Stop Word Printer
Medium
Python
Control Flow
10 views
Problem Statement
Words are provided one by one. Output all words until you see the word stop (case sensitive). Do not output stop itself.
Input Format
• Words are provided one by one (each word on a new line)
• Input ends when the word "stop" is read
• Input ends when the word "stop" is read
Output Format
• Print each word on a new line
• Do not print "stop"
• Do not print "stop"
Example
hello world python stop
hello world python
Constraints
• Each word length ≤ 10^5
• Comparison is case sensitive ("stop" only)
• Comparison is case sensitive ("stop" only)
Concept Explanation
Words are read one by one.
We print each word until we see "stop".
When "stop" appears, we stop reading and do not print it.
We print each word until we see "stop".
When "stop" appears, we stop reading and do not print it.
Step-by-Step Explanation
1.Start an infinite loop.
2.Read a word using input().
3.If the word is exactly "stop", break the loop.
4.Otherwise, print the word.
5.Continue until "stop" is found.
2.Read a word using input().
3.If the word is exactly "stop", break the loop.
4.Otherwise, print the word.
5.Continue until "stop" is found.
Concept Explanation
Words are read one by one.
We print each word until we see "stop".
When "stop" appears, we stop reading and do not print it.
We print each word until we see "stop".
When "stop" appears, we stop reading and do not print it.
Step-by-Step Explanation
1.Start an infinite loop.
2.Read a word using input().
3.If the word is exactly "stop", break the loop.
4.Otherwise, print the word.
5.Continue until "stop" is found.
2.Read a word using input().
3.If the word is exactly "stop", break the loop.
4.Otherwise, print the word.
5.Continue until "stop" is found.
Input / Output Format
Input Format
• Words are provided one by one (each word on a new line)
• Input ends when the word "stop" is read
• Input ends when the word "stop" is read
Output Format
• Print each word on a new line
• Do not print "stop"
• Do not print "stop"
Constraints
• Each word length ≤ 10^5
• Comparison is case sensitive ("stop" only)
• Comparison is case sensitive ("stop" only)
Examples
Input:
hello
world
python
stop
Output:
hello
world
python
Example Solution (Public)
import sysnw=sys.stdin.read().strip().split()nif not w: sys.exit(0)nout=[]nfor tok in w:n if tok=='stop':n breakn out.append(tok)nsys.stdout.write(' '.join(out))
Official Solution Code
import sysnw=sys.stdin.read().strip().split()nif not w: sys.exit(0)nout=[]nfor tok in w:n if tok=='stop':n breakn out.append(tok)nsys.stdout.write(' '.join(out))
Please login to submit solutions.