The do … while loop in the following program is supposed to read some numbers until it reaches a sentinel (in this case, -1). It is suppose to add the double of each of the numbers except for the sentinel. If the data looks like: 12 5 30 48 -1 the program does not add the numbers correctly. Correct the program so that it adds the double of the numbers correctly. #include using namespace std; int main() { int total = 0, count =0, number; do { cin >> number; total = total + (number * 2); count ++; } while (number != -1); cout << “The number of the data read is” << count << endl; cout << “The sum of the numbers entered is “ << total << endl; return 0; }
Types of Loop
Loops are the elements of programming in which a part of code is repeated a particular number of times. Loop executes the series of statements many times till the conditional statement becomes false.
Loops
Any task which is repeated more than one time is called a loop. Basically, loops can be divided into three types as while, do-while and for loop. There are so many programming languages like C, C++, JAVA, PYTHON, and many more where looping statements can be used for repetitive execution.
While Loop
Loop is a feature in the programming language. It helps us to execute a set of instructions regularly. The block of code executes until some conditions provided within that Loop are true.
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The do … while loop in the following program is supposed to read some numbers until it reaches a sentinel (in this case, -1). It is suppose to add the double of each of the numbers except for the sentinel. If the data looks like:
12 5 30 48 -1
the program does not add the numbers correctly. Correct the program so that it adds the double of the numbers correctly.
#include <iostream>
using namespace std;
int main()
{
int total = 0, count =0, number;
do
{
cin >> number;
total = total + (number * 2);
count ++;
}
while (number != -1);
cout << “The number of the data read is” << count << endl;
cout << “The sum of the numbers entered is “ << total
<< endl;
return 0;
}
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