Compilare: user.cpp: In function 'int main()': user.cpp:132: warning: format '%ld' expects type 'long int', but argument 3 has type 'int' user.cpp:132: warning: format '%ld' expects type 'long int', but argument 4 has type 'int' user.cpp:132: warning: format '%ld' expects type 'long int', but argument 5 has type 'int' user.cpp:34: warning: 'ymin' may be used uninitialized in this function user.cpp:34: warning: 'xmin' may be used uninitialized in this function