Submission #387286

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
387286	2021-04-08 08:41:05	cheissmart	Making Friends on Joitter is Fun (JOI20_joitter2)	C++14	100 / 100	1750 ms	102280 KiB

joitter2

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#include <bits/stdc++.h>
#define F first
#define S second
#define PB push_back
#define MP make_pair
#define EB emplace_back
#define V vector
#define ALL(v) (v).begin(), (v).end()
#define debug(x) cerr << "LINE(" << __LINE__ << ") ->" << #x << " is " << x << endl
using namespace std;
typedef long long ll;
typedef pair<int, int> pi;
typedef V<int> vi;
const int INF = 1e9 + 7, N = 1e5 + 7;
unordered_set<int> G[N], rG[N], ch[N];
int p[N], sz[N];
queue<pi> q;
ll ans = 0;
int find(int u) {
    return p[u] == u ? u : p[u] = find(p[u]);
}
void add_edge(int u, int v) {
    G[u].insert(v);
    rG[v].insert(u);
 
 
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• Subtask 1: 1 / 1
• Subtask 2: 16 / 16
• Subtask 3: 83 / 83