Czech ACM Student Chapter
Czech Technical University in Prague
Charles University in Prague
Technical University of Ostrava
acm
ˇ ´
Slovak University of Technology
Pavol Jozef Safarik University in Koˇice
s
cz
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University of Zilina
Masaryk University
Matej Bel University in Bansk´ Bystrica
a
University of West Bohemia
CTU Open Contest 2012 -- Practice Session
Software Bugs
bugs.c, bugs.cpp, Bugs.java
Not all bugs are insects. There are also certain kinds of bugs that may become a real nightmare
for software developers. You definitely know the situation when a user calls to say "Hey, I've
found a bug in your program." Once you have located and removed the bug, another one appears
immediately. It is a hard and never-ending process.
Recently, there appeared a promising open-source initiative called the Bug Preprocessor. The
preprocessor is a program able to find all bugs in your source code and mark them, so they are
relatively easy to remove. Your task is to write a program that will remove all marked bugs
from the preprocessed source code.
Input Specification
The input contains several test cases. Each test case starts with a line containing one integer
number T (0 ≤ T ≤ 1000), one space and a string B used by the preprocessor to mark all
bugs. The next T lines then contain the preprocessed source code. All bugs are represented by
a case-sensitive string B.
Each line of the input will be between 0 and 200 characters long. The bug marker B consists of
at least 1 and at most 10 uppercase letters ("A" through "Z").
Output Specification
Your program must remove all of the bugs from the input and print a text that does not contain
any occurrence of B. Nothing else than bugs may be removed, not even spaces.
Sample Input
Output for Sample Input
7 BUG
print "No bugs here..."
print "No bugs here..."
void hello() {
void hello() {
BUGBUG
printf("Hello, world!\n");
printfBUG("Hello, world!\n");
}
}
writeln("Hello E-R-R");
1 ERR
wriERRERRtelERRn("Hello E-R-R");
(This problem has been adapted from SWERC archives.)
