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Source Code
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#include <iostream>
#include <type_traits>
#include <cassert>
//second parameter denotes the operator which can be +, - or *
int calc(int numcount, char oper, int numarr[])
{
//do check here that we don't go out of bounds
assert(numcount > 0);
int total = numarr[0];
// do the operatations for all the numbers in the array
for (int i = 1; i < numcount; i++){
total = (oper == '-') * (total - numarr[i]) +
(oper == '+') * (total + numarr[i]) +
(oper == '*') * (total * numarr[i]);
}
return total;
}
int main()
{
int arr[] = {1,2,3,4,5,6};
std::cout << calc(6, '+', arr) << std::endl; //prints 21
std::cout << calc(6, '-', arr) << std::endl; //prints -19
std::cout << calc(6, '*', arr) << std::endl; //prints 720
}
Compiling Program...
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