oj.uz

답안 #249529

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
249529 2020-07-15T08:14:40 Z Vimmer Poklon (COCI17_poklon7) C++14
120 / 120
 893 ms 135604 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

# 결과 실행 시간 메모리 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 12 ms 1152 KB Output is correct
12 Correct 11 ms 896 KB Output is correct
13 Correct 46 ms 4344 KB Output is correct
14 Correct 89 ms 8568 KB Output is correct
15 Correct 85 ms 1272 KB Output is correct
16 Correct 299 ms 21244 KB Output is correct
17 Correct 711 ms 44316 KB Output is correct
18 Correct 721 ms 50552 KB Output is correct
19 Correct 873 ms 34564 KB Output is correct
20 Correct 893 ms 135604 KB Output is correct