float w[100]; main3() (int n; float s; print("How much weight?"); input(s); print("How mang units goods?"); input(n); for(i=1;i<=n;i=i+1) input(w[i]);if(Knap3(s,n)= false)print("Non solution"); Knap3(float s,int n){if(s=0) //数组 w[n]为全局量 return(true);else if((s<0)or(s>0andn<1))return(false);else if(Knap3(s-w[n],n-1)= true){print("choose",w[n]);return(true);) else return(Knap3(s,n-1));转换成python语言的代码

下面是将该代码转换成 Python 语言的代码：

w = [0] * 100

def Knap3(s, n):
    global w
    if s == 0:
        return True
    elif s < 0 or (s > 0 and n < 1):
        return False
    elif Knap3(s - w[n], n - 1):
        print("choose", w[n])
        return True
    else:
        return Knap3(s, n - 1)

def main3():
    global w
    n = int(input("How many units goods? "))
    s = float(input("How much weight? "))
    for i in range(1, n + 1):
        w[i] = float(input())
    if not Knap3(s, n):
        print("No solution")

main3()

注意，在 Python 中需要使用 `global` 关键字声明使用全局变量 w。另外，Python 的输入函数是 input()，而不是 print()。

相关问题

float power (float f,int n)

这是一个函数声明，它接受两个参数：一个浮点数 f 和一个整数 n，返回一个浮点数。该函数的功能是计算 f 的 n 次方。具体实现可以使用循环或递归来完成。以下是使用循环实现的示例代码：

float power(float f, int n) {
    float result = 1.0f;
    int i;
    for (i = 0; i < n; i++) {
        result *= f;
    }
    return result;
}

注意，这只是一个示例代码，可能并不是最优的实现方式，具体实现可以根据需求进行优化。

unsupported operand type(s) for ^: 'float' and 'int'

This error message occurs when you try to use the exponentiation operator "^" with a float and an integer. The exponentiation operator can only be used with two operands that are either both integers or both floats.

To fix this error, you can either convert the integer to a float or the float to an integer depending on your use case.

For example, if you want to raise a float number to an integer power, you can convert the integer to a float using the float() function like this:

x = 2.5
y = 3
result = x ** float(y)
print(result)

Alternatively, if you want to raise an integer to a float power, you can convert the integer to a float using the float() function like this:

x = 2
y = 1.5
result = float(x) ** y
print(result)