不用算术运算符实现整数的加减乘除运算

测试错误的数据
输入：363213591 * -850993220
结果：265850340

Python代码如下：

def add(x,y):
    while(y):
        temp=x^y
        y=(x&y)<<1
        x=temp
    return x

def negative(x):
    return add(~x,1)

def subtraction(x,y):
    if(x<y):
        y=negative(y)
        return add(x,y)
    elif(x==y):
        return 0
    else:
        x=negative(x)
        return negative(add(x,y))

def multiply(x,y):
    c=1 if(x^y<0) else 0
    x=negative(x) if(x<0) else x
    y=negative(y) if(y<0) else y
    temp=0
    while(y):
        if(y&1):
            temp=add(temp,x)
        x<<=1
        y>>=1
    temp=negative(temp) if(c) else temp
    return temp

def division(x,y):
    if(x==0 and y!=0):
        return 0
    c=1 if(x^y<0) else 0
    x=negative(x) if(x<0) else x
    y=negative(y) if(y<0) else y
    if(x<y and y!=0):
        return 0
    temp=0
    while(x>=y):
        trial=y
        t=1
        while((trial<<1)<=x and (trial<<1)>0):
            t<<=1
            trial<<=1
        temp=add(temp,t)
        x=subtraction(x,trial)
    temp=negative(temp) if(c) else temp
    return temp


ls=input().strip().split()
x=int(ls[0])
y=int(ls[2])
o=ls[1]
if '+' in o:
    print(add(x,y))
elif '-' in o:
    print(subtraction(x,y))
elif '*' in o:
    print(multiply(x,y))
elif '/' in o or '\\' in o:
    print(division(x,y))