Submission #25,755

2026-03-01 16:33:13

cpp17

Accepted 100/100

331ms

24132 KiB

#include <bits/stdc++.h>
using ll = long long;
using namespace std;

vector<bool> vis;
vector<vector<ll>> szom;

void dfs(ll node){
	vis[node] = true;
	for (ll x : szom[node]){
		if (!vis[x]){
			dfs(x);
		}
	}
}

int main() {
	ll n, m, q; cin >> n >> m >> q;
	vis.resize(n+m+1, false);
	szom.resize(n+m+1);
	while (q--){
		ll r, c; cin >> r >> c;
		szom[r].push_back(c+n);
		szom[c+n].push_back(r);
	}
	ll comp = 0;
	for (int i = 1; i < n+m+1; i++){
		if (!vis[i]) { 
			dfs(i);
			comp++;
		}
	}
	cout << comp-1;
}

	Sum	Test	Verdict	Time	Memory
0	0/0
		1	Accepted	1ms	316 KiB
		2	Accepted	1ms	508 KiB
		3	Accepted	1ms	316 KiB
1	10/10
		4	Accepted	1ms	316 KiB
		5	Accepted	1ms	316 KiB
		6	Accepted	1ms	316 KiB
		7	Accepted	1ms	316 KiB
		8	Accepted	1ms	384 KiB
		9	Accepted	1ms	316 KiB
		10	Accepted	1ms	508 KiB
		11	Accepted	1ms	320 KiB
		12	Accepted	1ms	332 KiB
		13	Accepted	1ms	316 KiB
		14	Accepted	1ms	316 KiB
		15	Accepted	1ms	316 KiB
		16	Accepted	1ms	316 KiB
		17	Accepted	1ms	316 KiB
		18	Accepted	1ms	316 KiB
		19	Accepted	1ms	316 KiB
2	8/8
		20	Accepted	1ms	512 KiB
		21	Accepted	1ms	344 KiB
		22	Accepted	1ms	316 KiB
		23	Accepted	1ms	316 KiB
		24	Accepted	1ms	316 KiB
		25	Accepted	1ms	316 KiB
		26	Accepted	1ms	316 KiB
3	9/9
		27	Accepted	1ms	316 KiB
		28	Accepted	1ms	316 KiB
		29	Accepted	1ms	316 KiB
		30	Accepted	1ms	316 KiB
		31	Accepted	1ms	316 KiB
4	8/8
		32	Accepted	1ms	316 KiB
		33	Accepted	1ms	316 KiB
		34	Accepted	1ms	316 KiB
		35	Accepted	1ms	316 KiB
		36	Accepted	1ms	316 KiB
		37	Accepted	1ms	536 KiB
		38	Accepted	1ms	316 KiB
5	20/20
		39	Accepted	1ms	316 KiB
		40	Accepted	1ms	316 KiB
		41	Accepted	1ms	380 KiB
		42	Accepted	1ms	316 KiB
		43	Accepted	1ms	316 KiB
		44	Accepted	1ms	508 KiB
		45	Accepted	1ms	404 KiB
		46	Accepted	1ms	316 KiB
		47	Accepted	1ms	316 KiB
		48	Accepted	1ms	508 KiB
		49	Accepted	1ms	316 KiB
		50	Accepted	2ms	316 KiB
		51	Accepted	1ms	316 KiB
		52	Accepted	1ms	508 KiB
		53	Accepted	1ms	316 KiB
		54	Accepted	1ms	500 KiB
		55	Accepted	1ms	316 KiB
		56	Accepted	1ms	316 KiB
		57	Accepted	1ms	316 KiB
		58	Accepted	1ms	316 KiB
		59	Accepted	1ms	316 KiB
		60	Accepted	1ms	316 KiB
		61	Accepted	1ms	316 KiB
		62	Accepted	1ms	316 KiB
		63	Accepted	1ms	316 KiB
		64	Accepted	1ms	316 KiB
		65	Accepted	1ms	316 KiB
		66	Accepted	1ms	316 KiB
		67	Accepted	1ms	508 KiB
6	10/10
		68	Accepted	1ms	316 KiB
		69	Accepted	1ms	316 KiB
		70	Accepted	1ms	316 KiB
		71	Accepted	1ms	316 KiB
		72	Accepted	1ms	316 KiB
		73	Accepted	1ms	316 KiB
		74	Accepted	1ms	316 KiB
		75	Accepted	6ms	652 KiB
