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def find _ paths ( matrix , n , oxygen _ capacity ) : def dfs ( x , y , path, oxygen ) :
def findpathsmatrix n oxygencapacity:
def dfsx y path, oxygen:
nonlocal foundpaths
if x or x n or y or y n or matrixxyO or visitedxy:
return
oxygen intmatrixxy
if oxygen :
return
visitedxy True
path.appenddirectionsx y
if x y n or x yn n :
foundpaths.appendjoinpath oxygen
for dx dy in directions.values:
dfsx dx y dy path, oxygen
path.pop
visitedxy False
directions
: R
: D
: L
: U
visited False n for in rangen
foundpaths
dfs oxygencapacity
return foundpaths
# Input
n intinputEnter the value of n:
matrix inputstrip for in rangen
oxygencapacity intinputEnter the oxygen capacity:
# Finding paths
result findpathsmatrix n oxygencapacity
# Output
if not result:
printNo path available to reach the destination"
elif not anyoxygen for oxygen in result:
printNo feasible path"
else:
printThe available paths are"
for path, in result:
printpath
printThe feasible paths with remaining oxygen levels are"
for path, oxygen in result:
if oxygen :
printfpathoxygen
is this correct?
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