this time i remove redundant which not add full column sum already has beeb 27*2
but it always has syntax error, indentation error,
where is wrong?
def DFS(b, deep, maxx, sourceoperators, path):
initlist = []
if deep > 0:
print("deep=", deep)
for aa,bb in itertools.combinations(sourceoperators, 2):
print(aa,bb)
if deep == maxx:
finalresult = []
op1xy = [aa[b[i][0:1]+b[i][1:2]] for i in range(len(b))]
op1yz = [aa[b[i][1:2]+b[i][2:3]] for i in range(len(b))]
op1xz = [aa[b[i][0:1]+b[i][2:3]] for i in range(len(b))]
op2xy = [bb[b[i][0:1]+b[i][1:2]] for i in range(len(b))]
op2yz = [bb[b[i][1:2]+b[i][2:3]] for i in range(len(b))]
op2xz = [bb[b[i][0:1]+b[i][2:3]] for i in range(len(b))]
if sum(op1xy) == 54:
path.append([(deep, aa, b, "xy")])
else:
initlist.append(op1xy)
if sum(op1yz) == 54:
path.append([(deep, aa, b, "yz")])
else:
initlist.append(op1yz)
if sum(op1xz) == 54:
path.append([(deep, aa, b, "xz")])
else:
initlist.append(op1xz)
if sum(op2xy) == 54:
path.append([(deep, bb, b, "xy")])
else:
initlist.append(op2xy)
if sum(op2yz) == 54:
path.append([(deep, bb, b, "yz")])
else:
initlist.append(op2yz)
if sum(op2xz) == 54:
path.append([(deep, bb, b, "xz")])
else:
initlist.append(op2xz)
else:
level = []
for j in range(len(b)):
op1xy = [aa[b[j][i]] for i in range(len(b[j]))]
op2xy = [bb[b[j][i]] for i in range(len(b[j]))]
if sum(op1xy) == 54:
path.append([(deep, aa, b[j], "xy")])
else:
initlist.append(op1xy)
if sum(op2xy) == 54:
path.append([(deep, bb, b[j], "xy")])
else:
initlist.append(op2xy)
level.append(op1xy)
level.append(op2xy)
print("initlist=")
print(len(initlist)
if deep == maxx:
if deep > 0:
b = []
for aaa,bbb in itertools.combinations(initlist, 2):
b.append([str(i)+str(j) for i,j in zip(aaa, bbb)])
print("deep=")
print(deep)
path2 = DFS(b, deep-1, maxx, sourceoperators, path)
path.append(path2)
else:
print("")
print("path=")
print(len(path))
else:
if deep > 0:
for aaa,bbb in itertools.combinations(initlist, 2):
b.append([str(i)+str(j) for i,j in zip(aaa, bbb)])
print("deep=")
print(deep)
path2 = DFS(b, deep-1, maxx, sourceoperators, path)
path.append(path2)
else:
print("")
print("path=")
print(len(path))
return path
On Saturday, June 11, 2016 at 8:34:16 AM UTC+8, MRAB wrote:
> On 2016-06-11 00:31, meInvent bbird wrote:
> > it is quite ridiculous,
> > this time i am sure that i put correct indentation
> > and add a else statement to make sure recursive call inside the
> > if statement , it still memory error,
> >
> > where is the memory error?
> >
> > is itertools.combinations so big for the list?
> >
> [snip]
>
> How long is initlist?
>
> When I ran the code, it said over 100_000 items.
>
> How many combinations would there be?
>
> Over 10_000_000_000.
>
> That's how long the list 'b' would be.
>
> You'll need 10s of gigabytes of memory and a lot of patience!
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