oj.uz

답안 #370707

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
370707 2021-02-24T13:46:52 Z TosakaUCW Poklon (COCI17_poklon7) C++17
120 / 120
 852 ms 135676 KB 
#include <bits/stdc++.h>

#define pb push_back
#define sz(x) int(x.size())

using namespace std;
 
#define N 1000010

int L[N], R[N];
 
void convert(vector<char> &res, int x)
{
	while (x > 0)
    {
        if (x % 2) res.pb('1');
        else res.pb('0');
        x /= 2;
    }
    reverse(res.begin(), res.end());
}
 
vector<char> dfs(int v)
{
    vector<char> a, b;
	if (L[v] < 0) a = dfs(abs(L[v])); else convert(a, L[v]);
    if (R[v] < 0) b = dfs(abs(R[v])); else convert(b, R[v]);
    if (sz(a) < sz(b))
        swap(a, b);
    if (sz(a) != sz(b))
		{ a.pb('0'); return a; }
    for (int i = 0; i < sz(a); i++)
    {
		if (a[i] == b[i])
			continue;
        if (b[i] == '1')
            swap(a, b);
        break;
    }
    a.pb('0'); return a;
}
 
int main()
{
	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> ans = dfs(1);
    for (auto x : ans)
        cout << x;
}

Subtask #1
120.0 / 120.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 8 ms 1132 KB Output is correct
12 Correct 10 ms 1004 KB Output is correct
13 Correct 40 ms 4332 KB Output is correct
14 Correct 78 ms 8684 KB Output is correct
15 Correct 80 ms 1260 KB Output is correct
16 Correct 265 ms 21484 KB Output is correct
17 Correct 621 ms 44608 KB Output is correct
18 Correct 628 ms 50896 KB Output is correct
19 Correct 827 ms 34780 KB Output is correct
20 Correct 852 ms 135676 KB Output is correct