Leetcode's two sums error __init__() missing 2 positional arguments

Leetcode's two sums error init() missing 2 positional arguments

I'm solving leetcode's two sums and I get error __init__() missing 2 positional arguments

Here is my code:

class Solution(object):

    def __init__(self, nums, target):

        self.nums = nums

        self.target = target

    def twoSum(self):

        for i in range(0, len(self.nums)):

            j = self.target-self.nums[i]

            for a in range(i+1,len(self.nums)):

                if self.nums[a]==j:

                    return "(%d, %d)" % (self.nums[i], self.nums[a])

edited Nov 12 at 4:59

Dinko Pehar

1,0372324

asked Nov 11 at 20:04

Quoc Anh Nguyen

1

You probably should "shift" your parameters to the twoSum function, it has not much to do with how you define your class, more how it is "used".
– Willem Van Onsem
Nov 11 at 20:06

1

You must be calling Solution(), but you should be calling Solution(nums, target)
– JacobIRR
Nov 11 at 20:06

1

Welcome to stackoverflow! Please take the tour and read the help pages. Helpful may be "how to ask good questions" and this question checklist. Users here are way more ready to help if you provide minimal, complete, and verifiable example with some input and the desired output.
– Mikhail Stepanov
Nov 11 at 20:48

add a comment |

I'm solving leetcode's two sums and I get error __init__() missing 2 positional arguments

Here is my code:

class Solution(object):

    def __init__(self, nums, target):

        self.nums = nums

        self.target = target

    def twoSum(self):

        for i in range(0, len(self.nums)):

            j = self.target-self.nums[i]

            for a in range(i+1,len(self.nums)):

                if self.nums[a]==j:

                    return "(%d, %d)" % (self.nums[i], self.nums[a])

edited Nov 12 at 4:59

Dinko Pehar

1,0372324

asked Nov 11 at 20:04

Quoc Anh Nguyen

1

You probably should "shift" your parameters to the twoSum function, it has not much to do with how you define your class, more how it is "used".
– Willem Van Onsem
Nov 11 at 20:06

1

You must be calling Solution(), but you should be calling Solution(nums, target)
– JacobIRR
Nov 11 at 20:06

1

Welcome to stackoverflow! Please take the tour and read the help pages. Helpful may be "how to ask good questions" and this question checklist. Users here are way more ready to help if you provide minimal, complete, and verifiable example with some input and the desired output.
– Mikhail Stepanov
Nov 11 at 20:48

add a comment |

I'm solving leetcode's two sums and I get error __init__() missing 2 positional arguments

Here is my code:

class Solution(object):

    def __init__(self, nums, target):

        self.nums = nums

        self.target = target

    def twoSum(self):

        for i in range(0, len(self.nums)):

            j = self.target-self.nums[i]

            for a in range(i+1,len(self.nums)):

                if self.nums[a]==j:

                    return "(%d, %d)" % (self.nums[i], self.nums[a])

edited Nov 12 at 4:59

Dinko Pehar

1,0372324

asked Nov 11 at 20:04

Quoc Anh Nguyen

I'm solving leetcode's two sums and I get error __init__() missing 2 positional arguments

Here is my code:

class Solution(object):

    def __init__(self, nums, target):

        self.nums = nums

        self.target = target

    def twoSum(self):

        for i in range(0, len(self.nums)):

            j = self.target-self.nums[i]

            for a in range(i+1,len(self.nums)):

                if self.nums[a]==j:

                    return "(%d, %d)" % (self.nums[i], self.nums[a])

python constructor arguments

edited Nov 12 at 4:59

Dinko Pehar

1,0372324

asked Nov 11 at 20:04

Quoc Anh Nguyen

edited Nov 12 at 4:59

Dinko Pehar

1,0372324

asked Nov 11 at 20:04

Quoc Anh Nguyen

edited Nov 12 at 4:59

Dinko Pehar

1,0372324

edited Nov 12 at 4:59

Dinko Pehar

1,0372324

edited Nov 12 at 4:59

Dinko Pehar

1,0372324

asked Nov 11 at 20:04

Quoc Anh Nguyen

asked Nov 11 at 20:04

Quoc Anh Nguyen

asked Nov 11 at 20:04

Quoc Anh Nguyen

1

You probably should "shift" your parameters to the twoSum function, it has not much to do with how you define your class, more how it is "used".
– Willem Van Onsem
Nov 11 at 20:06