		76	Accepted	1ms	408 KiB
		77	Accepted	1ms	316 KiB
		78	Accepted	1ms	316 KiB
		79	Accepted	1ms	316 KiB
		80	Accepted	1ms	508 KiB
		81	Accepted	1ms	500 KiB
		82	Accepted	1ms	316 KiB
		83	Accepted	1ms	368 KiB
		84	Accepted	1ms	316 KiB
		85	Accepted	1ms	316 KiB
		86	Accepted	1ms	508 KiB
		87	Accepted	1ms	316 KiB
		88	Accepted	1ms	316 KiB
		89	Accepted	1ms	508 KiB
7	10/10
		90	Accepted	2ms	316 KiB
		91	Accepted	17ms	1072 KiB
		92	Accepted	1ms	316 KiB
		93	Accepted	1ms	316 KiB
		94	Accepted	1ms	316 KiB
		95	Accepted	1ms	316 KiB
		96	Accepted	1ms	316 KiB
		97	Accepted	1ms	328 KiB
		98	Accepted	1ms	316 KiB
		99	Accepted	1ms	316 KiB
		100	Accepted	1ms	316 KiB
		101	Accepted	1ms	316 KiB
		102	Accepted	1ms	348 KiB
		103	Accepted	1ms	316 KiB
		104	Accepted	1ms	316 KiB
		105	Accepted	1ms	316 KiB
		106	Accepted	1ms	316 KiB
		107	Accepted	1ms	316 KiB
		108	Accepted	1ms	508 KiB
		109	Accepted	1ms	316 KiB
		110	Accepted	1ms	316 KiB
		111	Accepted	1ms	316 KiB
		112	Accepted	1ms	316 KiB
		113	Accepted	1ms	316 KiB
8	10/10
		114	Accepted	79ms	4304 KiB
		115	Accepted	35ms	2060 KiB
		116	Accepted	35ms	1956 KiB
		117	Accepted	10ms	1348 KiB
		118	Accepted	16ms	1332 KiB
		119	Accepted	16ms	1340 KiB
		120	Accepted	8ms	1076 KiB
		121	Accepted	8ms	1272 KiB
		122	Accepted	8ms	1156 KiB
		123	Accepted	8ms	1272 KiB
		124	Accepted	67ms	3128 KiB
		125	Accepted	67ms	3124 KiB
		126	Accepted	64ms	2996 KiB
		127	Accepted	68ms	3108 KiB
		128	Accepted	17ms	1776 KiB
		129	Accepted	7ms	836 KiB
		130	Accepted	7ms	820 KiB
		131	Accepted	1ms	564 KiB
		132	Accepted	1ms	564 KiB
		133	Accepted	2ms	820 KiB
		134	Accepted	2ms	1004 KiB
		135	Accepted	18ms	1772 KiB
		136	Accepted	9ms	1428 KiB
		137	Accepted	8ms	1324 KiB
		138	Accepted	9ms	1380 KiB
		139	Accepted	8ms	1596 KiB
9	15/15
		140	Accepted	331ms	18172 KiB
		141	Accepted	172ms	14684 KiB
		142	Accepted	13ms	9920 KiB
		143	Accepted	12ms	9780 KiB
		144	Accepted	12ms	9780 KiB
		145	Accepted	252ms	18140 KiB
		146	Accepted	105ms	8860 KiB
		147	Accepted	6ms	4916 KiB
		148	Accepted	6ms	4916 KiB
		149	Accepted	14ms	5428 KiB
		150	Accepted	14ms	5532 KiB
		151	Accepted	193ms	10292 KiB
		152	Accepted	172ms	15908 KiB
		153	Accepted	190ms	17060 KiB
		154	Accepted	217ms	17060 KiB
		155	Accepted	89ms	10920 KiB
		156	Accepted	181ms	13840 KiB
		157	Accepted	178ms	13840 KiB
		158	Accepted	180ms	13208 KiB
		159	Accepted	174ms	11160 KiB
		160	Accepted	127ms	11316 KiB
		161	Accepted	217ms	12336 KiB
		162	Accepted	101ms	6456 KiB
		163	Accepted	114ms	11316 KiB
		164	Accepted	259ms	15060 KiB
		165	Accepted	250ms	15156 KiB
		166	Accepted	181ms	23900 KiB
		167	Accepted	196ms	24132 KiB