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Problem #197

Kill the King

Daenerys has 3 dragons and 9 XORgons (a creature that can breathe any number from the range [0,123456789] ). If multiple XORgons throw numbers to a target at a time then the resulting number will be the XOR of the individual numbers thrown by each XORgon. Surprisingly the night king can be killed by the number 123456789. Help Tyrion to find out how many ways all 9 XORgons can throw number to the night king such that night king can be killed.

To cut the long story short how many unordered 9-tuples (a,b,c,d,e,f,g,h,i) are there such that a\wedge b\wedge c\wedge d\wedge e\wedge f\wedge g\wedge h\wedge i=123456789 and a,b,c,d,e,f,g,h,i are numbers from the range [0,123456789]. Submit the answer modulo 1000000016000000063.

\wedge represents the bitwise XOR operation.

Contributed by Abhishek Kanhar

Solved by 7 users

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