Please explain this Python code def trigrams(ls,t): # counts user supplied trigram trioccurs = 0 # loop through longstring counting occurences of target for lc in range(0,len(ls)-2): if ls[lc:lc+3] == t: trioccurs += 1 return trioccurs def trigrams(ls): # uses a dictionary; finds all trigrams dict = {} # loop through longstring counting occurences of target for lc in range(0,len(ls)-2): t = ls[lc:lc+3] # if not there, insert into dictionary if t not in dict: dict[t] = 1 else: dict[t] = dict[t] + 1 return dict

New Perspectives on HTML5, CSS3, and JavaScript
6th Edition
ISBN:9781305503922
Author:Patrick M. Carey
Publisher:Patrick M. Carey
Chapter14: Exploring Object-based Programming: Designing An Online Poker
Section14.1: Visual Overview: Custom Objects, Properties, And Methods
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Please explain this Python code
def trigrams(ls,t): # counts user supplied trigram

trioccurs = 0
# loop through longstring counting occurences of target
for lc in range(0,len(ls)-2):
if ls[lc:lc+3] == t:
trioccurs += 1

return trioccurs

def trigrams(ls): # uses a dictionary; finds all trigrams

dict = {}

# loop through longstring counting occurences of target
for lc in range(0,len(ls)-2):
t = ls[lc:lc+3]
# if not there, insert into dictionary
if t not in dict:
dict[t] = 1
else:
dict[t] = dict[t] + 1

return dict
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