Algorithm

1. Declare Variables:
        Declare three integer variables: number1, number2, and sum.
    2. User Input:
        Display a message to the user prompting them to enter two integers.
        Use scanf to read two integers from the user and store them in the variables number1 and number2.
    3. Calculate Sum:
        Add number1 and number2 and store the result in the variable sum.
    4. Display Result:
        Print the values of number1, number2, and sum using printf. The format specifier %d is used to print integers.
        Display the sum in the format: number1 + number2 = sum.
    5. Return Statement:
        Use return 0; to indicate successful execution of the program to the operating system.

Code Examples

#1 Code Example Program to Add Two Integers

Code - C Programming

#include <stdio.h>
int main() {    

    int number1, number2, sum;
    
    printf("Enter two integers: ");
    scanf("%d %d", &number1, &number2);

    // calculate the sum
    sum = number1 + number2;      
    
    printf("%d + %d = %d", number1, number2, sum);
    return 0;
}
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Output

x
–
+
cmd
Enter two integers: 12
11
12 + 11 = 23

#2 Code Example with C Programming User Input

Code - C Programming

printf("Enter two integers: ");
scanf("%d %d", &number1, &number2);
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Output

x
–
+
cmd
Enter two integers: 12
11
12 + 11 = 23

#3 Code Example with Calculate Sum in C programing

Code - C Programming

sum = number1 + number2;
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Output

x
–
+
cmd
Enter two integers: 12
11
12 + 11 = 23

#4 Code Example with C Programming

Code - C Programming

printf("%d + %d = %d", number1, number2, sum);
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Output

x
–
+
cmd
Enter two integers: 12
11
12 + 11 = 23
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Demonstration

C programing Example  to add two integers using functions-DevsEnv

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