Submission #166912

#	Time	Username	Problem	Language	Result	Execution time	Memory
166912		luciocf	ICC (CEOI16_icc)	C++14	90 / 100	170 ms	724 KiB

icc

#include <bits/stdc++.h>
#include "icc.h"

using namespace std;

const int maxn = 110;

int pai[maxn], peso[maxn];
int A[maxn], B[maxn];

vector<int> comp[maxn];

void init(int n)
{
    for (int i = 1; i <= n; i++)
    {
        pai[i] = i, peso[i] = 1;
        comp[i].push_back(i);
    }
}

int Find(int x)
{
    if (pai[x] == x) return x;
    return pai[x] = Find(pai[x]);
}

void Join(int x, int y)
{
    x = Find(x), y = Find(y);
    if (x == y) return;

    if (__builtin_clz(x) > __builtin_clz(y)) swap(x, y);
    if (__builtin_clz(x) > __builtin_clz(y))
    {
        int toss = rand()%2;
        if (toss) swap(x, y);
    }

    pai[y] = x, peso[x] += peso[y];

    for (auto v: comp[y])
        comp[x].push_back(v);
}

void run(int n)
{
    init(n);
    
    for (int e = 1; e < n; e++)
    {
        int qwerty = 0;

        for (int i = 1; i <= n; i++)
        {
            if (Find(i) == i)
            {
                for (int j = 0; j < 7; j++)
                    if (i&(1<<j))
                        qwerty = max(qwerty,j);
            }
        }
        
        for (int b = 0; b <= qwerty; b++)
        {
            int sz_a = -1, sz_b = -1;

            for (int i = 1; i <= n; i++)
            {
                if (Find(i) == i)
                {
                    if (i&(1<<b))
                    {
                        for (auto v: comp[i])
                            A[++sz_a] = v;
                    }
                    else
                    {
                        for (auto v: comp[i])
                            B[++sz_b] = v;
                    }
                }
            }

            if (b < qwerty && !query(sz_a+1, sz_b+1, A, B)) continue;

            int ini = 0, fim = sz_a, ans = -1;

            while (ini <= fim)
            {
                int mid = (ini+fim)>>1;

                if (query(mid+1, sz_b+1, A, B)) ans = mid, fim = mid-1;
                else ini = mid+1;
            }

            ini = 0, fim = sz_b;
            int ans2 = -1;

            while (ini <= fim)
            {
                int mid = (ini+fim)>>1;
                
                if (query(ans+1, mid+1, A, B)) ans2 = mid, fim = mid-1;
                else ini = mid+1;
            }

            setRoad(A[ans], B[ans2]);
            Join(A[ans], B[ans2]);

            break;
        }
    }
}

• Subtask 1: 7 / 7
• Subtask 2: 11 / 11
• Subtask 3: 22 / 22
• Subtask 4: 21 / 21
• Subtask 5: 29 / 29
• Subtask 6: 0 / 10