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Submission #498213

# Submission time Handle Problem Language Result Execution time Memory
498213 2021-12-24T15:38:56 Z Kipras Monthly railway pass (LMIO18_menesinis_bilietas) C++14
100 / 100
 936 ms 63716 KB 
#include <bits/stdc++.h>

using namespace std;

const int maxN = 1e5*5+1;

int n, m;
vector<pair<bool, int>> adj[maxN];
int par[maxN];
int s[maxN];
vector<int> routes[maxN];
bool checkedContainer[maxN];

int find(int a){
    if(par[a]==a)return a;
    return par[a]=find(par[a]);
}

void unite(int a, int b){
    a = find(a), b = find(b);
    if(a==b)return;
    par[b]=a;
    s[a]+=s[b];
}

bool same(int a, int b){
    return find(a)==find(b);
}

int main()
{

    ios_base::sync_with_stdio(0);cin.tie(nullptr);

    cin>>n>>m;

    for(int i = 0; i < m; i++){
        int a, b;
        char t;
        bool type;
        cin>>a>>b>>t;
        if(t=='A')type=0;
        else type=1;
        adj[a].push_back({type, b});
        adj[b].push_back({type, a});
    }

    for(int i = 0; i < maxN; i++)par[i]=i;
    for(int i = 0; i < maxN; i++)s[i]=1;

    for(int i = 1; i <= n; i++){
        for(auto x : adj[i]){
            if(x.first==0){

            }else{
                unite(x.second, i);
            }
        }
    }



    for(int i = 1; i <= n; i++){
        for(auto x : adj[i]){
            if(x.first==0){
                routes[find(i)].push_back(find(x.second));
                routes[find(x.second)].push_back(find(i));
            }else{

            }
        }
    }

    int ans=0;

    bool checked[maxN]={0};

    for(int i = 1; i <= n; i++){
        if(checkedContainer[find(i)])continue;
        int ss=s[find(i)];
        vector<int> used;
        for(auto x : routes[find(i)]){
            if(!same(i, x)&&!checked[find(x)]){
                ss+=s[find(x)];
                checked[find(x)]=1;
                used.push_back(find(x));
            }
        }
        for(auto x : used){
            checked[x]=0;
        }
        if(ss==n){
            ans+=s[find(i)];
            checkedContainer[find(i)]=true;
        }
    }

    cout<<ans;


    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 362 ms 43172 KB Output is correct
2 Correct 17 ms 28260 KB Output is correct
3 Correct 18 ms 28236 KB Output is correct
4 Correct 24 ms 28112 KB Output is correct
5 Correct 16 ms 28196 KB Output is correct
6 Correct 67 ms 32856 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 28112 KB Output is correct
2 Correct 16 ms 28196 KB Output is correct
3 Correct 15 ms 28200 KB Output is correct
4 Correct 16 ms 28244 KB Output is correct
5 Correct 19 ms 28492 KB Output is correct
6 Correct 150 ms 42204 KB Output is correct
7 Correct 429 ms 63716 KB Output is correct
8 Correct 24 ms 29516 KB Output is correct
9 Correct 31 ms 29956 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 28260 KB Output is correct
2 Correct 18 ms 28236 KB Output is correct
3 Correct 15 ms 28200 KB Output is correct
4 Correct 16 ms 28244 KB Output is correct
5 Correct 19 ms 28492 KB Output is correct
6 Correct 15 ms 28096 KB Output is correct
7 Correct 15 ms 28200 KB Output is correct
8 Correct 17 ms 28364 KB Output is correct
9 Correct 16 ms 28452 KB Output is correct
10 Correct 20 ms 28704 KB Output is correct
11 Correct 18 ms 28392 KB Output is correct
12 Correct 17 ms 28108 KB Output is correct
13 Correct 16 ms 28108 KB Output is correct
14 Correct 19 ms 28788 KB Output is correct
15 Correct 17 ms 28192 KB Output is correct
16 Correct 19 ms 28304 KB Output is correct
17 Correct 19 ms 28108 KB Output is correct
18 Correct 15 ms 28236 KB Output is correct
19 Correct 20 ms 28236 KB Output is correct
20 Correct 17 ms 28236 KB Output is correct

