Getting AC and WA with same logic but different printing way help( c lang.)

help
1

ACBALL Problem - CodeChef (problem link)
solutiion 1 CodeChef: Practical coding for everyone link partially accepted
solution 2 CodeChef: Practical coding for everyone ac ( just printed directly without storing)
can someone tell why the difference.

2

I think null character is messing up.
You are not adding null character to the end of your manually created string(str3).

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3

yes it worked
Thanks a ton
though on output it doesnt look different for test cases i ran on.

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