Add an additional calculation to the calculator. This calculation should sum all of the integers between the two numbers the user entered (truncating the numbers if the user entered a decimal). For example, if the user entered 5.2 and 8.7 then the calculator should sum all of the values between 5 and 8 (i.e. 5 + 6 + 7 + 8). Remember that if you store a double value in an int variable it is automatically truncated.

#include

using namespace std;

int main() {

// your code goes here

double operend1;

double operend2;

int operation;

cout <<" ";

cout<<"welcome to the simple calculator program. ";

cout<< "Enter the two real value and then select the mathematical operation apply to them. ";

while(true){

cout<<"Enter the first value : ";

cin>>operend1;

cout<<"Enter the second value : ";

cin>>operend2;

cout<<"Enter the operation(1-add, 2-subtract, 3-multiply, 4-divide, 5 - for sum of all integer between two given numbers) : ";

cin>>operation;

if(operation<1 || operation>5){

cout<<"Invalid operation";

continue;

}

switch(operation){

case 1 : cout<

cout<<" ";

break;

case 2 : cout<

cout<<" ";

break;

case 3 : cout<

cout<<" ";

break;

case 4 : cout<

cout<<" ";

break;

case 5 : int sum=0;

for(int i=operend1; i<=operend2; i++)

sum+=i;

cout<

cout<<" ";

}

int n;

cout<<"do u want to continue? enter 0 to no and 1 for yes : ";

cin>>n;

if(n==1)

continue;

else

break;

}

return 0;

}