Sphere Online Judge

SPOJ Problem Set (classical)

2157. Anti-Blot System

Problem code: ABSYS

Jimmy is a hard-working pupil in his second year at primary school. Recently he decided to convert all his notes into an electronic version. Sadly, he found that his math notes were full of ink blots.

He scanned the notes and sent them through his own OCR package (yes, he coded it all by himself at the age of 8). The OCR package replaced all ink blots by the string "machula".

Problem specification

You are given Jimmy's notes, processed by the OCR. They contain simple math exercises, which were used to practice addition on positive integers. Your task is to recover the damaged part of the notes.

Input specification

The first line of the input file contains an integer T specifying the number of test cases. Each test case is preceded by a blank line.

Each test case consists of exactly one line. The line represents an equation of the form "number + number = number", where each number is a positive integer. One part of the equation will be replaced by the string "machula". The string always covers a contiguous non-empty sequence of digits, possibly even an entire number. You may assume that for each equation in the input there will be exactly one way to fill in the missing digits.

Output specification

For each test case, the output shall contain one line of the form "number + number = number". The line must represent the equation from that test case with all missing digits filled in.



23 + 47 = machula

3247 + 5machula2 = 3749

machula13 + 75425 = 77038
23 + 47 = 70
3247 + 502 = 3749
1613 + 75425 = 77038

Note: int in C++/C/Java or longint in Pascal is enough.

Added by:[Trichromatic] XilinX
Time limit:1s
Source limit:50000B
Memory limit:256MB
Cluster: Pyramid (Intel Pentium III 733 MHz)
Languages:All except: C99 strict ERL JS
Resource:IPSC 2007

hide comments
2014-10-29 20:05:31 Nikhil Khurana
AC in first attempt. Easy one...BE careful with format of input.
2014-10-22 10:57:00 karan
warmup after a long break :D
2014-09-23 11:43:49 ankit bansal
it could got to TLE if string is small..
finally get AC in 2nd attempt :)
2014-09-10 02:50:52 Nand kishore
Easy problem, don't think too much. Very tricky input tough.
2014-07-19 14:50:12 Dipankar Jana
The trick is in the input! :)
2014-07-13 19:27:24 Devashish
for those getting wrong answer for no reason... check carefully the how the input! \n
2014-07-13 13:06:23 Shireen Nagdive
getting runtime error :( someone plz help..my o/p format matches the one mentioned in question still getting runtime error..
2014-06-26 01:26:15 Vikrant Singh
how big the string should be ?
i am getting seg fault everytime :(
2014-06-18 10:07:08 Abhijeet Dubey
take the input carefully...caused me 5 WA...

Last edit: 2014-06-18 10:07:28
2014-06-13 09:20:26 Kushagra Singh
only tricky part is the input, READ THE QUESTION CAREFULLY, caused me 2 WA X_X
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