How do you print the sum of 3 numbers in C++?

CPP program to read three integers and print their sum

1. using namespace std;
2. int main() {
3. int a, b, c;
4. cin>>a>>b>>c;
5. cout<<(a+b+c);
6. return 0;

How do you write a program with 3 numbers average?

To compute the average of three given numbers using C

1. #include
2. #include
3. int n1,n2,n3;
4. float avg;
5. printf(“\nENTER THREE NUMBERS: ” );
6. scanf(“\%d \%d \%d”,&n1,&n2,&n3);
7. avg=(n1+n2+n3)/3;
8. printf(“\nAVERAGE: \%0.2f”,avg);

How do you find the average of numbers in an array C++?

Algorithm to find average of N numbers stored in an array Using for loop, we will traverse inputArray from array index 0 to N-1. For any index i (0<= i <= N-1), add the value of element at index i to sum. sum = sum + inputArray[i]; After termination of for loop, sum will contain the sum of all array elements.

How do you calculate average in C++?

Average of numbers is calculated by adding all the numbers and then dividing the sum by count of numbers available.

How do you get total in C++?

You can try: int sum = startingNumber; for (int i=0; i < positiveInteger; i++) { sum += i; } cout << sum; But much easier is to note that the sum 1+2+… +n = n*(n+1) / 2 , so you do not need a loop at all, just use the formula n*(n+1)/2 .

How do you find the average of a grade in C++?

Find Grade of Student based on Marks obtained in 5 Subjects. Find Grade of Student based on Marks obtained in all Subjects using user-defined Function….C++ Program to Calculate Grade of Student.

Average Mark Range	Grade
41-50	C2
33-40	D
21-32	E1
0-20	E2