1

You must be calling Solution(), but you should be calling Solution(nums, target)
– JacobIRR
Nov 11 at 20:06

1

Welcome to stackoverflow! Please take the tour and read the help pages. Helpful may be "how to ask good questions" and this question checklist. Users here are way more ready to help if you provide minimal, complete, and verifiable example with some input and the desired output.
– Mikhail Stepanov
Nov 11 at 20:48

add a comment |

1

You probably should "shift" your parameters to the twoSum function, it has not much to do with how you define your class, more how it is "used".
– Willem Van Onsem
Nov 11 at 20:06

1

You must be calling Solution(), but you should be calling Solution(nums, target)
– JacobIRR
Nov 11 at 20:06

1

Welcome to stackoverflow! Please take the tour and read the help pages. Helpful may be "how to ask good questions" and this question checklist. Users here are way more ready to help if you provide minimal, complete, and verifiable example with some input and the desired output.
– Mikhail Stepanov
Nov 11 at 20:48

You probably should "shift" your parameters to the twoSum function, it has not much to do with how you define your class, more how it is "used".
– Willem Van Onsem
Nov 11 at 20:06

You must be calling Solution(), but you should be calling Solution(nums, target)
– JacobIRR
Nov 11 at 20:06

Welcome to stackoverflow! Please take the tour and read the help pages. Helpful may be "how to ask good questions" and this question checklist. Users here are way more ready to help if you provide minimal, complete, and verifiable example with some input and the desired output.
– Mikhail Stepanov
Nov 11 at 20:48

add a comment |

1 Answer
1

active

oldest

votes

The Solution class is probably missing array and target upon instantiation.

You can make it like so:

class Solution(object):



    def __init__(self, nums, target):

        self.nums = nums

        self.target = target



    def twoSum(self):

        for i in range(0, len(self.nums)):

            j = self.target-self.nums[i]

            for a in range(i+1,len(self.nums)):

                if self.nums[a]==j:

                    return "(%d, %d)" % (self.nums[i], self.nums[a])



 nums = [1,2,3,4,5,6] # Array of numbers

 target = 7 # Target

 s = Solution(nums, target)

 print(s.twoSum())

EDIT:

I runned code in idle. This is what I get for your code:

Idle run

But I found solution online, and it goes like this:

class Solution:

    # @return a tuple, (index1, index2)

    def twoSum(self, num, target):

        length = len(num)

        # use dict: value: index + 1

        # since there is only one solution, the right value must not be duplicated

        dic = {}

        for i in range(0, length):

            val = num[i]

            if (target - val) in dic:

                return (dic[target - val], i + 1)

            dic[val] = i + 1







# test code

num=[2, 7, 11, 15]

t= 26

s = Solution()

print(s.twoSum(num, t))

The solution works in LeetCode interface.

edited Nov 12 at 23:06

answered Nov 11 at 20:17

Dinko Pehar

1,0372324

1

Hi @Dinko Pehar, I did add your part, and Leetcode still displayed the same error. Line 26: TypeError: __init__() missing 2 required positional arguments: 'nums' and 'target'
– Quoc Anh Nguyen
Nov 12 at 20:51

Check edit please
– Dinko Pehar
Nov 12 at 23:06

1

Hi @Dinko Pehar! Thank you so much for your help. I got so much too learn :))
– Quoc Anh Nguyen
Nov 14 at 0:40

add a comment |

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

The Solution class is probably missing array and target upon instantiation.

