Question

in c++ language

1.Re-write the following for loop statement by using a while loop statement:

int sum = 0;

for(int i=0;i<=1000;i++){

                sum+=i;
}

1 (b). Following is the main () function of a program. The program asks a user to enter 150 integers and print the largest integer user entered.

int main()

{

   int score, highest;

            //missing portion of the program

            return 0;

   }

1(c). Find the missing portion of the following code, so the program will display a graph as following:

1: *

2: * *

3: * * *

4: * * * *

5: * * * * *

int i=1;

while(i<=5){

             cout<<i<<": ";

             //missing statement

cout<<endl;

             i++;

        }

1 (d). Write a do-while loop statement that displays “Good Morning!” 5 times.

1(e). Following is the main () function of a program. The program asks a user to enter an integer that is greater than or equal to 3, then list all the multiples of 3 that are less than or equal to that integer. For example, if the integer that a user entered was 16, then your program should print out following numbers: 3, 6, 9, 12, 15. Please complete the missing part of the main () function:

int main()

{

   int n;

   cout<<”Please enter an integer that is greater than or equal to 3: “;

   cin>>n;

            //missing portion of the program

            return 0;

   }

1(f). Write a statement or statements that displays the ACSII code of character ‘&’

Answer 1

1 ) while loop:

int sum=0;
int i=0;
while(i<=1000)
{
sum+=i;
i++;
}

1 b) Largest integer user entered

#include<iostream>
using namespace std;

int main()
{
int score, highest;
  
for(int i=1;i<=150;i++)
{
cout<<"Enter score"<<i<<": ";
cin>>score;
if(i==1)
{
highest=score;
}
if(highest<score)
{
highest=score;
}
}
  
cout<<"Largest integer user entered: "<<highest<<endl;
return 0;
}

1 c) Display a graph:

#include<iostream>
using namespace std;

int main()
{
int i=1;
while(i<=5)
{
cout<<i<<": ";
for(int j=1;j<=i;j++)
{
cout<<"*";
}
cout<<endl;
i++;
}
return 0;
}

1 d) Print "Good Morning!" 5 times using do...while loop

#include<iostream>
using namespace std;

int main()
{
int i=1;
do
{
cout<<i<<". Good Morning!"<<endl;
i++;
}while(i!=6);
  
return 0;
}

1(e): Multiples of 3

#include<iostream>
using namespace std;

int main()
{
int n;
cout<<"Please enter an integer that is greater than or equal to 3: ";
cin>>n;

if(n>=3)
{
  cout<<"Multiples of 3: "<<endl;
for(int i=1;i<=n;i++)
{
if(i%3==0)
{
cout<<i<<"\t";
}
}
}
else
{
cout<<"Integer has to be greater or equal to 3!";
}
return 0;
}

1(f). Display the ASCII code of character '&':

#include<iostream>
using namespace std;

int main()
{
char ch;
ch='&';
cout<<"The ASCII code of '&' character is "<<(int)ch<<endl;
return 0;
}