Answer:
// Program is written in C++ Programming Language
// Comments are used for explanatory purpose
// Program starts here
#include<iostream>
using namespace std;
int main ()
{
// Declare Variable
int selection;
// Prompt user to make a selection of medium between air, water or steel.
cout<<"Make Selection"<<'\n'<<"Press 1 for Air"<<'\n'<<"Press 2 for Water"<<'\n'<<"Press 3 for Steel";
cin>>selection;
// Check for entry
if(selection == 1) {
cout<<"You selected Air"<<'\n';
cout<<"The distance travelled by sound wave in air is 1,125 feet in 1 second";
}
else if(selection == 2) {
cout<<"You selected Water"<<'\n';
cout<<"The distance travelled by sound wave in water is 4859 feet in 1 second";
}
else if(selection == 3) {
cout<<"You selected Steel"<<'\n';
cout<<"The distance travelled by sound wave in steel is 19554 feet in 1 second";
}
else
cout<<"Invalid Selection";
return 0;
}
Answer:
sample_str = "Help me pass!"
first_chars = sample_str[0:4]
print('First four character: ', first_chars)
Explanation:
sample_str = "Help me pass!"
first_chars = sample_str[0:4]
H has index 0, e has index 1, l has index 2, p has index 3. the space has an index as well, etc.
Answer:
player1Wins = player1Losses = player2Wins = player2Losses = tieCount = 0
score1 = 10
score2 = 10
if score1>score2:
player1Wins=player1Wins+1
player2Losses=player2Losses+1
print("player1 wins")
elif score2>score1:
player2Wins=player2Wins+1
player1Losses=player1Losses+1
print("player2 wins")
else:
tieCount=tieCount+1
print("tie")
Explanation:
Since your indentation can not be understand what you give us, please try to do it as you see in the answer part.
Although it seems that this is a part of the code, it is normal that you get errors. However, since you keep track of the variables, it is better to initialize the variables that will keep the counts. Since initially, they are 0, you may set them as 0. Also, if you assign the values to the scores, probably you would not get any error. This way, you may test your code as I did.
Other than these, in the else part you do not need to write "score1=score2", because if score1 is not greater than score2 and if score2 is not greater than score1, this already implies that they are equal
