제출 #241022

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
241022		SamAnd	Paralelogrami (COCI17_paralelogrami)	C++17	0 / 140	5 ms	384 KiB

paralelogrami

#include <bits/stdc++.h>
using namespace std;
#define m_p make_pair
#define all(x) (x).begin(),(x).end()
#define sz(x) ((int)(x).size())
#define fi first
#define se second
typedef long long ll;
mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());
mt19937 rnf(2106);
const int N = 1000006;

int n;
int l[N], r[N];

int d[N];

void dfs(int x)
{
    if (l[x] > 0)
    {
        d[l[x]] = d[x] + 1;
        dfs(l[x]);
    }
    if (r[x] > 0)
    {
        d[r[x]] = d[x] + 1;
        dfs(r[x]);
    }
}

void solv()
{
    scanf("%d", &n);
    for (int i = 1; i <= n; ++i)
    {
        scanf("%d%d", &l[i], &r[i]);
    }
    dfs(1);
    int maxd = 0;
    for (int i = 1; i <= n; ++i)
        maxd = max(maxd, d[i]);
    int maxu = 0;
    for (int i = 1; i <= n; ++i)
    {
        if (l[i] < 0)
        {
            int ymax = -l[i];
            for (int j = d[i]; j < maxd; ++j)
            {
                if (ymax == 1)
                    break;
                ymax = (ymax / 2) + (ymax % 2);
            }
            maxu = max(maxu, ymax);
        }
        if (r[i] < 0)
        {
            int ymax = -r[i];
            for (int j = d[i]; j < maxd; ++j)
            {
                if (ymax == 1)
                    break;
                ymax = (ymax / 2) + (ymax % 2);
            }
            maxu = max(maxu, ymax);
        }
    }
    assert(maxu);
    vector<int> v;
    while (maxu)
    {
        v.push_back(maxu % 2);
        maxu /= 2;
    }
    reverse(all(v));
    for (int i = 0; i < v.size(); ++i)
        printf("%d", v[i]);
    for (int i = 0; i <= maxd; ++i)
        printf("0");
    printf("\n");
}

int main()
{
    #ifdef SOMETHING
    freopen("input.txt", "r", stdin);
    //freopen("output.txt", "w", stdout);
    #endif // SOMETHING
    //ios_base::sync_with_stdio(false), cin.tie(0);
    solv();
    return 0;
}

//while ((double)clock() / CLOCKS_PER_SEC <= 0.9){}

컴파일 시 표준 에러 (stderr) 메시지

paralelogrami.cpp: In function 'void solv()':
paralelogrami.cpp:77:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < v.size(); ++i)
                     ~~^~~~~~~~~~
paralelogrami.cpp:34:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
paralelogrami.cpp:37:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d", &l[i], &r[i]);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~

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