Doubt == reverse bits

code–https://ide.codingblocks.com/s/383017
ques–https://hack.codingblocks.com/app/contests/1975/798/problem

Hey @aaliyah_beg
You can’t store binary number using this

		while(a>0)
		{
			y=a%2;
			sum=sum+(y*s);
			s*=10;
			a/=2;
		}

because its 32 digits long when no is maximum and even long long cant save it

Try to directly calculate the sum or use arrays instead.

Sir, long long int should work just like it works in ques https://hack.codingblocks.com/app/contests/1975/399/problem where we may convert decimal to binary

Binary representation of 32 bit integer willbe, when all set

1111111111111111111111111111111
Long long range is
9223372036854775807

That worked there because testcases were weak
But it wont work for good testaces

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