Calculator
public cpp v1 · immutable#include <iostream>using namespace std;int main (void) {double x,y,r;char c;cin>>x>>c>>y;if (c == 'x') r=x*y; else if (c == '+') r=x+y; else if (c == '-') r=x-y; else r=x/y;cout<<x<<c<<y<<"="<<r<<endl;return 0;}