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Submission #370670

# Submission time Handle Problem Language Result Execution time Memory
370670 2021-02-24T13:13:45 Z TosakaUCW Poklon (COCI17_poklon7) C++17
96 / 120
 1000 ms 165520 KB 
#include <stdio.h>
#include <algorithm>
#include <vector>

int read(int x = 0, int f = 0, char ch = getchar())
{
    while ('0' > ch or ch > '9')
        f = ch == '-', ch = getchar();
    while ('0' <= ch and ch <= '9')
        x = x * 10 + (ch ^ 48), ch = getchar();
    return f ? -x : x;
}

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()
{
    n = read();
    for (int i = 1; i <= n; i++)
        L[i] = read(), R[i] = read();
    std::vector<char> ans = dfs(1);
    for (auto x : ans)
        printf("%c", x);
    return 0;
}

Compilation message

poklon.cpp: In function 'std::vector<char> dfs(int)':
poklon.cpp:41:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |     for (int i = 0; i < a.size(); i++)
      |                     ~~^~~~~~~~~~

Subtask #1
96.0 / 120.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 0 ms 364 KB Output is correct
6 Correct 0 ms 364 KB Output is correct
7 Correct 0 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 1260 KB Output is correct
12 Correct 10 ms 1004 KB Output is correct
13 Correct 61 ms 5100 KB Output is correct
14 Correct 181 ms 10220 KB Output is correct
15 Correct 52 ms 1160 KB Output is correct
16 Correct 865 ms 25088 KB Output is correct
17 Execution timed out 1083 ms 51692 KB Time limit exceeded
18 Execution timed out 1093 ms 59372 KB Time limit exceeded
19 Execution timed out 1098 ms 39660 KB Time limit exceeded
20 Execution timed out 1058 ms 165520 KB Time limit exceeded