Question

write a C program that emulates you with the calculator which can operate with the four operations ( + - / * ) , the program should keep running and asks the user to end or continue use functions to create the calculator part

Answer 1

The following c program emulates the user with calculator.

#include<stdio.h>
typedef long long ll;
ll add(ll x,ll y)
{
return x+y;
}
ll sub(ll x,ll y)
{
return x-y;
}
ll mul(ll x,ll y)
{
return x*y;
}
double div(ll x,ll y)
{
return (1.0*x)/y;
}
int main()
{
ll a,b;
char ch;
while(1)
{
scanf(" %c",&ch);
switch(ch)
{
case '+':scanf("%lld%lld",&a,&b);
printf("%lld\n",add(a,b));
break;
case '-':scanf("%lld%lld",&a,&b);
printf("%lld\n",sub(a,b));
break;
case '*':scanf("%lld%lld",&a,&b);
printf("%lld\n",mul(a,b));
break;
case '/':scanf("%lld%lld",&a,&b);
printf("%0.6lf\n",div(a,b));
break;
default:exit(0);
}
}
}

Here is the sample input and corresponding output:

If you find this helpful please upvote:

CUsersPanical Documents HomeworkLib.exe 45 34 2285714 AA F ING 01:13 AM