Compilare: user.cpp: In function ‘int main()’: user.cpp:31:9: warning: unused variable ‘xMin’ [-Wunused-variable] double xMin=1e10 , xMax=-1e10 , yMin=1e10 , yMax=-1e10; ^ user.cpp:31:21: warning: unused variable ‘xMax’ [-Wunused-variable] double xMin=1e10 , xMax=-1e10 , yMin=1e10 , yMax=-1e10; ^ user.cpp:31:34: warning: unused variable ‘yMin’ [-Wunused-variable] double xMin=1e10 , xMax=-1e10 , yMin=1e10 , yMax=-1e10; ^ user.cpp:31:46: warning: unused variable ‘yMax’ [-Wunused-variable] double xMin=1e10 , xMax=-1e10 , yMin=1e10 , yMax=-1e10; ^