In this article, we will discuss the concept of the Sum of two integer using without + operator in C
In this post, we are going to learn how to write a program to find the sum of two numbers using without plus operator in C programming language
The program allows the user to enter two integers and then calculates the sum of given numbers using minus operator in C language
Program 1
#include <stdio.h>
#include <stdlib.h>
int main()
{
int num1,num2;
printf("Enter two number for addition:\n");
scanf("%d %d",&num1,&num2);
//get input from user for num1 and num1
int result =num1-(-num2);
//calculate sum of two numbers using minus
printf("Sum of two numbers %d and %d is: %d",num1,num2,result);
//Display result on the screen
getch();
return 0;
}
When the above code is executed, it produces the following result
Enter two number for addition: 1200 2400 Sum of two numbers 1200 and 2400 is: 3600
The program allows the user to enter two integers and then calculates the sum of given numbers using for loop with function in C language
Program 2
#include <stdio.h>
#include <stdlib.h>
int add(int ,int);//function prototype
int main()
{
int n1,n2;//variable declaration
printf("Enter the first number: ");
scanf("%d",&n1);
//get input from user for n1
printf("Enter the second number: ");
scanf("%d",&n2);
//get input from user for n2
printf("Sum of two numbers is: %d",add(n1,n2));
//Calling the function to produce output
getch();
return 0;
}
int add(int num1, int num2){//function definition
int i;
for(i=0; i<num2; i++){
num1++;
}
return num1;
}
When the above code is executed, it produces the following result
Enter the first number: 250 Enter the second number: 340 Sum of two numbers is: 590
The program allows the user to enter two integers and then calculates the sum of given numbers using while loop with function in C language
Program 3
#include <stdio.h>
#include <stdlib.h>
int add(int ,int);
int main()
{
int n1,n2;
printf("Enter the first number: ");
scanf("%d",&n1);
//get input from user for n1
printf("Enter the second number: ");
scanf("%d",&n2);
//get input from user for n2
printf("Addition of two numbers is: %d",add(n1,n2));
//Calling the function to produce output on the screen
getch();
return 0;
}
int add(int num1, int num2){//function definition
int i;
i=0;
while(i<num2){
num1++;
i++;
}
return num1;
} When the above code is executed, it produces the following result
Enter the first number: 135 Enter the second number: 531 Addition of two numbers is: 666
The program allows the user to enter two integers and then calculates the sum of given numbers using increment and decrement operator
Program 4
#include <stdio.h>
#include <stdlib.h>
int add(int ,int);
int main()
{
int n1,n2;
printf("Enter the first number: ");
scanf("%d",&n1);
//get input from user for n1
printf("Enter the second number: ");
//get input from user for n2
scanf("%d",&n2);
printf("adition of two numbers is: %d",add(n1,n2));
//Calling the function and display result on the screen
getch();
return 0;
}
int add(int n1,int n2){//function definition
while(n1>0){
n2++;
n1--;
}
while(n1<0){
n2--;
n1++;
}
return n2;
}
When the above code is executed, it produces the following result
Enter the first number: 455 Enter the second number: 345 Addition of two numbers is: 800
The program allows the user to enter two integers and then calculates the sum of given numbers using bitwise operator in C language
Program 5
#include <stdio.h>
#include <stdlib.h>
int add(int ,int);//function prototype
int main()
{
int n1,n2;
printf("Enter the first number: ");
scanf("%d",&n1);
printf("Enter the second number: ");
scanf("%d",&n2);
printf("Addition of two numbers is: %d",add(n1,n2));
//Calling the function to produce output
getch();
return 0;
}
int add(int num1,int num2){//function definition
while(num2!=0){
int brw =num1 & num2;
num1=num1^num2;
num2=brw<<1;
}
return num1;
}
When the above code is executed, it produces the following result
Enter the first number: 123 Enter the second number: 321 Addition of two numbers is: 444
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