class Solution: def countSubstrings(self, s: str) -> int: | INFOSYS&WIPRO&COGNIZANT&ACCENTURE &TCS& ALL OFF CAMPUS exam answers group

class Solution:
def countSubstrings(self, s: str) -> int:
n = len(s)
c=0
for i in range(0,n-1): #i=0
print('i:',i)
for j in range(i+1,n+1): #j=1
print('j',j)
temp = s[i:j]
if len(temp) == 1:
c+=1
# if the len of substring is even,
# check if the reverse of the string is same as the string
elif(len(temp)%2 == 0):
if (temp == temp[::-1]):
c+=1
print("c",c)
else:
# create a dict to check how many times
# each value has occurred
d = {}
for l in range(len(temp)):
if temp[l] in d:
d[temp[l]] = d[temp[l]]+1
else:
d[temp[l]] = 1
print(d)

return c


op = Solution()
op.countSubstrings('aabb')

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