답안 #856962

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
856962	2023-10-05T02:16:47 Z	wakandaaa	Marshmallow Molecules (CCO19_day2problem2)	C++17	25 / 25	81 ms	53752 KB

Main

#include <bits/stdc++.h>

using namespace std;

#define file ""

#define mp make_pair
#define fi first
#define se second
#define all(x) x.begin(), x.end()

#define getbit(x, i) (((x) >> (i)) & 1)
#define bit(x) (1LL << (x))
#define popcount __builtin_popcountll

mt19937_64 rd(chrono::steady_clock::now().time_since_epoch().count());
int rand(int l, int r) {
    return l + rd() % (r - l + 1);
}

const int N = 1e6 + 5;
const int mod = (int)1e9 + 7; // 998244353;
const int lg = 25; // lg + 1
const int oo = 1e9;
const long long ooo = 1e18;

template<class X, class Y> bool mini(X &a, Y b) {
    return a > b ? (a = b, true) : false;
}
template<class X, class Y> bool maxi(X &a, Y b) {
    return a < b ? (a = b, true) : false;
}
void add(int &a, int b) {
    a += b;
    if (a >= mod) a -= mod;
    if (a < 0) a += mod;
}

int n, m;
set<int> adj[N];

void unite(int u, int v) {
    if (adj[u].size() > adj[v].size()) swap(adj[u], adj[v]);
    for (int i : adj[u]) adj[v].insert(i);
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);

    // freopen(file".inp", "r", stdin);
    // freopen(file".out", "w", stdout);

    cin >> n >> m;
    for (int i = 1; i <= m; ++i) {
        int u, v;
        cin >> u >> v;
        if (u > v) swap(u, v);
        adj[u].insert(v);
    }

    long long ans = 0;

    for (int u = 1; u <= n; ++u) if (adj[u].size()) {        
        ans += adj[u].size();

        int v = *adj[u].begin();
        adj[u].erase(adj[u].begin());
        if (adj[u].size() > adj[v].size()) swap(adj[u], adj[v]);
        for (int x : adj[u]) adj[v].insert(x);

        adj[u].clear();
    }

    cout << ans << '\n';

    return 0;
}

/*

*/

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	11 ms	47524 KB	Output is correct
2	Correct	9 ms	47196 KB	Output is correct
3	Correct	11 ms	47452 KB	Output is correct
4	Correct	10 ms	47448 KB	Output is correct
5	Correct	10 ms	47452 KB	Output is correct
6	Correct	10 ms	47452 KB	Output is correct
7	Correct	10 ms	47452 KB	Output is correct
8	Correct	10 ms	47452 KB	Output is correct
9	Correct	9 ms	47384 KB	Output is correct
10	Correct	10 ms	47452 KB	Output is correct
11	Correct	10 ms	47532 KB	Output is correct
12	Correct	10 ms	47452 KB	Output is correct
13	Correct	11 ms	47588 KB	Output is correct
14	Correct	10 ms	47452 KB	Output is correct
15	Correct	9 ms	47196 KB	Output is correct

Subtask #2
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	11 ms	47524 KB	Output is correct
2	Correct	9 ms	47196 KB	Output is correct
3	Correct	11 ms	47452 KB	Output is correct
4	Correct	10 ms	47448 KB	Output is correct
5	Correct	10 ms	47452 KB	Output is correct
6	Correct	10 ms	47452 KB	Output is correct
7	Correct	10 ms	47452 KB	Output is correct
8	Correct	10 ms	47452 KB	Output is correct
9	Correct	9 ms	47384 KB	Output is correct
10	Correct	10 ms	47452 KB	Output is correct
11	Correct	10 ms	47532 KB	Output is correct
12	Correct	10 ms	47452 KB	Output is correct
13	Correct	11 ms	47588 KB	Output is correct
14	Correct	10 ms	47452 KB	Output is correct
15	Correct	9 ms	47196 KB	Output is correct
16	Correct	45 ms	53020 KB	Output is correct
17	Correct	49 ms	52816 KB	Output is correct
18	Correct	43 ms	52816 KB	Output is correct
19	Correct	43 ms	52884 KB	Output is correct
20	Correct	51 ms	53072 KB	Output is correct
21	Correct	11 ms	47452 KB	Output is correct
22	Correct	50 ms	52828 KB	Output is correct
23	Correct	46 ms	52828 KB	Output is correct
24	Correct	42 ms	52760 KB	Output is correct
25	Correct	42 ms	52820 KB	Output is correct
26	Correct	47 ms	53016 KB	Output is correct
27	Correct	11 ms	47704 KB	Output is correct

