ABSYS - Anti-Blot System

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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.

hide comments
dileep_32: 2021-03-17 19:00:53

use getline() cautiously.
in c++

varuntumbe: 2020-09-13 17:52:28

use try and except in python

ckanzz: 2020-08-01 15:45:15

Use stoi() {use try and catch} , make sure your cpp compiler is version cpp-11 or above its an easy fix,check online , also stoi(5machula2) gives 5 so make sure to cover this case also.

aman_atg: 2019-09-17 08:36:45

running perfectly on my system..but showing compilation error (in c++) on spoj...

jojo9910: 2019-08-24 08:56:37

ac in one go!
using stringstream and stoi functions

abhiladdha: 2019-07-25 14:23:26

running successfully on ideone but showing compilation error on submitting in c++

Last edit: 2019-07-25 14:23:51
almight: 2019-07-10 07:56:50

how to take the input as i am getting run time error(NZEC) in java everytime and the ideone says at java.util.Scanner.throwFor(Scanner.java:862)

at java.util.Scanner.next(Scanner.java:1485)

at java.util.Scanner.nextInt(Scanner.java:2117)

at java.util.Scanner.nextInt(Scanner.java:2076)

at Main.main(Main.java:15)
this error every time.i have also taken a sc.nextLine() as for the blank line.

sanket17: 2019-07-08 14:37:08

take input like this
cin >> a >> b >> c >> d >> e;
now just check a,c,e string
almost constant time

Last edit: 2019-07-08 14:38:00
tanuj_yadav_07: 2019-06-12 10:51:47

this problem will become if the input be like
-23 + 47 = machula
means also contain negative numbers

albatross____: 2019-05-26 14:57:31

if anyone is getting runtime error try taking two getline() ..... one for line and one for the string.

Added by:Fudan University Problem Setters
Time limit:1s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All except: C99 ERL JS-RHINO
Resource:IPSC 2007