import numba
import numpy as np

@numba.jit(nopython=True)
def minmax(array):
    N = array.shape[0]
    vmin = np.full((N,), np.inf,dtype=array.dtype)
    vmax = np.full((N,),-np.inf,dtype=array.dtype)
    for ii in range(N):
        for val in array[ii,...].ravel():
            vmin[ii] = min(vmin[ii],val)
            vmax[ii] = max(vmax[ii],val)
    return vmin,vmax