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题目6:找出前100个自然数的“和的平方”与“平方的和”之差
Sum square difference
The sum of the squares of the first ten natural numbers is,
12 + 22 + ... + 102 = 385
The square of the sum of the first ten natural numbers is,
(1 + 2 + ... + 10)2 = 552 = 3025
Hence the difference between the sum of the squares of the first ten natural numbers and the square of the sum is 3025 - 385 = 2640.
Find the difference between the sum of the squares of the first one hundred natural numbers and the square of the sum.
题目翻译:
前十个自然数的平方和是:
12 + 22 + ... + 102 = 385
前十个自然数的和的平方是:
(1 + 2 + ... + 10)2 = 552 = 3025
所以平方和与和的平方的差是 3025 - 385 = 2640。
那么请找出前 100 个自然数的 “和的平方” 与 “平方的和” 之差?
视频讲解:
思路解析及源码参考(C & Python):
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