Write a program that first reads in the name of an input file and then reads the input file using the file.readlines() method. T
1 answer:
Answer:
Explanation:
The following is written in Python. It creates the dictionary as requested and prints it out to the output file as requested using the correct format for various shows with the same number of seasons.The output can be seen in the attached picture below.
mydict = {}
with open("file1.txt", "r") as showFile:
for line in showFile:
cleanString = line.strip()
seasons = 0
try:
seasons = int(cleanString)
print(type(seasons))
except:
pass
if seasons != 0:
showName = showFile.readline()
if seasons in mydict:
mydict[seasons].append(showName.strip())
else:
mydict[seasons] = [showName.strip()]
f = open("output.txt", "a")
finalString = ''
for seasons in mydict:
finalString += str(seasons) + ": "
for show in mydict[seasons]:
finalString += show + '; '
f.write(finalString[:-2] + '\n')
finalString = ''
f.close()
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Answer:
The area of the triangle is calculated as thus:
To calculate the perimeter of the triangle, the measurement of the slant height has to be derived;
Let s represent the slant height;
Dividing the triangle into 2 gives a right angled triangle;
The slant height, s is calculated using Pythagoras theorem as thus
The perimeter of the triangle is then calculated as thus;
For the volume of the cone,
when the triangle is spin, the base of the triangle forms the diameter of the cone;
Where
So,
So,
Base on the above illustrations, the program is as follows;
#include<iostream>
#include<cmath>
using namespace std;
void CalcArea(double b, double h)
{
//Calculate Area
double Area = 0.5 * b * h;
//Print Area
cout<<"Area = "<<Area<<endl;
}
void CalcPerimeter(double b, double h)
{
//Calculate Perimeter
double Perimeter = 2 * sqrt(pow(h,2)+pow((0.5 * b),2)) + b;
//Print Perimeter
cout<<"Perimeter = "<<Perimeter<<endl;
}
void CalcVolume(double b, double h)
{
//Calculate Volume
double Volume = (1.0/3.0) * (22.0/7.0) * pow((0.5 * b),2) * h;
//Print Volume
cout<<"Volume = "<<Volume<<endl;
}
int main()
{
double b, h;
//Prompt User for input
cout<<"Base: ";
cin>>b;
cout<<"Height: ";
cin>>h;
//Call CalcVolume function
CalcVolume(b,h);
//Call CalcArea function
CalcArea(b,h);
//Call CalcPerimeter function
CalcPerimeter(b,h);
return 0;
}