Compilare: user.cpp: In function 'void read()': user.cpp:9: warning: format '%d' expects type 'int*', but argument 3 has type 'long long unsigned int*' user.cpp: In function 'int find2(int, int, int)': user.cpp:67: warning: comparison between signed and unsigned integer expressions user.cpp:70: warning: comparison between signed and unsigned integer expressions user.cpp:73: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void write(int, int)': user.cpp:94: warning: unused variable 's' user.cpp:85: warning: array subscript is above array bounds