Response:
Correct script pertaining to the previous query that showcases the output.
for x, y in country_pop.items(): #this for loop iterates through the list items.
print(str(x) + " has " + str(y) + " people") #output function to display the values.
Result:
- This code is written in Python and produces the output required by the previous question.
Clarification:
- The code in the previous question is intended for Python language to show the output, however, it has inaccuracies.
- A 'for' loop is necessary, which will allow the items to be displayed one at a time.
- The list presented is structured as key-value pairs, thus the use of the 'items' function from Python dictionaries is essential to present the list items.
- Additionally, two variables must be established in the for loop, one representing the key and the other representing the value.
Response:
Written in Python
G = 6.673 *pow(10,-11)
M = 5.98 *pow(10,24)
d = float(input("Enter distance: "))
g = (G * M)/(pow(d,2))
print("Calculated gravity acceleration: "+str(g))
Explanation:
The following line sets the gravitational constant
G = 6.673 *pow(10,-11)
This line establishes the mass of the Earth
M = 5.98 *pow(10,24)
This prompts the user to input the object's distance
d = float(input("Enter distance: "))
This calculates the gravity exerted on the object
g = (G * M)/(pow(d,2))
This line outputs the gravity acceleration without rounding
print("Calculated gravity acceleration: "+str(g))
Answer:
#include <iostream>
using namespace std;
class Digits
{
public:
int num;
int read() //method to read num from user
{
cout<<"Enter number(>0)\n";
cin>>num;
return num;
}
int digit_count(int num) //method to count number of digits of num
{
int count=0;
while(num>0) //loop till num>0
{
num/=10;
count++; //counter which counts number of digits
}
return count;
}
int countDigits(int num) //method to return remainder
{
int c=digit_count(num); //calls method inside method
return num%c;
}
};
int main()
{
Digits d; //object of class Digits is created
int number=d.read(); //num is read from user
cout<<"\nRemainder is: "<<d.countDigits(number); //used to find remainder
return 0;
}
Output:
Enter number(>0)
343
Remainder is: 1
Explanation:
The program has a logical error that needs rectification. A correctly structured program calculates the remainder when a number is divided by the count of its digits. A class named Digits is created, consisting of the public variable 'num' and methods for reading input, counting digits, and calculating the remainder.
- read() - This function asks the user to enter the value for 'num' and returns it.
- digit_count() - This function accepts an integer and counts how many digits it has, incrementing a counter until 'num' is less than or equal to 0. It ultimately returns the digit count.
- countDigits() - This function takes an integer and delivers the remainder from dividing that number by its digit count. The digit count is computed using the 'digit_count()' method.
Finally, in the main function, a Digits object is instantiated, and its methods are utilized to produce an output.
