【LetMeFly】2235.两整数相加：19种语言解法（力扣全解法）

力扣题目链接：https://leetcode.cn/problems/add-two-integers/

给你两个整数 num1 和 num2，返回这两个整数的和。

 

示例 1：

输入：num1 = 12, num2 = 5
输出：17
解释：num1 是 12，num2 是 5 ，它们的和是 12 + 5 = 17 ，因此返回 17 。

示例 2：

输入：num1 = -10, num2 = 4
输出：-6
解释：num1 + num2 = -6 ，因此返回 -6 。

 

提示：

• -100 <= num1, num2 <= 100

方法一：返回num1 + num2

• 时间复杂度$O(1)$
• 空间复杂度$O(1)$

AC代码

C++

class Solution {
public:
    int sum(int num1, int num2) {
        return num1 + num2;
    }
};

C

int sum(int num1, int num2){
    return num1 + num2;
}

Python

class Solution:
    def sum(self, num1: int, num2: int) -> int:
        return num1 + num2

Python2

class Solution(object):
    def sum(self, num1, num2):
        """
        :type num1: int
        :type num2: int
        :rtype: int
        """
        return num1 + num2

Java

class Solution {
    public int sum(int num1, int num2) {
        return num1 + num2;
    }
}

C#

public class Solution {
    public int Sum(int num1, int num2) {
        return num1 + num2;
    }
}

Javascript

var sum = function(num1, num2) {
    return num1 + num2;
};

Ruby

def sum(num1, num2)
    return num1 + num2
end

Swift

class Solution {
    func sum(_ num1: Int, _ num2: Int) -> Int {
        return num1 + num2
    }
}

Go

func sum(num1 int, num2 int) int {
    return num1 + num2;
}

Scala

object Solution {
    def sum(num1: Int, num2: Int): Int = {
        num1 + num2
    }
}

Kotlin

class Solution {
    fun sum(num1: Int, num2: Int): Int {
        return num1 + num2
    }
}

Rust

impl Solution {
    pub fn sum(num1: i32, num2: i32) -> i32 {
        return num1 + num2;
    }
}

PHP

class Solution {

    /**
     * @param Integer $num1
     * @param Integer $num2
     * @return Integer
     */
    function sum($num1, $num2) {
        return $num1 + $num2;
    }
}

TypeScript

function sum(num1: number, num2: number): number {
    return num1 + num2
};

Racket

(define/contract (sum num1 num2)
  (-> exact-integer? exact-integer? exact-integer?)
    (+ num1 num2)
  )

Erlang

-spec sum(Num1 :: integer(), Num2 :: integer()) -> integer().
sum(Num1, Num2) ->
  Num1 + Num2.

Elixir

defmodule Solution do
  @spec sum(num1 :: integer, num2 :: integer) :: integer
  def sum(num1, num2) do
    num1 + num2
  end
end

Dart

class Solution {
  int sum(int num1, int num2) {
    return num1 + num2;
  }
}

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