Submission #212787

#	Time	Username	Problem	Language	Result	Execution time	Memory
212787		KoalaMuch	Cave (IOI13_cave)	C11	Compilation error	0 ms	0 KiB

cave

#include "cave.h"
#include "grader.c"
#include<stdio.h>
void exploreCave(int n) {
    int s[n],d[n],ask[n];
    for(int i=0;i<n;i++)    s[i] = d[i] = -1;
    for(int i=0;i<n;i++)
    {
        int cor = 0;
        for(int j=0;j<n;j++)
        {
            if(s[j]==-1)    ask[j] = 0;
            else            ask[j] = s[j];
        }
        cor^=tryCombination(ask)==i;
        int l = 0,r = n-1;
        while(l<r)
        {
            int mid = (l+r) >> 1;
            for(int j=l;j<=mid;j++)
            {
                if(s[j]==-1)    ask[j] = cor;
                else            ask[j] = s[j];
            }
            for(int j=mid+1;j<=r;j++)
            {
                if(s[j]==-1)    ask[j] = cor^1;
                else            ask[j] = s[j];
            }
            if(tryCombination(ask)==i)  r=mid;
            else                        l=mid+1;
        }
        d[i] = l;
        s[l] = cor;
    }
    answer(s,d);
}

Compilation message (stderr)

/tmp/ccMFGJcK.o: In function `answer':
cave.c:(.text+0x0): multiple definition of `answer'
/tmp/ccvOQAeN.o:grader.c:(.text+0x0): first defined here
/tmp/ccMFGJcK.o: In function `tryCombination':
cave.c:(.text+0x90): multiple definition of `tryCombination'
/tmp/ccvOQAeN.o:grader.c:(.text+0x90): first defined here
/tmp/ccMFGJcK.o: In function `init':
cave.c:(.text+0x130): multiple definition of `init'
/tmp/ccvOQAeN.o:grader.c:(.text+0x130): first defined here
/tmp/ccMFGJcK.o: In function `main':
cave.c:(.text.startup+0x0): multiple definition of `main'
/tmp/ccvOQAeN.o:grader.c:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status