﻿ Python: Check whether it follows the sequence given in the patterns array - w3resource

# Python: Check whether it follows the sequence given in the patterns array

## Python: Array Exercise-16 with Solution

Write a Python program to check whether it follows the sequence given in the patterns array.

Pattern example:
For color1 = ["red", "green", "green"] and patterns = ["a", "b", "b"]
the output should be samePatterns(color1, patterns) = true;
For color2 = ["red", "green", "greenn"] and patterns = ["a", "b", "b"]
the output should be samePatterns (strings, color2) = false.

Sample Solution:

Python Code :

``````def is_samePatterns(colors, patterns):
if len(colors) != len(patterns):
return False
sdict = {}
pset = set()
sset = set()
for i in range(len(patterns)):
if patterns[i] not in sdict.keys():
sdict[patterns[i]] = []

keys = sdict[patterns[i]]
keys.append(colors[i])
sdict[patterns[i]] = keys

if len(pset) != len(sset):
return False

for values in sdict.values():

for i in range(len(values) - 1):
if values[i] != values[i+1]:
return False

return True

print(is_samePatterns(["red",
"green",
"green"], ["a",
"b",
"b"]))

print(is_samePatterns(["red",
"green",
"greenn"], ["a",
"b",
"b"]))
``````

Sample Output:

```True
False
```

Python Code Editor: