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3 years ago

What is the problem, if any, with the following code?The desired output is [3,19].

Computers and Technology

1 answer:

vfiekz [6]3 years ago

8 0

Answer: You need a temporary variable to hold the value 3

Explanation:

So, aList[0] is 3 and aList[1] is 19, if it will be as it is you litteraly say to the compiler to change aList[0] to aList[1] at this moment aList[0] is 19 and aList[1] also is 19 and if you try to change aList[1] to aList[0] it will not change its value because they are the same.

You need temp variable to keep one of the values.

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insens350 [35]

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Explanation:

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3 years ago

Suppose that the tuition for a university is $10,000 this year and increases 4% every year. In one year, the tuition will be $10

seropon [69]

Answer:

The programming language is not stated; however, I'll answer using Python programming language (See attachment for proper format)

tuition = 10000

rate = 0.04

for i in range(1,15):

tuition = tuition + tuition * rate

if i <= 10:

print("Year "+str(i)+" tuition:",end=" ")

print(round(tuition,2))

if i == 14:

print("Tuition 4th year after:",end=" ")

print(round(tuition,2))

Explanation:

The first 2 lines initializes tuition and rate to 10000 and 0.04 respectively

tuition = 10000

rate = 0.04

The next line iterates from year 1 to year 14

for i in range(1,15):

This line calculates the tuition for each year

tuition = tuition + tuition * rate

The next 3 lines prints the tuition for year 1 to year 10

if i <= 10:

print("Year "+str(i)+" tuition:",end=" ")

print(round(tuition,2))

The next 3 lines prints the tuition at the 4th year after year 10 (i.e. year 14)

if i == 14:

print("Tuition 4th year after:",end=" ")

print(round(tuition,2))

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3 years ago

How do you change the Background image or picture on Windows desktop?

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3 years ago

9.11: Array Expander

vodka [1.7K]

The Array Expander is an illustration of arrays and functions.

Arrays are variables that stores multiple values
Functions are named statements that are executed when called

<h3>The Array Expander program </h3>

The Array Expander program written in C++, where comments are used to explain each action is as follows:

#include <iostream>

using namespace std;

//This declares the Array Expander function

int* ArrayExpander(int *oldArr, int size){

//This declares the new array

int *newArr = new int[size * 2];

//This iteration sets values into the new array

for (int i = 0; i < size * 2; i++) {

if(i < size){

*(newArr+i) = *(oldArr+i);

}

else{

*(newArr+i) = 0;

}

//This returns a pointer to the new array

return newArr;

}

//The main method begins here

int main(){

//This declares the length of the array, N

int N;

//This gets input for N

cin>>N;

int initArr[N];

//If N is between 1 and 50

if(N > 0 && N <=50){

//This iteration gets values for the array

for(int i = 0; i<N; i++){

cin>>initArr[i];

}

//This calls the Array Expander function

int *ptr = ArrayExpander(initArr, N);

//This iteration prints the elements of the new array

for (int i = 0; i < N*2; i++) {

cout << ptr[i] << " ";

}

return 0;

}