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Submission #249540

# Submission time Handle Problem Language Result Execution time Memory
249540 2020-07-15T08:49:04 Z Vimmer Poklon (COCI17_poklon7) C++14
108 / 120
 1000 ms 135664 KB 
#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>

#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("-O3")
#pragma GCC optimize("Ofast")
//#pragma GCC optimize("fast-math")
//#pragma GCC optimize("no-stack-protector")

#define F first
#define S second
#define sz(x) int(x.size())
#define pb push_back
#define pf push_front
#define N 1000010
#define M ll(1e9 + 7)
#define inf 1e9 + 1e9

using namespace std;
//using namespace __gnu_pbds;

typedef long double ld;
typedef long long ll;
typedef unsigned long long ull;
typedef short int si;
typedef array <int, 6> a6;

//typedef tree <int, null_type, less_equal<int>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;

int L[N], R[N];

vector <char> tranc(int x)
{
    vector <char> gr; gr.clear();

    while (x > 0)
    {
        if (x % 2) gr.pb('1');
          else gr.pb('0');

        x /= 2;
    }

    reverse(gr.begin(), gr.end());

    return gr;
}

pair <int, int > dfs(int v)
{
    pair <int, int> l, r;

    if (L[v] < 0) l = dfs(abs(L[v])); else l = {0, L[v]};

    if (R[v] < 0) r = dfs(abs(R[v])); else r = {0, R[v]};

    vector <char> gl = tranc(l.S);

    vector <char> gr = tranc(r.S);

    if (sz(gl) + l.F < sz(gr) + r.F) {swap(gl, gr); swap(l, r);}

    if (sz(gl) + l.F != sz(gr) + r.F) {l.F++; return l;}

    for (int i = 0; i < min(sz(gr), sz(gl)); i++)
    {
        if (gl[i] == gr[i]) continue;

        if (gr[i] == '1') swap(l, r);

        break;
    }

    l.F++;

    return l;
}

int main()
{
    //freopen("input.txt", "r", stdin); freopen("output4.txt", "w", stdout);

    ios_base::sync_with_stdio(0); istream::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    int n;

    cin >> n;

    for (int i = 1; i <= n; i++)
    {
        int l, r;

        cin >> l >> r;

        if (l < 0) L[i] = abs(l); else L[i] = -l;

        if (r < 0) R[i] = abs(r); else R[i] = -r;
    }

    pair <int, int > gr = dfs(1);

    vector <char> pr = tranc(gr.S);

    for (int i = 0; i < gr.F; i++) pr.pb('0');

    for (auto it : pr) cout << it;
}

Subtask #1
108.0 / 120.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 11 ms 1024 KB Output is correct
12 Correct 14 ms 1024 KB Output is correct
13 Correct 55 ms 3960 KB Output is correct
14 Correct 109 ms 7928 KB Output is correct
15 Correct 105 ms 1144 KB Output is correct
16 Correct 363 ms 18936 KB Output is correct
17 Correct 868 ms 39288 KB Output is correct
18 Correct 853 ms 44916 KB Output is correct
19 Execution timed out 1087 ms 30200 KB Time limit exceeded
20 Execution timed out 1090 ms 135664 KB Time limit exceeded