Finding the run length encoding for characters works on most of the test cases except one-CodePudding

For multiple repeating character string my code is working fine, but here is the scenario where I give string "aaabba" the expected output is a3b2a1 but I get only a3b2. Please advise me as what is wrong in the code.

st = "aaabba"
n = len(st)
i = 0
while i < n - 1:
    count = 1   
    while (i < n-1 and st[i] == st[i 1]):
        count  = 1
        i  = 1
    i  = 1
    print(st[i - 1]   str(count), end="")

CodePudding user response：

The problem is in first while loop. The code should be:

st = "aaabba"
n = len(st)
i = 0
while i < n:
    count = 1   
    while (i < n-1 and st[i] == st[i 1]):
        count  = 1
        i  = 1
    i  = 1
    print(st[i - 1]   str(count), end="")