 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 74332 KB Output is correct
2 Correct 15 ms 74332 KB Output is correct
3 Correct 17 ms 74332 KB Output is correct
4 Correct 15 ms 74332 KB Output is correct
5 Correct 15 ms 74332 KB Output is correct
6 Correct 18 ms 74328 KB Output is correct
7 Correct 15 ms 74332 KB Output is correct
8 Correct 15 ms 74492 KB Output is correct
9 Correct 17 ms 74332 KB Output is correct
10 Correct 16 ms 74332 KB Output is correct
11 Correct 15 ms 74332 KB Output is correct
12 Correct 15 ms 74332 KB Output is correct
13 Correct 15 ms 74424 KB Output is correct
14 Correct 15 ms 74332 KB Output is correct
15 Correct 15 ms 74332 KB Output is correct
16 Correct 15 ms 74332 KB Output is correct
17 Correct 15 ms 74332 KB Output is correct
18 Correct 17 ms 74328 KB Output is correct
19 Correct 15 ms 74332 KB Output is correct
20 Correct 16 ms 74332 KB Output is correct
21 Correct 17 ms 74332 KB Output is correct
22 Correct 15 ms 74268 KB Output is correct
23 Correct 19 ms 74440 KB Output is correct
24 Correct 15 ms 74328 KB Output is correct
25 Correct 16 ms 74328 KB Output is correct
26 Correct 15 ms 74332 KB Output is correct
27 Correct 16 ms 74588 KB Output is correct
28 Correct 15 ms 74332 KB Output is correct
29 Correct 16 ms 74332 KB Output is correct
30 Correct 17 ms 74328 KB Output is correct
31 Correct 17 ms 74332 KB Output is correct
32 Correct 15 ms 74332 KB Output is correct
33 Correct 16 ms 74332 KB Output is correct
34 Correct 18 ms 74584 KB Output is correct
35 Correct 98 ms 80468 KB Output is correct
36 Correct 118 ms 83024 KB Output is correct
37 Correct 117 ms 83280 KB Output is correct
38 Correct 129 ms 83024 KB Output is correct
39 Correct 17 ms 74584 KB Output is correct
40 Correct 19 ms 75036 KB Output is correct
41 Correct 19 ms 75100 KB Output is correct
42 Correct 17 ms 74588 KB Output is correct
43 Correct 18 ms 74808 KB Output is correct
44 Correct 18 ms 74844 KB Output is correct
45 Correct 17 ms 74588 KB Output is correct
46 Correct 18 ms 74588 KB Output is correct
47 Correct 19 ms 74796 KB Output is correct
48 Correct 18 ms 74844 KB Output is correct
49 Correct 24 ms 75612 KB Output is correct
50 Correct 148 ms 83408 KB Output is correct
51 Correct 21 ms 75096 KB Output is correct
52 Correct 107 ms 81388 KB Output is correct
53 Correct 24 ms 75608 KB Output is correct
54 Correct 113 ms 82480 KB Output is correct
55 Correct 21 ms 75100 KB Output is correct
56 Correct 21 ms 75100 KB Output is correct
57 Correct 19 ms 75096 KB Output is correct
58 Correct 20 ms 75052 KB Output is correct
59 Correct 22 ms 75100 KB Output is correct
60 Correct 92 ms 80088 KB Output is correct
61 Correct 20 ms 74844 KB Output is correct
62 Correct 117 ms 82768 KB Output is correct

Subtask #3
83.0 / 83.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 74332 KB Output is correct
2 Correct 15 ms 74332 KB Output is correct
3 Correct 17 ms 74332 KB Output is correct
4 Correct 15 ms 74332 KB Output is correct
5 Correct 15 ms 74332 KB Output is correct
6 Correct 18 ms 74328 KB Output is correct
7 Correct 15 ms 74332 KB Output is correct
8 Correct 15 ms 74492 KB Output is correct
9 Correct 17 ms 74332 KB Output is correct
10 Correct 16 ms 74332 KB Output is correct
11 Correct 15 ms 74332 KB Output is correct
12 Correct 15 ms 74332 KB Output is correct
13 Correct 15 ms 74424 KB Output is correct
