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Submission #432702

# Submission time Handle Problem Language Result Execution time Memory
432702 2021-06-18T12:33:33 Z TryMax Stations (IOI20_stations) C++17
0 / 100
 10 ms 5156 KB 
#include "stations.h"
#include <bits/stdc++.h>
#ifdef LOCAL
    #include "stub.cpp"
#endif // LOCAL

#define f first
#define s second
#define pb push_back

using namespace std;

const int N = 2e5 + 10;

int sz[N], p[N], timer;
vector<int> a[N];

int cypher(int a, int b){
    return a * 1000 + (b - 1);
}

pair<int, int> decyper(int num){
    return {num / 1000, num % 1000 + 1};
}

void dfs(int u, int pr){
    sz[u] = 1;
    p[u] = timer++;
    for(auto v : a[u])
        if(pr != v){
//            dfs(v, u);
            sz[u] += sz[v];
        }
}

vector<int> label(int n, int k, vector<int> u, vector<int> v) {
    vector<int> lb;
    lb.resize(n);
    for(int i = 0; i < n - 1; ++i){
        a[u[i]].pb(v[i]);
        a[v[i]].pb(u[i]);
    }
    dfs(0, -1);
    for(int i = 0; i < n; ++i)
        lb[i] = cypher(p[i], sz[i]);
    return lb;
}

int find_next_station(int s, int t, vector<int> c) {
//    pair<int, int> s1 = decyper(s);
//    pair<int, int> t1 = decyper(t);
//    int pr = 0;
//    vector<pair<int, int>> p;
//    for(auto v : c){
//        pair<int, int> c1 = decyper(v);
//        if(c1.f == s1.f - 1)
//            pr = v;
//        p.pb(c1);
//    }
//    sort(p.begin(), p.end());
////    cout << s1.f << " " << s1.s << endl;
////    cout << t1.f << " " << t1.s << endl;
//    if(t1.f < s1.f || t1.f >= s1.f + s1.s)
//        return pr;
////    cout << 1 << endl;
//    for(int i = p.size() - 1; i >= 0; --i)
//        if(t1.f >= p[i].f)
//            return cypher(p[i].f, p[i].s);
    exit(1);
//    return cypher(p[0].f, p[0].s);
}
/*
1
5 1000000
0 1
1 2
1 3
2 4
2
2 0 1
1 3 3

9
1
3

*/

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 6 ms 5112 KB Invalid labels (values out of range). scenario=0, k=1000, vertex=1, label=-1
2 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 10 ms 5156 KB Invalid labels (values out of range). scenario=0, k=1000, vertex=1, label=-1
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 7 ms 5112 KB Invalid labels (values out of range). scenario=0, k=1000000, vertex=1, label=-1
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 4972 KB Invalid labels (values out of range). scenario=0, k=1000000000, vertex=1, label=-1
2 Halted 0 ms 0 KB -

Subtask #5
0 / 61.0

# Verdict Execution time Memory Grader output
1 Incorrect 6 ms 5112 KB Invalid labels (values out of range). scenario=0, k=1000000000, vertex=1, label=-1
2 Halted 0 ms 0 KB -