#include <cstdio>
#include <cstring>

const int maxw=1000001;
int b[maxw];

void add(int i, int x)
{
    while (i<maxw) { b[i]+=x; i+=i&-i; }
}

int sum(int i)
{
    int res=0;
    while (i>0) { res+=b[i]; i-=i&-i; }
    return res;
}

int main()
{
    int n, k;
    while (~scanf("%d%d", &n, &k)) {
        memset(b, 0, sizeof(b));
        while (n--) {
            int w; scanf("%d", &w);
            if (w>0 and sum(maxw)-sum(w-1)<k)
                add(w, 1);
            else if (w<0 and sum(-w)-sum(-w-1)>0)
                add(-w, -1);
        }
        printf("%d\n", sum(maxw));
    }
}