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Submission #921046

# Submission time Handle Problem Language Result Execution time Memory
921046 2024-02-03T09:07:23 Z zhehan Monthly railway pass (LMIO18_menesinis_bilietas) C++14
16 / 100
 1628 ms 194756 KB 
#include <bits/stdc++.h>
 
using namespace std;

#define int long long
 
int parent[500000];
 
int f(int a){
    if(parent[a]==a){
        return a;
    }
    return parent[a]=f(parent[a]);
}
 
void u(int a,int b){
    parent[f(a)]=f(b);
}
 
signed main()
{
    int n,m;
    cin>>n>>m;
    for(int i{1};i<n+1;++i){
        parent[i]=i;
    }
    map<int,vector<int>> ma;
    for(int i{};i<m;++i){
        int a,b;
        char c;
        cin>>a>>b>>c;
        if(c=='T'){
            u(a,b);
        }else{
            ma[a].push_back(b);
            ma[b].push_back(a);
        }
    }
    map<int,set<int>> mf;
    map<int,int> cc;
    for(int i{1};i<n+1;++i){
        cc[f(i)]++;
        mf[f(i)].insert(-1);
        for(auto e:ma[i]){
            mf[f(i)].insert(f(e));
        }
    }
    int counter=0;
    for(auto e:mf){
        if(mf.size()==e.second.size()){
            counter+=cc[e.first];
        }
    }
    cout<<counter;
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 339 ms 26036 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 600 KB Output is correct
4 Correct 411 ms 136440 KB Output is correct
5 Correct 9 ms 3928 KB Output is correct
6 Correct 81 ms 992 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 411 ms 136440 KB Output is correct
2 Correct 9 ms 3928 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 8 ms 1628 KB Output is correct
6 Correct 557 ms 58652 KB Output is correct
7 Correct 1628 ms 194756 KB Output is correct
8 Correct 23 ms 7636 KB Output is correct
9 Correct 35 ms 9300 KB Output is correct

Subtask #3
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 600 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 8 ms 1628 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 2 ms 348 KB Output is correct
9 Correct 3 ms 604 KB Output is correct
10 Incorrect 6 ms 604 KB Output isn't correct
11 Halted 0 ms 0 KB -

Subtask #4
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 2 ms 348 KB Output is correct
4 Correct 3 ms 604 KB Output is correct
5 Incorrect 6 ms 604 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #5
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 2 ms 348 KB Output is correct
4 Correct 3 ms 604 KB Output is correct
5 Incorrect 6 ms 604 KB Output isn't correct
6 Halted 0 ms 0 KB -