Question: 
Write a python function to count the number of substrings with same first and last characters.


Model's Code:
def count_Substring_With_Equal_Ends(s):
    count = 0
    n = len(s)
    for i in range(n):
        for j in range(i, n):
            if s[i] == s[j]:
                count += 1
    return count



Sample Correct Code:
def check_Equality(s): 
    return (ord(s[0]) == ord(s[len(s) - 1])); 
def count_Substring_With_Equal_Ends(s): 
    result = 0; 
    n = len(s); 
    for i in range(n):
        for j in range(1,n-i+1): 
            if (check_Equality(s[i:i+j])): 
                result+=1; 
    return result; 


Asserts:
assert count_Substring_With_Equal_Ends('aba') == 4
assert count_Substring_With_Equal_Ends('abcab') == 7
assert count_Substring_With_Equal_Ends('abc') == 3


Tests:
Test 1 of 3: PASS
Test 2 of 3: PASS
Test 3 of 3: PASS

Test 338 of 974: 245/338 (72.48520710059172%): success