#力扣：2894. 分类求和并作差@FDDLC

凡我出品，皆属精品2023-10-18 8:36

一、Java

java 复制代码

class Solution {
    public int differenceOfSums(int n, int m) {
        return (1+n)*n/2-n/m*(m+n/m*m)/2;
    }
}

二、C++

cpp 复制代码

class Solution {
public:
    int differenceOfSums(int n, int m) {
        return (1+n)*n/2-n/m*(m+n/m*m);
    }
};

三、Python

python 复制代码

class Solution:
    def differenceOfSums(self, n: int, m: int) -> int:
        return (1+n)*n//2-n//m*(m+n//m*m)

四、JavaScript

python 复制代码

var differenceOfSums = function(n, m) {
    let k=Math.floor(n/m);
    return (1+n)*n/2-(m+m*k)*k;
};

五、Go

Go 复制代码

func differenceOfSums(n int, m int) int {
    return (1+n)*n/2-n/m*(m+n/m*m)
}