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Submission #249532

# Submission time Handle Problem Language Result Execution time Memory
249532 2020-07-15T08:21:24 Z Vimmer Poklon (COCI17_poklon7) C++14
120 / 120
 883 ms 135908 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];

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

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

        x /= 2;
    }

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

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

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

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

    if (sz(l) < sz(r)) swap(l, r);

    if (sz(l) != sz(r)) {l.pb('0'); return l;}

    for (int i = 0; i < sz(l); i++)
    {
        if (l[i] == r[i]) continue;

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

        break;
    }

    l.pb('0');

    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;
    }

    vector <char> gr = dfs(1);

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

Subtask #1
120.0 / 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 1 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 10 ms 1280 KB Output is correct
12 Correct 11 ms 1152 KB Output is correct
13 Correct 46 ms 4856 KB Output is correct
14 Correct 87 ms 9208 KB Output is correct
15 Correct 83 ms 1656 KB Output is correct
16 Correct 293 ms 21880 KB Output is correct
17 Correct 686 ms 45496 KB Output is correct
18 Correct 701 ms 51968 KB Output is correct
19 Correct 859 ms 35064 KB Output is correct
20 Correct 883 ms 135908 KB Output is correct