Compilare: user.cpp: In function 'void prep(int)': user.cpp:68: warning: comparison between signed and unsigned integer expressions user.cpp:72: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int main()': user.cpp:89: warning: comparison between signed and unsigned integer expressions user.cpp:91: warning: format '%d' expects type 'int*', but argument 2 has type 'short int*' user.cpp:91: warning: format '%d' expects type 'int*', but argument 3 has type 'short int*' user.cpp:97: warning: comparison between signed and unsigned integer expressions user.cpp:100: warning: comparison between signed and unsigned integer expressions user.cpp:103: warning: comparison between signed and unsigned integer expressions user.cpp:111: warning: comparison between signed and unsigned integer expressions user.cpp:112: warning: comparison between signed and unsigned integer expressions user.cpp:114: warning: comparison between signed and unsigned integer expressions user.cpp:116: warning: comparison between signed and unsigned integer expressions user.cpp:135: warning: comparison between signed and unsigned integer expressions user.cpp:136: warning: comparison between signed and unsigned integer expressions