Problem: Print common characters for two strings (no duplication)
word1=input('Enter a word(1)')
word2 = input('Enter a word (2)')
common_char='"
for c1 in word1:
for c2 in word2:
pass
# Please write the code you need after this
print(common_char)
As for the problem, I wrote the following and the output went wrong.
Please tell me why.I think the way of thinking about the for sentence is still ambiguous.
word1=input('Enter a word(1)')
word2 = input('Enter a word (2)')
common_char='"
for c1 in word1:
for c2 in word2:
pass
# Please write the code you need after this
for c3 in common_char:
if c1 == c2:
if c1 == c3:
continue
common_char+=c1
print(common_char)
However, I understood the answer and wrote the following using the in function, and the output was correct.
I have no idea what was wrong with the above description.Thank you for your cooperation.
word1=input('Enter a word(1)')
word2 = input('Enter a word (2)')
common_char='"
for c1 in word1:
for c2 in word2:
pass
# Please write the code you need after this
if c1 == c2:
if c1 in common_char:
continue
common_char+=c1
print(common_char)
common_char='"
・
・
・
for c3 in common_char:
if c1 == c2:
if c1 == c3:
continue
common_char+=c1
In the above case, the for statement does not process the for statement because common_char contains no elements (that is, the number of elements is 0) before for c3 in common_char:
The number of elements is n = the number of times the for statement is processed is n times.
if c1 in common_char:
continue
Next, regarding the in operation in this if statement, the above code has not been processed because common_char contains no elements before ifc1 in common_char:.Try commenting out these two lines.
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