oj.uz

Submission #370679

# Submission time Handle Problem Language Result Execution time Memory
370679 2021-02-24T13:23:37 Z TosakaUCW Poklon (COCI17_poklon7) C++17
96 / 120
 1000 ms 166076 KB 
#include <stdio.h>
#include <algorithm>
#include <vector>
#include <iostream>

const int N = 1e6 + 5;

int n;
int L[N], R[N];

void convert(std::vector<char> &res, int x)
{
    for (; x; x /= 2)
        res.push_back(x % 2 ? '1' : '0');
    std::reverse(res.begin(), res.end());
}

std::vector<char> dfs(int v)
{
    std::vector<char> a, b;
	if (L[v] < 0)
		a = dfs(-L[v]);
	else
		convert(a, L[v]);
	if (R[v] < 0)
		b = dfs(-R[v]);
	else
		convert(b, R[v]);
    if (a.size() < b.size())
        swap(a, b);
    if (a.size() ^ b.size())
        return a.push_back('0'), a;
    for (int i = 0; i < a.size(); i++)
        if (a[i] ^ b[i])
        {
            if (b[i] == '1')
                std::swap(a, b);
            break;
        }
    return a.push_back('0'), a;
}

int main()
{
	std::ios_base::sync_with_stdio(0); 
	std::istream::sync_with_stdio(0); 
	std::cin.tie(0); std::cout.tie(0);
    std::cin >> n;
    for (int i = 1; i <= n; i++)
    {
		std::cin >> L[i] >> R[i];
		L[i] = -L[i], R[i] = -R[i];
	}
    std::vector<char> ans = dfs(1);
    for (auto x : ans)
        std::cout << x;
    return 0;
}

Compilation message

poklon.cpp: In function 'std::vector<char> dfs(int)':
poklon.cpp:33:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |     for (int i = 0; i < a.size(); i++)
      |                     ~~^~~~~~~~~~

Subtask #1
96.0 / 120.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 9 ms 1260 KB Output is correct
12 Correct 10 ms 1132 KB Output is correct
13 Correct 66 ms 5100 KB Output is correct
14 Correct 229 ms 10348 KB Output is correct
15 Correct 67 ms 1132 KB Output is correct
16 Correct 912 ms 25196 KB Output is correct
17 Execution timed out 1097 ms 51948 KB Time limit exceeded
18 Execution timed out 1087 ms 59348 KB Time limit exceeded
19 Execution timed out 1101 ms 39532 KB Time limit exceeded
20 Execution timed out 1106 ms 166076 KB Time limit exceeded