답안 #826036

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
826036	2023-08-15T10:02:59 Z	AlphaMale06	Monthly railway pass (LMIO18_menesinis_bilietas)	C++14	100 / 100	451 ms	74392 KB

menesinis_bilietas

#include <bits/stdc++.h>

using namespace std;

#define F first
#define S second
#define mp make_pair
#define pb push_back

const int N = 500005;
int p[N];
int sz[N];
set<int> adj[N];
vector<pair<int, int>> paid;

void make(int v){p[v]=v; sz[v]=1;}

int rep(int v){
    if(p[v]==v)return v;
    return p[v]=rep(p[v]);
}

void unite(int v, int u){
    v=rep(v);
    u=rep(u);
    if(u==v)return;
    if(sz[u]>sz[v]){
        swap(u, v);
    }
    p[u]=v;
    sz[v]+=sz[u];
}



int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n, m;
    cin >> n >> m;
    for(int i=1; i<=n; i++){
        make(i);
    }
    for(int i=0; i< m; i++){
        int x, y;
        char a;
        cin >> x >> y >> a;
        if(a=='T'){
            unite(x, y);
        }
        else paid.pb(mp(x, y));
    }
    for(int i=0; i< paid.size(); i++){
        int x=paid[i].F;
        int y=paid[i].S;
        x=rep(x);
        y=rep(y);
        if(x==y)continue;
        adj[x].insert(y);
        adj[y].insert(x);
    }
    int ans=0;
    int cnt=0;
    for(int i=1; i<=n; i++){
        if(p[i]==i)cnt++;
    }
    for(int i=1; i<=n; i++){
        if(p[i]==i){
            if(adj[i].size()==cnt-1)ans+=sz[i];
        }
    }
    cout << ans << '\n';
}

Compilation message

menesinis_bilietas.cpp: In function 'int main()':
menesinis_bilietas.cpp:54:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |     for(int i=0; i< paid.size(); i++){
      |                  ~^~~~~~~~~~~~~
menesinis_bilietas.cpp:70:29: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   70 |             if(adj[i].size()==cnt-1)ans+=sz[i];
      |                ~~~~~~~~~~~~~^~~~~~~

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	89 ms	29456 KB	Output is correct
2	Correct	12 ms	23884 KB	Output is correct
3	Correct	11 ms	23764 KB	Output is correct
4	Correct	15 ms	27396 KB	Output is correct
5	Correct	13 ms	23892 KB	Output is correct
6	Correct	37 ms	26168 KB	Output is correct

Subtask #2
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	15 ms	27396 KB	Output is correct
2	Correct	13 ms	23892 KB	Output is correct
3	Correct	12 ms	23764 KB	Output is correct
4	Correct	12 ms	23892 KB	Output is correct
5	Correct	16 ms	24588 KB	Output is correct
6	Correct	438 ms	61952 KB	Output is correct
7	Correct	451 ms	74392 KB	Output is correct
8	Correct	18 ms	25556 KB	Output is correct
9	Correct	29 ms	27028 KB	Output is correct

Subtask #3
30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	12 ms	23884 KB	Output is correct
2	Correct	11 ms	23764 KB	Output is correct
3	Correct	12 ms	23764 KB	Output is correct
4	Correct	12 ms	23892 KB	Output is correct
5	Correct	16 ms	24588 KB	Output is correct
6	Correct	12 ms	23812 KB	Output is correct
7	Correct	12 ms	23768 KB	Output is correct
8	Correct	12 ms	23892 KB	Output is correct
9	Correct	13 ms	23952 KB	Output is correct
10	Correct	14 ms	24020 KB	Output is correct
11	Correct	14 ms	24124 KB	Output is correct
12	Correct	12 ms	23764 KB	Output is correct
13	Correct	12 ms	23812 KB	Output is correct
14	Correct	14 ms	24192 KB	Output is correct
15	Correct	11 ms	23764 KB	Output is correct
16	Correct	12 ms	23768 KB	Output is correct
17	Correct	12 ms	23764 KB	Output is correct
18	Correct	12 ms	23920 KB	Output is correct
19	Correct	12 ms	23832 KB	Output is correct
20	Correct	12 ms	23892 KB	Output is correct

