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Submission #249515

# Submission time Handle Problem Language Result Execution time Memory
249515 2020-07-15T07:48:03 Z Vimmer Poklon (COCI17_poklon7) C++14
120 / 120
 914 ms 207936 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;

bool mk[N][2];

pair <ll, ll> val[N];

vector <char> tranc(ll x)
{
    vector <char> ans; ans.clear();

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

        x /= 2;
    }

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

    return ans;
}

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

    if (mk[v][0]) l = dfs(val[v].F); else l = tranc(val[v].F);

    if (mk[v][1]) r = dfs(val[v].S); else r = tranc(val[v].S);

    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);

    ll n;

    cin >> n;

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

        cin >> l >> r;

        if (l < 0) val[i].F = abs(l); else {mk[i][0] = 1; val[i].F = l;}

        if (r < 0) val[i].S = abs(r); else {mk[i][1] = 1; val[i].S = 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 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 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 9 ms 1408 KB Output is correct
12 Correct 12 ms 1280 KB Output is correct
13 Correct 46 ms 6392 KB Output is correct
14 Correct 90 ms 12920 KB Output is correct
15 Correct 86 ms 2040 KB Output is correct
16 Correct 298 ms 32576 KB Output is correct
17 Correct 714 ms 68088 KB Output is correct
18 Correct 705 ms 77048 KB Output is correct
19 Correct 886 ms 55288 KB Output is correct
20 Correct 914 ms 207936 KB Output is correct