PE-6 Sum square difference

package main

import "fmt"

func main() {
    sum := 0
    sum2 := 0
    for i := 1; i <= 100; i++ {
        sum += i
        sum2 += i * i
    }
    fmt.Println(sum*sum - sum2)
}  
结果：25164150   

转载于:https://www.cnblogs.com/miria-486/p/10092986.html