Subtask #4
35.0 / 35.0

#	결과	실행 시간	메모리	Grader output
1	Correct	12 ms	23812 KB	Output is correct
2	Correct	12 ms	23768 KB	Output is correct
3	Correct	12 ms	23892 KB	Output is correct
4	Correct	13 ms	23952 KB	Output is correct
5	Correct	14 ms	24020 KB	Output is correct
6	Correct	14 ms	24124 KB	Output is correct
7	Correct	12 ms	23764 KB	Output is correct
8	Correct	12 ms	23812 KB	Output is correct
9	Correct	14 ms	24192 KB	Output is correct
10	Correct	11 ms	23764 KB	Output is correct
11	Correct	12 ms	23768 KB	Output is correct
12	Correct	12 ms	23764 KB	Output is correct
13	Correct	12 ms	23920 KB	Output is correct
14	Correct	12 ms	23832 KB	Output is correct
15	Correct	12 ms	23892 KB	Output is correct
16	Correct	12 ms	23884 KB	Output is correct
17	Correct	11 ms	23764 KB	Output is correct
18	Correct	12 ms	23764 KB	Output is correct
19	Correct	12 ms	23892 KB	Output is correct
20	Correct	16 ms	24588 KB	Output is correct
21	Correct	13 ms	23892 KB	Output is correct
22	Correct	18 ms	25556 KB	Output is correct
23	Correct	29 ms	27028 KB	Output is correct
24	Correct	37 ms	26168 KB	Output is correct
25	Correct	17 ms	24456 KB	Output is correct
26	Correct	93 ms	31480 KB	Output is correct
27	Correct	42 ms	27452 KB	Output is correct
28	Correct	128 ms	38720 KB	Output is correct
29	Correct	39 ms	26404 KB	Output is correct
30	Correct	95 ms	36584 KB	Output is correct

Subtask #5
19.0 / 19.0

#	결과	실행 시간	메모리	Grader output
1	Correct	12 ms	23812 KB	Output is correct
2	Correct	12 ms	23768 KB	Output is correct
3	Correct	12 ms	23892 KB	Output is correct
4	Correct	13 ms	23952 KB	Output is correct
5	Correct	14 ms	24020 KB	Output is correct
6	Correct	14 ms	24124 KB	Output is correct
7	Correct	12 ms	23764 KB	Output is correct
8	Correct	12 ms	23812 KB	Output is correct
9	Correct	14 ms	24192 KB	Output is correct
10	Correct	11 ms	23764 KB	Output is correct
11	Correct	12 ms	23768 KB	Output is correct
12	Correct	12 ms	23764 KB	Output is correct
13	Correct	12 ms	23920 KB	Output is correct
14	Correct	12 ms	23832 KB	Output is correct
15	Correct	12 ms	23892 KB	Output is correct
16	Correct	17 ms	24456 KB	Output is correct
17	Correct	93 ms	31480 KB	Output is correct
18	Correct	42 ms	27452 KB	Output is correct
19	Correct	128 ms	38720 KB	Output is correct
20	Correct	39 ms	26404 KB	Output is correct
21	Correct	95 ms	36584 KB	Output is correct
22	Correct	89 ms	29456 KB	Output is correct
23	Correct	12 ms	23884 KB	Output is correct
24	Correct	11 ms	23764 KB	Output is correct
25	Correct	15 ms	27396 KB	Output is correct
26	Correct	12 ms	23764 KB	Output is correct
27	Correct	12 ms	23892 KB	Output is correct
28	Correct	16 ms	24588 KB	Output is correct
29	Correct	13 ms	23892 KB	Output is correct
30	Correct	438 ms	61952 KB	Output is correct
31	Correct	451 ms	74392 KB	Output is correct
32	Correct	18 ms	25556 KB	Output is correct
33	Correct	29 ms	27028 KB	Output is correct
34	Correct	37 ms	26168 KB	Output is correct
35	Correct	31 ms	26772 KB	Output is correct
36	Correct	147 ms	37692 KB	Output is correct
37	Correct	49 ms	28500 KB	Output is correct

답안 #826036

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 6.0 / 6.0

Subtask #3 30.0 / 30.0

Subtask #4 35.0 / 35.0

Subtask #5 19.0 / 19.0

Subtask #1
10.0 / 10.0

Subtask #2
6.0 / 6.0

Subtask #3
30.0 / 30.0

Subtask #4
35.0 / 35.0

Subtask #5
19.0 / 19.0