You can make it like so:

class Solution(object):



    def __init__(self, nums, target):

        self.nums = nums

        self.target = target



    def twoSum(self):

        for i in range(0, len(self.nums)):

            j = self.target-self.nums[i]

            for a in range(i+1,len(self.nums)):

                if self.nums[a]==j:

                    return "(%d, %d)" % (self.nums[i], self.nums[a])



 nums = [1,2,3,4,5,6] # Array of numbers

 target = 7 # Target

 s = Solution(nums, target)

 print(s.twoSum())

EDIT:

I runned code in idle. This is what I get for your code:

Idle run

But I found solution online, and it goes like this:

class Solution:

    # @return a tuple, (index1, index2)

    def twoSum(self, num, target):

        length = len(num)

        # use dict: value: index + 1

        # since there is only one solution, the right value must not be duplicated

        dic = {}

        for i in range(0, length):

            val = num[i]

            if (target - val) in dic:

                return (dic[target - val], i + 1)

            dic[val] = i + 1







# test code

num=[2, 7, 11, 15]

t= 26

s = Solution()

print(s.twoSum(num, t))

The solution works in LeetCode interface.

edited Nov 12 at 23:06

answered Nov 11 at 20:17

Dinko Pehar

1,0372324

1

Hi @Dinko Pehar, I did add your part, and Leetcode still displayed the same error. Line 26: TypeError: __init__() missing 2 required positional arguments: 'nums' and 'target'
– Quoc Anh Nguyen
Nov 12 at 20:51

Check edit please
– Dinko Pehar
Nov 12 at 23:06

1

Hi @Dinko Pehar! Thank you so much for your help. I got so much too learn :))
– Quoc Anh Nguyen
Nov 14 at 0:40

add a comment |

The Solution class is probably missing array and target upon instantiation.

You can make it like so:

class Solution(object):



    def __init__(self, nums, target):

        self.nums = nums

        self.target = target



    def twoSum(self):

        for i in range(0, len(self.nums)):

            j = self.target-self.nums[i]

            for a in range(i+1,len(self.nums)):

                if self.nums[a]==j:

                    return "(%d, %d)" % (self.nums[i], self.nums[a])



 nums = [1,2,3,4,5,6] # Array of numbers

 target = 7 # Target

 s = Solution(nums, target)

 print(s.twoSum())

EDIT:

I runned code in idle. This is what I get for your code:

Idle run

But I found solution online, and it goes like this:

class Solution:

    # @return a tuple, (index1, index2)

    def twoSum(self, num, target):

        length = len(num)

        # use dict: value: index + 1

        # since there is only one solution, the right value must not be duplicated

        dic = {}

        for i in range(0, length):

            val = num[i]

            if (target - val) in dic:

                return (dic[target - val], i + 1)

            dic[val] = i + 1







# test code

num=[2, 7, 11, 15]

t= 26

s = Solution()

print(s.twoSum(num, t))

The solution works in LeetCode interface.

edited Nov 12 at 23:06

answered Nov 11 at 20:17

Dinko Pehar

1,0372324

1

Hi @Dinko Pehar, I did add your part, and Leetcode still displayed the same error. Line 26: TypeError: __init__() missing 2 required positional arguments: 'nums' and 'target'
– Quoc Anh Nguyen
Nov 12 at 20:51

Check edit please
– Dinko Pehar
Nov 12 at 23:06

1

Hi @Dinko Pehar! Thank you so much for your help. I got so much too learn :))
– Quoc Anh Nguyen
Nov 14 at 0:40

add a comment |

The Solution class is probably missing array and target upon instantiation.

