Submission #393229

#	Time	Username	Problem	Language	Result	Execution time	Memory
393229		Gamma	Cave (IOI13_cave)	C++14	Compilation error	0 ms	0 KiB

cave

//#include "cave.h"
#include "bits/stdc++.h"
using namespace std;

void exploreCave(int N)
{
    int y, a[N], d[N], s[N];
    memset(d, -1, sizeof d);

    for(int i = 0; i < N; i++)
    {
       // memset(a, 0, sizeof a);
        for(int j = 0; j < N; j++)
        {
            if(j < i)
            a[j] = s[d[j]];
            else a[j] = 0;
        }
        y = tryCombination(a);
        if(y < i && y != -1)
        {
            int S = i, e = N - 1, mid;
            while(S <= e)
            {
                mid = (S + e) / 2;
                for(int j = S; j < mid; j++)
                {
                    a[j] = 1;
                }
                y = tryCombination(a);
                if(y < i && y != -1)
                {
                    a[mid] = 1;
                    y = tryCombination(a);
                    if(y < i && y != -1)
                    {
                        S = mid + 1;
                    }
                    else
                    {
                        d[i] = mid;
                        s[mid] = 1;
                        break;
                    }
                }
                else
                {
                    e = mid - 1;
                    for(int j = S; j < mid; j++)
                    {
                        a[j] = 0;
                    }
                }

            }
        }else
        {
            int S = i, e = N - 1, mid;
            while(S <= e)
            {
                mid = (S + e) / 2;
                for(int j = S; j < mid; j++)
                {
                    a[j] = 1;
                }
                y = tryCombination(a);
                if(y < i && y != -1)
                {
                    e = mid - 1;
                    for(int j = S; j < mid; j++)
                    {
                        a[j] = 0;
                    }
                }
                else
                {
                    a[mid] = 1;
                    y = tryCombination(a);
                    if(y < i && y != -1)
                    {
                        d[i] = mid;
                        s[mid] = 1;
                        break;
                    }
                    else
                    {
                        S = mid + 1;
                    }
                }

            }
        }
    }
    answer(s, d);
}

Compilation message (stderr)

cave.cpp: In function 'void exploreCave(int)':
cave.cpp:19:13: error: 'tryCombination' was not declared in this scope
   19 |         y = tryCombination(a);
      |             ^~~~~~~~~~~~~~
cave.cpp:94:5: error: 'answer' was not declared in this scope
   94 |     answer(s, d);
      |     ^~~~~~