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Aleksandr-060686 [28]
2 years ago
13

Easy coding question, please help.

Computers and Technology
1 answer:
borishaifa [10]2 years ago
5 0

Answers:

What is the index of the last element in the array? stArr1.length()-1

This prints the names in order. How would I print every other value? Change line 4 to: index = index +2

Change line 7 to: i < names.length

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Assume the variable myWord references a string. Write a statement that uses a slicing
givi [52]

Answer:

"myWord[-5:]"

Explanation:

So whenever you slice a string, the syntax in python is expressed as:

string[a:b:c]

where a=start index (this is included in the sliced string)

b = end index (this is excluded from the sliced string)

c = increment

If any of these are included, they are set to default values, where a=0, b=len(string), and c=1.

The increment isn't necessary here, and it's just so you know the syntax a bit more

Anyways, I'm assuming when the question asks to display "the last 5 characters in the string" it means in order? e.g "abcdefghijk" -> "ghijk" and not "abcdefghijk" -> "kjihg"

The last piece of information to know is what a negative index represents.

For example if I have the piece of code

"

string = "hello world"

print(string[-1])

"

This will output "d", and the negative 1 represents the last letter. If you did -2, it would output the 2nd to last letter and so on.

So to print the last 5 characters, we simply use the -5 as the starting index.  

"

string = "hello world"

print(string[-5:])

"

This will print "world" or in other words, the last 5 letters. The reason for this is because the -5 in the first spot means the starting index is the 5th to last letter, and when you have the : after the -5, this is the way of telling python you're slicing the string, and not indexing 1 character. You don't need to include another value after that, because it will default to the last index of the string, or more specifically the last index + 1, since the last index is still included.

So the last thing to know, is that if the string isn't greater than 5 characters, it just prints the entire string, and no errors are raised. You can test this out your self as well. So whenever you have a string that's less than 5 characters the entire string is outputted.

3 0
1 year ago
Write a program in C++ to implement bubblesort using the swap function ?
marishachu [46]

C++ program for implementation of Bubble sort  

#include <bits/stdc++.h>  

using namespace std;  

 void swap(int *x, int *y)  /*Defining Swap function of void return type*/

{  

  int temp = *x;  //Swaping the values  

   *x = *y;  

   *y = temp;  

}  

void bubbleSort(int array[], int n) /*Defining function to implement bubbleSort  */

{  

  int i, j;  

  for (i = 0; i < n-1; i++)      

      for (j = 0; j < n-i-1; j++)  /*The last i components are already in location  */

      if (array[j] > array[j+1])  

          swap(&array[j], &array[j+1]);  //Calling swap function

}  

int main()  //driver function

{  

   int array[] = {3, 16, 7, 2, 56, 67, 8}; //Input array  

   int n = sizeof(array)/sizeof(array[0]);  //Finding size of array

   bubbleSort(array, n); //Function calling  

   cout<<"Sorted array: \n";  

   for (int i = 0; i < n; i++)  //printing the sorted array

       cout << array[i] << " ";  

   cout << endl;  

 return 0;  

}  

<u>Output</u>

Sorted array:  

2 3 7 8 16 56 67

3 0
3 years ago
If you want to refine your google search results by date which option should you use
jeka57 [31]
You should use the Tools option and then click Anytime and then select  custom range
7 0
3 years ago
Read 2 more answers
How is a microprocessor different from an integrated circuit?
pychu [463]

Answer:

Explanation:

Microprocessors are faster, smaller and less expensive than integrated circuits. ... Microprocessors control the flow of electrons and integrated circuits control the flow of protons.

6 0
2 years ago
Which option helps you choose the design of a slide in a presentation?
stich3 [128]

Answer:

What are the options?

Explanation:

4 0
2 years ago
Read 2 more answers
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