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## Example 1:
## arrInputRouteList = [[1, 2, 6], [5, 6, 7]]
## nSource = 1
## nDestination = 7
## Example 2:
## arrInputRouteList = [[1, 2, 3], [4, 5, 6]]
## nSource = 2
## nDestination = 5
## Example 3:
arrInputRouteList = [[1, 2, 3], [4, 5, 6], [3, 8, 9], [7, 8]]
nSource = 1
nDestination = 7
nSourceIndx = -1
nDestinationIndx = -1
arrOutputRouteList = []
for nIndx, arrLoop in enumerate(arrInputRouteList):
if nSource in arrLoop:
nSourceIndx = nIndx
elif nDestination in arrLoop:
nDestinationIndx = nIndx
## print (nSourceIndx)
## print (nDestinationIndx)
if nSourceIndx < 0 or nDestinationIndx < 0:
print (-1)
elif nSourceIndx == nDestinationIndx:
nStartIndx = arrInputRouteList[nSourceIndx].index(nSource)
nEndIndx = arrInputRouteList[nDestinationIndx].index(nDestination)
if nEndIndx < nStartIndx:
for nIndx in range(nStartIndx, nEndIndx - 1, -1):
arrOutputRouteList.append(arrInputRouteList[nSourceIndx][nIndx])
else:
for nIndx in range(nStartIndx, nEndIndx + 1):
arrOutputRouteList.append(arrInputRouteList[nSourceIndx][nIndx])
elif len(arrInputRouteList) <= 2:
## Check Intersection
arrIntersection = [nElem for nElem in arrInputRouteList[nSourceIndx] if nElem in arrInputRouteList[nDestinationIndx]]
if len(arrIntersection) == 0:
print (-1)
else:
## Source Array Part
nStartIndx = arrInputRouteList[nSourceIndx].index(nSource)
nEndIndx = arrInputRouteList[nSourceIndx].index(arrIntersection[0])
if nEndIndx < nStartIndx:
for nIndx in range(nStartIndx, nEndIndx, -1):
arrOutputRouteList.append(arrInputRouteList[nSourceIndx][nIndx])
else:
for nIndx in range(nStartIndx, nEndIndx):
arrOutputRouteList.append(arrInputRouteList[nSourceIndx][nIndx])
## Destination Array Part
nStartIndx = arrInputRouteList[nDestinationIndx].index(arrIntersection[0])
nEndIndx = arrInputRouteList[nDestinationIndx].index(nDestination)
if nEndIndx < nStartIndx:
for nIndx in range(nStartIndx, nEndIndx - 1, -1):
arrOutputRouteList.append(arrInputRouteList[nDestinationIndx][nIndx])
else:
for nIndx in range(nStartIndx, nEndIndx + 1):
arrOutputRouteList.append(arrInputRouteList[nDestinationIndx][nIndx])
print (arrOutputRouteList)
else:
## Check Intersection
arrIntersection = [nElem for nElem in arrInputRouteList[nSourceIndx] if nElem in arrInputRouteList[nDestinationIndx]]
if len(arrIntersection) == 0:
nInterSourceIndx = -1
nInterDestinationIndx = -1
nInterSourceElem = -1
nInterDestinationElem = -1
for nIndx, arrLoop in enumerate(arrInputRouteList):
if nIndx == nSourceIndx or nIndx == nDestinationIndx:
continue
arrIntersection = [nElem for nElem in arrInputRouteList[nSourceIndx] if nElem in arrInputRouteList[nIndx]]
if len(arrIntersection) > 0:
nInterSourceIndx = nIndx
nInterSourceElem = arrIntersection[0]
arrIntersection = [nElem for nElem in arrInputRouteList[nDestinationIndx] if nElem in arrInputRouteList[nIndx]]
if len(arrIntersection) > 0:
nInterDestinationIndx = nIndx
nInterDestinationElem = arrIntersection[0]
if nInterSourceIndx < -1 or nInterDestinationIndx < -1:
print (-1)
elif nInterSourceIndx == nInterDestinationIndx:
## Source Array Part
nStartIndx = arrInputRouteList[nSourceIndx].index(nSource)
nEndIndx = arrInputRouteList[nSourceIndx].index(nInterSourceElem)
if nEndIndx < nStartIndx:
for nIndx in range(nStartIndx, nEndIndx, -1):
arrOutputRouteList.append(arrInputRouteList[nSourceIndx][nIndx])
else:
for nIndx in range(nStartIndx, nEndIndx):
arrOutputRouteList.append(arrInputRouteList[nSourceIndx][nIndx])
## Inter Array Part
nStartIndx = arrInputRouteList[nInterSourceIndx].index(nInterSourceElem)
nEndIndx = arrInputRouteList[nInterSourceIndx].index(nInterDestinationElem)
if nEndIndx < nStartIndx:
for nIndx in range(nStartIndx, nEndIndx, -1):
arrOutputRouteList.append(arrInputRouteList[nInterSourceIndx][nIndx])
else:
for nIndx in range(nStartIndx, nEndIndx):
arrOutputRouteList.append(arrInputRouteList[nInterSourceIndx][nIndx])
## Destination Array Part
nStartIndx = arrInputRouteList[nDestinationIndx].index(nInterDestinationElem)
nEndIndx = arrInputRouteList[nDestinationIndx].index(nDestination)
if nEndIndx < nStartIndx:
for nIndx in range(nStartIndx, nEndIndx - 1, -1):
arrOutputRouteList.append(arrInputRouteList[nDestinationIndx][nIndx])
else:
for nIndx in range(nStartIndx, nEndIndx + 1):
arrOutputRouteList.append(arrInputRouteList[nDestinationIndx][nIndx])
print (arrOutputRouteList)
else:
## Source Array Part
nStartIndx = arrInputRouteList[nSourceIndx].index(nSource)
nEndIndx = arrInputRouteList[nSourceIndx].index(arrIntersection[0])
if nEndIndx < nStartIndx:
for nIndx in range(nStartIndx, nEndIndx, -1):
arrOutputRouteList.append(arrInputRouteList[nSourceIndx][nIndx])
else:
for nIndx in range(nStartIndx, nEndIndx):
arrOutputRouteList.append(arrInputRouteList[nSourceIndx][nIndx])
## Destination Array Part
nStartIndx = arrInputRouteList[nDestinationIndx].index(arrIntersection[0])
nEndIndx = arrInputRouteList[nDestinationIndx].index(nDestination)
if nEndIndx < nStartIndx:
for nIndx in range(nStartIndx, nEndIndx - 1, -1):
arrOutputRouteList.append(arrInputRouteList[nDestinationIndx][nIndx])
else:
for nIndx in range(nStartIndx, nEndIndx + 1):
arrOutputRouteList.append(arrInputRouteList[nDestinationIndx][nIndx])
print (arrOutputRouteList)
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