oj.uz

Submission #249534

# Submission time Handle Problem Language Result Execution time Memory
249534 2020-07-15T08:23:07 Z Vimmer Poklon (COCI17_poklon7) C++14
120 / 120
 966 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];

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[v] = abs(L[v]); l = dfs(L[v]);} else tranc(l, L[v]);

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

    int v = 1;

    vector <char> gr = dfs(v);

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

Subtask #1
120.0 / 120.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 1 ms 384 KB Output is correct
11 Correct 9 ms 1152 KB Output is correct
12 Correct 13 ms 896 KB Output is correct
13 Correct 52 ms 4340 KB Output is correct
14 Correct 93 ms 8568 KB Output is correct
15 Correct 94 ms 1144 KB Output is correct
16 Correct 318 ms 21352 KB Output is correct
17 Correct 731 ms 44368 KB Output is correct
18 Correct 763 ms 50588 KB Output is correct
19 Correct 920 ms 34552 KB Output is correct
20 Correct 966 ms 135664 KB Output is correct