제출 #58045

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
58045		MatheusLealV	ICC (CEOI16_icc)	C++17	7 / 100	498 ms	784 KiB

icc

    #include "icc.h"
    #define N 105
    #include <bits/stdc++.h>
    using namespace std;
     
    set<int> grafo[N];
     
    int pai[N], peso[N];
     
    int Find(int x)
    {
        if(x == pai[x]) return x;
     
        return pai[x] = Find(pai[x]);
    }
     
    void join(int a, int b)
    {
        a = Find(a), b = Find(b);
     
        if(a == b) return;
     
        if(peso[a] > peso[b]) pai[b] = a;
     
        else if(peso[a] < peso[b]) pai[a] = b;
     
        else pai[a] = b, peso[b] ++; 
    }
     
    void run(int n)
    {
        for(int i = 1; i <= n; i++)
        {
            pai[i] = i;
        }
     
        for(int i = 1; i < n; i++)
        {
            vector<int> ok;
     
            vector<int> valores, aux;
     
            for(int a = 1; a <= n; a++) valores.push_back(a);
     
            random_shuffle(valores.begin(), valores.end());
     
            for(auto a: valores)
            {
                int esq[N], dir[N], id = 0;
     
                if(ok.size() >= 1) break;
     
                esq[0] = a;
     
                for(int b = 1; b <= n; b++)
                {
                    if(Find(a) != Find(b))
                    {
                        dir[id] = b;
     
                        id ++;
                    }
                }
     
                if(query(1, id, esq, dir) > 0)
                {
                    ok.push_back(a);

                    break;
                }
            }

            for(int a = 1; a <= n; a++)
            {
                if(Find(a) != Find(ok[0]))
                {
                    aux.push_back(a);

                   // cout<<"COLOCA "<<a<<'\n';
                }
            }

            int ini = 0, fim = aux.size() - 1, mid, best;

            while(fim >= ini)
            {
                mid = (ini + fim)/2;

                int esq[N], dir[N];

                esq[0] = ok[0];

                for(int i = 0; i <= mid; i++) dir[i] = aux[i];

                //cout<<mid<<" "<<query(1, mid + 1, esq, dir)<<"\n";

                if(query(1, mid + 1, esq, dir))
                {
                    best = mid;

                    fim = mid - 1;
                }

                else ini = mid + 1;
            }

           // cout<<"ROAD "<<ok[0]<<" "<<aux[best]<<"\n";
     
            join(ok[0], aux[best]);
     
            setRoad(ok[0], aux[best]);
        }
    }

컴파일 시 표준 에러 (stderr) 메시지

icc.cpp: In function 'void run(int)':
icc.cpp:109:33: warning: 'best' may be used uninitialized in this function [-Wmaybe-uninitialized]
             join(ok[0], aux[best]);
                                 ^

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