Compilare: user.cpp: In function 'int drum()': user.cpp:32: warning: comparison between signed and unsigned integer expressions user.cpp:21: warning: unused variable 'x' user.cpp: In function 'int main()': user.cpp:52: warning: format '%d' expects type 'int*', but argument 2 has type 'short int*' user.cpp:52: warning: format '%d' expects type 'int*', but argument 3 has type 'short int*' user.cpp:52: warning: format '%d' expects type 'int*', but argument 4 has type 'short int*' user.cpp:52: warning: format '%d' expects type 'int*', but argument 5 has type 'short int*' user.cpp:100: warning: comparison between signed and unsigned integer expressions