Trollathon 4-9

Level pending

1 , 2 , 3 , . . . , 65534 , a , b , c , d 1, 2, 3, ..., 65534, a, b, c, d

Determine a c d acd .


The answer is 131070.

Zi Song Yeoh by Zi Song Yeoh , 20, Malaysia

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1 solution

Zi Song Yeoh
Apr 28, 2014

This is trollathon so the answer should not be that simple. Note that in C++, if we used unsigned short, the maximum possible number we can store is 65535 65535 . So, maybe we could take a = 65535 , b = 0 , c = 1 , d = 2 , a = 65535, b = 0, c = 1, d = 2, giving a c d = 131070 acd = \boxed{131070} .

1 Helpful 0 Interesting 0 Brilliant 0 Confused

... speechless

敬全 钟 - 7 years, 1 month ago

b should be 0 and c = 1

Wang Yangwu - 7 years, 1 month ago

Note that in C++, if we used unsigned short , Note that in 32-bit (4 bytes) signed binary representation ,

Amish Naidu - 7 years ago

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