We use cookies to ensure you have the best browsing experience on our website. Please read our cookie policy for more information about how we use cookies.
  1. Prepare
  2. Python
  3. Strings
  4. Find a string
  5. Discussions

Find a string

Sort by

recency

|

3424 Discussions

|

  • mohamedzaali
     + 0 comments

    def count_substring(string, sub_string): j=0 for i in range(len(string)+1): if(string.find(sub_string,i,i+len(sub_string))>=0) : j = j+1 return j

  • randz_argonillo
     + 0 comments
    def count_substring(string, sub_string):
    count = 0
    next_index = 0
    
    while True:
        found_index = string.find(sub_string, next_index)
        if found_index >= 0:
            count += 1
            next_index = found_index + 1
        else:
            return count

  • h211801371005
     + 0 comments
    count = 0
start = 0
while start <= len(string) - len(sub_string):
    pos = string.find(sub_string, start)
    if pos != -1:
        count += 1
        start = pos + 1
    else:
        break
return count

  • sssunri
     + 0 comments
    def count_substring(string, sub_string):
    count = 0
    found = string.find(sub_string)
    
    while found != -1:
        count += 1
        found = string.find(sub_string, found + 1)
        
    return count

  • kashi533864
     + 1 comment

    Need Help!
    Can anyone help me understand what is wrong with my code? I keep trying to understand but i cant get it right.

    def count_substring(string, sub_string):
    cout = 0
    flag = False
    l2 = list(sub_string)
    n2 = len(sub_string)
    l1 = list(string)
    n1 = len(string)
    for i in range(n1-n2+1):
        if l1[i]==l2[0]:
            for x in range(n2):
                if l1[i+x] == l2[x]:
                    flag = True
                else:
                    flag = False
            if flag:
                cout+=1
                flag = False
    
    return cout

if __name__ == '__main__':
    string = input().strip()
    sub_string = input().strip()
    
    count = count_substring(string, sub_string)
    print(count)

    • ashar_1
       + 2 comments

      I think the issue is that you are overcomplicating it (too many lines), so you'll likely make lots of hard to fix small errors.

      I recommend restarting from scratch with online help.

      • kashi533864
         + 0 comments

        I've already done it. Yep had to start from the scratch. BTW thanks for the response. 😊

Join us

Create a HackerRank account

Be part of a 26 million-strong community of developers

Already have an account?Log in