Submission #641885

#	Time	Username	Problem	Language	Result	Execution time	Memory
641885		ivaziva	Xylophone (JOI18_xylophone)	C++14	Compilation error	0 ms	0 KiB

xylophone

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

using namespace std;

#define MAXN 5010

long long a[MAXN],d1[MAXN],d2[MAXN],e[MAXN];

void solve(long long n)
{
    for (long long i=0;i<n-1;i++) d1[i]=query(i+1,i+2);
    for (long long i=0;i<n-2;i++) d2[i]=query(i+1,i+3);

    e[0]=d1[0];

    for (long long i=1;i<n-1;i++)
    {
        e[i]=d1[i];

        if (e[i-1]<0)
        {
            e[i]=-e[i];
        }

        if (d1[i-1]+d1[i]!=d2[i-1])
        {
            e[i]=-e[i];
        }
    }

    long long mn=0,mni=0,cur=0;

    for (long long i=1;i<n;i++)
    {
        cur+=e[i-1];

        if (cur<e[i-1])
        {
            mni=i;
            mn=cur;
        }
    }

    cur=0;

    for (long long i=mni;i<n;i++)
    {
        a[i]=cur;
        cur+=e[i-1];
    }

    cur=0;

    for (long long i=mni;i>=0;i--)
    {
        cur-=e[i];
        a[i]=cur;
    }

    long long pos=0;

    while (a[pos]!=n-1) pos++;

    if (mni>pos)
    {
        for (long long i=0;i<n;i++) a[i]=n-1-a[i];
    }

    for (long long i=0;i<n;i++) answer(i+1,a[i]+1);
}

Compilation message (stderr)

xylophone.cpp: In function 'void solve(long long int)':
xylophone.cpp:32:15: warning: variable 'mn' set but not used [-Wunused-but-set-variable]
   32 |     long long mn=0,mni=0,cur=0;
      |               ^~
/usr/bin/ld: /tmp/ccn0I4yF.o: in function `main':
grader.cpp:(.text.startup+0x30): undefined reference to `solve(int)'
collect2: error: ld returned 1 exit status