A Pythagorean triplet is a set of three natural numbers, a b c, for which, a 2 + b 2 = c 2 For example, 3 2 + 4 2 = 9 + 16 = 25 = 5 2 . There exists exactly one Pythagorean triplet for which a + b + c = 1000. Find the product abc. a - expand.grid(1:250,250:500,250:500) a - a +a +a ==1000),] a - a ^2+a ^2==a ^2),] cat("三元组中abc的乘积是:", a *a *a , "\n") 三元组中abc的乘积是: 31875000