def exactMatch(A, resolution=1e-8, cython=True):
# via tha LAPJV algorithm
A = np.array(A)
if cython:
[pi, cost, v, u, costMat] = LAPJV.fast_lapjv(A, resolution)
else:
[pi, cost, v, u, costMat] = LAPJV.lapjv(A, resolution)
N = len(pi)
edge_cost = A[xrange(N), pi]
return cost, np.array(pi), np.array(edge_cost)
