Is it true?
Most probably those four were unsolvable too. 
Did you check the graph?
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Did you get 288 for first test case?
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Cheer up bro, you’re not the only victim. 
This question is actually available on Leetcode
The setters are really dumb. I saw one of the set from zone 1 and the questions were as easy as codeforces A and B
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Would love to know correct solutions of string pair and string merge, I invested a lot of time still couldn’t clear private test cases.
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u searched alot 
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Bhai 
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Nah i just typed split string into 3 palindromes and it was on top of result
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This round was a blunder 
a complete waste of 6 hours!
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Wow, may be this is real luck,nothing is hidden in google database, just u need to call them with some mantra, and u will get some solution.
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Graph was not available.
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Yes, But if u want correct then consider 1 hr contains [0,98) minutes . 
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Did Anyone get fill the cube right? I couldn’t clear it. What is the approach is someone cleared it.
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i also got this exact set, and the graph was empty, no one was able to submit any solution for all of these problems.RIP
At the end we can’t do anything. It is TCS who holds all the power to make the question correct or incorrect or the testcases correct or incorrect.
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I tried that problem for almost 3 hours figuring out different ways to get it accepted.
There was no clarity in how the output shoud be printed like if 45 shoud be forty five or fortyfive
even then I tried to print in different ways but still was getting WA.
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In my set I am able to solve only binary equivalent and path through graph and even odd passing on public test cases only
yup, wasted 2 hours trying 2 (probably) incorrect problems
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even i beleive testcases were wrong i was not getting correct answer for the sample test case using brute force
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