An array is a type of variable that can hold several values at once.

One element in a fixed point array is given as if its value is the same as its index. If a value is present, the code will return it; otherwise, it will return -1. We have an array of x unique numbers sorted in ascending order in this. In the following code, we create a function that returns a fixed point integer and returns -1 if there is no fixed point integer. The fixed point index is defined as an index I such that array[i] equals i.

Given a list, the task is to find a fixed point in the given list in Python if the fixed point is present in the given list then print -1.

**Examples:**

**Example1:**

**Input:**

Given List = [19, 24, 25, 3, 81, 144, 600, 900, 225, 4, 9, 1, 16, 49, 23, 49, 25, 10, 25]

**Output:**

The Fixed point present in the given list is [ 3 ]

**Example2:**

**Input:**

Given list = [7 , 8, 45, 19, 21, 23, 6 ,7, 5,]

**Output:**

The Fixed point present in the given list is [ 6 ]

## Program to Find a Fixed Point in a given Array or ListÂ Python

Below are the ways to find a Fixed Point in the given list in Python.

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### Method #1: Using For Loop (Static Input)

**Approach:**

- Give the list as static input and store it in a variable.
- Create a function
**findFixed()**which accepts the given list as an argument and returns -1 if the list does not contain a fixed point else print the fixed point. - Pass the given list as an argument to the findFixed() function.
- Inside the findFixed() function calculate the length of the given list.
- Loop till length of the given list using For loop.
- Check if the element is equal to the index(iterator value of the For loop).
- If it is true then return index.
- Return -1 after the end of the For loop.
- Print the Fixed-point Index
- The Exit of the Program.

**Below is the implementation:**

# Create a function findFixed() which accepts the given list # as an argument and returns -1 # if the list does not contain a fixed point else print the fixed point. def findFixed(gvnlst): # Inside the findFixed() function calculate the length of the given list. lstleng = len(gvnlst) # Loop till length of the given list using For loop. for m in range(lstleng): # Check if the element is equal to the index(iterator value of the For loop). if gvnlst[m] is m: # If it is true then return index. return m # Return -1 after the end of the For loop. return -1 # Give the list as static input and store it in a variable. gvnlst = [19, 24, 25, 3, 81, 144, 600, 900, 225, 4, 9, 1, 16, 49, 23, 49, 25, 10, 25] # Pass the given list as an argument to the findFixed() function. fxdpoint = findFixed(gvnlst) print('The Fixed point present in the given list is [', fxdpoint, ']')

**Output:**

The Fixed point present in the given list is [ 3 ]

### Method #2: Using For Loop (User Input)

**Approach:**

- Give the list as user input using list(),map(),input(),and split() functions.
- Store it in a variable.
- Create a function
**findFixed()**which accepts the given list as an argument and returns -1 if the list does not contain a fixed point else print the fixed point. - Pass the given list as an argument to the findFixed() function.
- Inside the findFixed() function calculate the length of the given list.
- Loop till the length of the given list using For loop.
- Check if the element is equal to the index(iterator value of the For loop).
- If it is true then return index.
- Return -1 after the end of the For loop.
- Print the Fixed-point Index
- The Exit of the Program.

**Below is the implementation:**

# Create a function findFixed() which accepts the given list # as an argument and returns -1 # if the list does not contain a fixed point else print the fixed point. def findFixed(gvnlst): # Inside the findFixed() function calculate the length of the given list. lstleng = len(gvnlst) # Loop till length of the given list using For loop. for m in range(lstleng): # Check if the element is equal to the index(iterator value of the For loop). if gvnlst[m] is m: # If it is true then return index. return m # Return -1 after the end of the For loop. return -1 # Give the list as user input using list(),map(),input(),and split() functions. # Store it in a variable. gvnlst = list(map(int, input( 'Enter some random List Elements separated by spaces = ').split())) # Pass the given list as an argument to the findFixed() function. fxdpoint = findFixed(gvnlst) print('The Fixed point present in the given list is [', fxdpoint, ']')

**Output:**

Enter some random List Elements separated by spaces = 7 8 45 19 21 23 6 7 5 The Fixed point present in the given list is [ 6 ]

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