Subtask #4
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 28096 KB Output is correct
2 Correct 15 ms 28200 KB Output is correct
3 Correct 17 ms 28364 KB Output is correct
4 Correct 16 ms 28452 KB Output is correct
5 Correct 20 ms 28704 KB Output is correct
6 Correct 18 ms 28392 KB Output is correct
7 Correct 17 ms 28108 KB Output is correct
8 Correct 16 ms 28108 KB Output is correct
9 Correct 19 ms 28788 KB Output is correct
10 Correct 17 ms 28192 KB Output is correct
11 Correct 19 ms 28304 KB Output is correct
12 Correct 19 ms 28108 KB Output is correct
13 Correct 15 ms 28236 KB Output is correct
14 Correct 20 ms 28236 KB Output is correct
15 Correct 17 ms 28236 KB Output is correct
16 Correct 17 ms 28260 KB Output is correct
17 Correct 18 ms 28236 KB Output is correct
18 Correct 15 ms 28200 KB Output is correct
19 Correct 16 ms 28244 KB Output is correct
20 Correct 19 ms 28492 KB Output is correct
21 Correct 16 ms 28196 KB Output is correct
22 Correct 24 ms 29516 KB Output is correct
23 Correct 31 ms 29956 KB Output is correct
24 Correct 67 ms 32856 KB Output is correct
25 Correct 23 ms 29772 KB Output is correct
26 Correct 281 ms 45572 KB Output is correct
27 Correct 58 ms 35304 KB Output is correct
28 Correct 74 ms 37960 KB Output is correct
29 Correct 42 ms 33816 KB Output is correct
30 Correct 158 ms 36444 KB Output is correct

Subtask #5
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 28096 KB Output is correct
2 Correct 15 ms 28200 KB Output is correct
3 Correct 17 ms 28364 KB Output is correct
4 Correct 16 ms 28452 KB Output is correct
5 Correct 20 ms 28704 KB Output is correct
6 Correct 18 ms 28392 KB Output is correct
7 Correct 17 ms 28108 KB Output is correct
8 Correct 16 ms 28108 KB Output is correct
9 Correct 19 ms 28788 KB Output is correct
10 Correct 17 ms 28192 KB Output is correct
11 Correct 19 ms 28304 KB Output is correct
12 Correct 19 ms 28108 KB Output is correct
13 Correct 15 ms 28236 KB Output is correct
14 Correct 20 ms 28236 KB Output is correct
15 Correct 17 ms 28236 KB Output is correct
16 Correct 23 ms 29772 KB Output is correct
17 Correct 281 ms 45572 KB Output is correct
18 Correct 58 ms 35304 KB Output is correct
19 Correct 74 ms 37960 KB Output is correct
20 Correct 42 ms 33816 KB Output is correct
21 Correct 158 ms 36444 KB Output is correct
22 Correct 362 ms 43172 KB Output is correct
23 Correct 17 ms 28260 KB Output is correct
24 Correct 18 ms 28236 KB Output is correct
25 Correct 24 ms 28112 KB Output is correct
26 Correct 15 ms 28200 KB Output is correct
27 Correct 16 ms 28244 KB Output is correct
28 Correct 19 ms 28492 KB Output is correct
29 Correct 16 ms 28196 KB Output is correct
30 Correct 150 ms 42204 KB Output is correct
31 Correct 429 ms 63716 KB Output is correct
32 Correct 24 ms 29516 KB Output is correct
33 Correct 31 ms 29956 KB Output is correct
34 Correct 67 ms 32856 KB Output is correct
35 Correct 83 ms 30988 KB Output is correct
36 Correct 936 ms 47868 KB Output is correct
37 Correct 215 ms 37704 KB Output is correct