Submission #173878

#	Time	Username	Problem	Language	Result	Execution time	Memory
173878		stefdasca	Dancing Elephants (IOI11_elephants)	C++14	Compilation error	0 ms	0 KiB

elephants

#include "elephants.h"

int n, lg;

int vals[150002], srt[150002], nw[150002];
void init(int N, int L, int X[])
{
    n = N;
    lg = L;
    for(int i = 1; i <= N; ++i)
        srt[i] = X[i-1], vals[i] = X[i-1];
    vals[n+1] = 2100000000;
}

int binsearch(int val)
{
    int st = 1;
    int dr = n;
    int ans = 0;
    while(st <= dr)
    {
        int mid = (st + dr) / 2;
        if(vals[mid] <= val)
            ans = mid, st = mid + 1;
        else
            dr = mid - 1;
    }
    return ans;
}
int update(int i, int y)
{
    ++i;
    int pz = binsearch(y);
    int pma = pz;
    int pmb = pz2;
    while(pma <= n)
    {
        if(y <= vals[pmb])
            vals[pma] = y, y = (1<<30), ++pma;
        else
            vals[pma] = vals[pmb], ++pmb, ++pma;
    }
    int ans = 0;
    int st = 0;
    for(int i = 1; i <= n;)
    {
        ++ans;
        st = vals[i];
        while(vals[i] - st <= lg)
            ++i;
    }
    return ans;
}

Compilation message (stderr)

elephants.cpp: In function 'int update(int, int)':
elephants.cpp:35:15: error: 'pz2' was not declared in this scope
     int pmb = pz2;
               ^~~
elephants.cpp:35:15: note: suggested alternative: 'pz'
     int pmb = pz2;
               ^~~
               pz