Subtask #3
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	56 ms	53116 KB	Output is correct
2	Correct	55 ms	53084 KB	Output is correct
3	Correct	55 ms	53244 KB	Output is correct
4	Correct	55 ms	53116 KB	Output is correct
5	Correct	54 ms	53072 KB	Output is correct
6	Correct	52 ms	53028 KB	Output is correct
7	Correct	54 ms	53112 KB	Output is correct
8	Correct	57 ms	53332 KB	Output is correct
9	Correct	53 ms	53252 KB	Output is correct
10	Correct	55 ms	53080 KB	Output is correct
11	Correct	55 ms	53072 KB	Output is correct
12	Correct	54 ms	53076 KB	Output is correct

Subtask #4
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	11 ms	47524 KB	Output is correct
2	Correct	9 ms	47196 KB	Output is correct
3	Correct	11 ms	47452 KB	Output is correct
4	Correct	10 ms	47448 KB	Output is correct
5	Correct	10 ms	47452 KB	Output is correct
6	Correct	10 ms	47452 KB	Output is correct
7	Correct	10 ms	47452 KB	Output is correct
8	Correct	10 ms	47452 KB	Output is correct
9	Correct	9 ms	47384 KB	Output is correct
10	Correct	10 ms	47452 KB	Output is correct
11	Correct	10 ms	47532 KB	Output is correct
12	Correct	10 ms	47452 KB	Output is correct
13	Correct	11 ms	47588 KB	Output is correct
14	Correct	10 ms	47452 KB	Output is correct
15	Correct	9 ms	47196 KB	Output is correct
16	Correct	45 ms	53020 KB	Output is correct
17	Correct	49 ms	52816 KB	Output is correct
18	Correct	43 ms	52816 KB	Output is correct
19	Correct	43 ms	52884 KB	Output is correct
20	Correct	51 ms	53072 KB	Output is correct
21	Correct	11 ms	47452 KB	Output is correct
22	Correct	50 ms	52828 KB	Output is correct
23	Correct	46 ms	52828 KB	Output is correct
24	Correct	42 ms	52760 KB	Output is correct
25	Correct	42 ms	52820 KB	Output is correct
26	Correct	47 ms	53016 KB	Output is correct
27	Correct	11 ms	47704 KB	Output is correct
28	Correct	56 ms	53116 KB	Output is correct
29	Correct	55 ms	53084 KB	Output is correct
30	Correct	55 ms	53244 KB	Output is correct
31	Correct	55 ms	53116 KB	Output is correct
32	Correct	54 ms	53072 KB	Output is correct
33	Correct	52 ms	53028 KB	Output is correct
34	Correct	54 ms	53112 KB	Output is correct
35	Correct	57 ms	53332 KB	Output is correct
36	Correct	53 ms	53252 KB	Output is correct
37	Correct	55 ms	53080 KB	Output is correct
38	Correct	55 ms	53072 KB	Output is correct
39	Correct	54 ms	53076 KB	Output is correct
40	Correct	81 ms	52864 KB	Output is correct
41	Correct	66 ms	53076 KB	Output is correct
42	Correct	80 ms	53080 KB	Output is correct
43	Correct	70 ms	53076 KB	Output is correct
44	Correct	62 ms	53072 KB	Output is correct
45	Correct	57 ms	53076 KB	Output is correct
46	Correct	46 ms	53084 KB	Output is correct
47	Correct	51 ms	53336 KB	Output is correct
48	Correct	42 ms	53084 KB	Output is correct
49	Correct	47 ms	53072 KB	Output is correct
50	Correct	62 ms	53120 KB	Output is correct
51	Correct	55 ms	53220 KB	Output is correct
52	Correct	64 ms	53080 KB	Output is correct
53	Correct	52 ms	53256 KB	Output is correct
54	Correct	53 ms	53180 KB	Output is correct
55	Correct	68 ms	53236 KB	Output is correct
56	Correct	53 ms	53752 KB	Output is correct
57	Correct	44 ms	53132 KB	Output is correct

답안 #856962

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 5.0 / 5.0

Subtask #3 5.0 / 5.0

Subtask #4 10.0 / 10.0

Subtask #1
5.0 / 5.0

Subtask #2
5.0 / 5.0

Subtask #3
5.0 / 5.0

Subtask #4
10.0 / 10.0