squares of the integer till 100 are
1,4,9,16,25,36,49,64,81
(1) says that n is even.possible n are 4,16,36,64, as the value is not fixed, ont suff
(2)cubes till 100 are
1,8,27,64,but only one of them is also square of the integer it is 64=8^2=4^3. so n=64 suff
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