14 Correct 15 ms 74332 KB Output is correct
15 Correct 15 ms 74332 KB Output is correct
16 Correct 15 ms 74332 KB Output is correct
17 Correct 15 ms 74332 KB Output is correct
18 Correct 17 ms 74328 KB Output is correct
19 Correct 15 ms 74332 KB Output is correct
20 Correct 16 ms 74332 KB Output is correct
21 Correct 17 ms 74332 KB Output is correct
22 Correct 15 ms 74268 KB Output is correct
23 Correct 19 ms 74440 KB Output is correct
24 Correct 15 ms 74328 KB Output is correct
25 Correct 16 ms 74328 KB Output is correct
26 Correct 15 ms 74332 KB Output is correct
27 Correct 16 ms 74588 KB Output is correct
28 Correct 15 ms 74332 KB Output is correct
29 Correct 16 ms 74332 KB Output is correct
30 Correct 17 ms 74328 KB Output is correct
31 Correct 17 ms 74332 KB Output is correct
32 Correct 15 ms 74332 KB Output is correct
33 Correct 16 ms 74332 KB Output is correct
34 Correct 18 ms 74584 KB Output is correct
35 Correct 98 ms 80468 KB Output is correct
36 Correct 118 ms 83024 KB Output is correct
37 Correct 117 ms 83280 KB Output is correct
38 Correct 129 ms 83024 KB Output is correct
39 Correct 17 ms 74584 KB Output is correct
40 Correct 19 ms 75036 KB Output is correct
41 Correct 19 ms 75100 KB Output is correct
42 Correct 17 ms 74588 KB Output is correct
43 Correct 18 ms 74808 KB Output is correct
44 Correct 18 ms 74844 KB Output is correct
45 Correct 17 ms 74588 KB Output is correct
46 Correct 18 ms 74588 KB Output is correct
47 Correct 19 ms 74796 KB Output is correct
48 Correct 18 ms 74844 KB Output is correct
49 Correct 24 ms 75612 KB Output is correct
50 Correct 148 ms 83408 KB Output is correct
51 Correct 21 ms 75096 KB Output is correct
52 Correct 107 ms 81388 KB Output is correct
53 Correct 24 ms 75608 KB Output is correct
54 Correct 113 ms 82480 KB Output is correct
55 Correct 21 ms 75100 KB Output is correct
56 Correct 21 ms 75100 KB Output is correct
57 Correct 19 ms 75096 KB Output is correct
58 Correct 20 ms 75052 KB Output is correct
59 Correct 22 ms 75100 KB Output is correct
60 Correct 92 ms 80088 KB Output is correct
61 Correct 20 ms 74844 KB Output is correct
62 Correct 117 ms 82768 KB Output is correct
63 Correct 547 ms 130908 KB Output is correct
64 Correct 517 ms 130960 KB Output is correct
65 Correct 526 ms 131200 KB Output is correct
66 Correct 183 ms 97216 KB Output is correct
67 Correct 384 ms 123984 KB Output is correct
68 Correct 173 ms 97064 KB Output is correct
69 Correct 320 ms 98132 KB Output is correct
70 Correct 196 ms 97104 KB Output is correct
71 Correct 215 ms 97104 KB Output is correct
72 Correct 377 ms 108116 KB Output is correct
73 Correct 368 ms 109756 KB Output is correct
74 Correct 950 ms 132200 KB Output is correct
75 Correct 472 ms 105044 KB Output is correct
76 Correct 667 ms 117060 KB Output is correct
77 Correct 680 ms 117448 KB Output is correct
78 Correct 227 ms 100808 KB Output is correct
79 Correct 375 ms 105204 KB Output is correct
80 Correct 184 ms 99668 KB Output is correct
81 Correct 326 ms 103248 KB Output is correct
82 Correct 730 ms 117936 KB Output is correct
83 Correct 699 ms 118092 KB Output is correct
84 Correct 545 ms 116452 KB Output is correct
85 Correct 530 ms 116548 KB Output is correct
86 Correct 328 ms 129928 KB Output is correct
87 Correct 327 ms 132276 KB Output is correct
88 Correct 407 ms 108924 KB Output is correct
89 Correct 692 ms 114992 KB Output is correct