You can make it like so:

class Solution(object):



    def __init__(self, nums, target):

        self.nums = nums

        self.target = target



    def twoSum(self):

        for i in range(0, len(self.nums)):

            j = self.target-self.nums[i]

            for a in range(i+1,len(self.nums)):

                if self.nums[a]==j:

                    return "(%d, %d)" % (self.nums[i], self.nums[a])



 nums = [1,2,3,4,5,6] # Array of numbers

 target = 7 # Target

 s = Solution(nums, target)

 print(s.twoSum())

EDIT:

I runned code in idle. This is what I get for your code:

Idle run

But I found solution online, and it goes like this:

class Solution:

    # @return a tuple, (index1, index2)

    def twoSum(self, num, target):

        length = len(num)

        # use dict: value: index + 1

        # since there is only one solution, the right value must not be duplicated

        dic = {}

        for i in range(0, length):

            val = num[i]

            if (target - val) in dic:

                return (dic[target - val], i + 1)

            dic[val] = i + 1







# test code

num=[2, 7, 11, 15]

t= 26

s = Solution()

print(s.twoSum(num, t))

The solution works in LeetCode interface.

edited Nov 12 at 23:06

answered Nov 11 at 20:17

Dinko Pehar

1,0372324

The Solution class is probably missing array and target upon instantiation.

You can make it like so:

class Solution(object):



    def __init__(self, nums, target):

        self.nums = nums

        self.target = target



    def twoSum(self):

        for i in range(0, len(self.nums)):

            j = self.target-self.nums[i]

            for a in range(i+1,len(self.nums)):

                if self.nums[a]==j:

                    return "(%d, %d)" % (self.nums[i], self.nums[a])



 nums = [1,2,3,4,5,6] # Array of numbers

 target = 7 # Target

 s = Solution(nums, target)

 print(s.twoSum())

EDIT:

I runned code in idle. This is what I get for your code:

Idle run

But I found solution online, and it goes like this:

class Solution:

    # @return a tuple, (index1, index2)

    def twoSum(self, num, target):

        length = len(num)

        # use dict: value: index + 1

        # since there is only one solution, the right value must not be duplicated

        dic = {}

        for i in range(0, length):

            val = num[i]

            if (target - val) in dic:

                return (dic[target - val], i + 1)

            dic[val] = i + 1







# test code

num=[2, 7, 11, 15]

t= 26

s = Solution()

print(s.twoSum(num, t))

The solution works in LeetCode interface.

edited Nov 12 at 23:06

answered Nov 11 at 20:17

Dinko Pehar

1,0372324

edited Nov 12 at 23:06

answered Nov 11 at 20:17

Dinko Pehar

1,0372324

answered Nov 11 at 20:17

Dinko Pehar

1,0372324

answered Nov 11 at 20:17

Dinko Pehar

1,0372324

1

Hi @Dinko Pehar, I did add your part, and Leetcode still displayed the same error. Line 26: TypeError: __init__() missing 2 required positional arguments: 'nums' and 'target'
– Quoc Anh Nguyen
Nov 12 at 20:51

Check edit please
– Dinko Pehar
Nov 12 at 23:06

1

Hi @Dinko Pehar! Thank you so much for your help. I got so much too learn :))
– Quoc Anh Nguyen
Nov 14 at 0:40

add a comment |

1

Hi @Dinko Pehar, I did add your part, and Leetcode still displayed the same error. Line 26: TypeError: __init__() missing 2 required positional arguments: 'nums' and 'target'
– Quoc Anh Nguyen
Nov 12 at 20:51

Check edit please
– Dinko Pehar
Nov 12 at 23:06

1

Hi @Dinko Pehar! Thank you so much for your help. I got so much too learn :))
– Quoc Anh Nguyen
Nov 14 at 0:40

Hi @Dinko Pehar, I did add your part, and Leetcode still displayed the same error. Line 26: TypeError: __init__() missing 2 required positional arguments: 'nums' and 'target'
– Quoc Anh Nguyen
Nov 12 at 20:51

Check edit please
– Dinko Pehar
Nov 12 at 23:06

Hi @Dinko Pehar! Thank you so much for your help. I got so much too learn :))
– Quoc Anh Nguyen
Nov 14 at 0:40

add a comment |

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