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Comparing <tt>struct</tt>s.
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Engine
Template / Reference solution
 
#include <iostream>
#include <iomanip>
using namespace std;
struct Location { // define a new data type, Location
   int row;       // each Location has a row
   int col;       // each Location has a col
};
int main() {
   cout << boolalpha;
   Location home; // construct a Location
   home.row = 5; home.col = 10;
   Location north_of_home = home; // copy it
   north_of_home.row -= 1;
   Location home_again = north_of_home; // copy it
   home_again.row += 1;
   // compare them
\[
   // if you did this a lot, you might want to make a function!
   cout << (home.row == north_of_home.row &&
            north_of_home.row == north_of_home.col) << endl;
   cout << (home.row == home_again.row &&
            home.col == home_again.col) << endl;
\show:
   cout << (home == north_of_home) << endl;
   cout << (home == home_again) << endl;
]\
}
C++ test suite
json list of stdin/args tests
e.g. [{"stdin":"hi", "args":["4", "5"]},
{"stdin":"noargs"}]

to just run once with no input use [{}]
 
[
   {}
]
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