Compilare: user.cpp: In function 'void output(long int, long int)': user.cpp:21: warning: comparison between signed and unsigned integer expressions user.cpp:21: warning: format '%ld' expects type 'long int', but argument 2 has type 'unsigned int' user.cpp: In function 'int main()': user.cpp:49: warning: comparison between signed and unsigned integer expressions user.cpp:77: warning: comparison between signed and unsigned integer expressions user.cpp:93: warning: format '%ld' expects type 'long int', but argument 2 has type 'unsigned int' user.cpp: In function 'long int bsearch(long int)': user.cpp:17: warning: control reaches end of non-void function