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  1. #include <iostream>
  2. using namespace std ;
  3.  
  4.  
  5.  
  6.  
  7.  
  8. double S_Area(double l) {
  9. return l*l ;
  10. }
  11.  
  12. int main () {
  13.  
  14. double l ;
  15. cin >> l ;
  16. cout << "Square Area = " << S_Area(l) << endl;
  17. return 0 ;
  18. }
Success #stdin #stdout 0.01s 5320KB
stdin
3
stdout
Square Area = 9