Compilare: user.cpp:28: warning: this decimal constant is unsigned only in ISO C90 user.cpp:28: warning: this decimal constant is unsigned only in ISO C90 user.cpp:32:3: warning: no newline at end of file user.cpp: In function 'unsigned int search(unsigned int, unsigned int)': user.cpp:9: warning: comparison between signed and unsigned integer expressions user.cpp:9: warning: comparison between signed and unsigned integer expressions user.cpp:14: warning: comparison between signed and unsigned integer expressions user.cpp:14: warning: comparison between signed and unsigned integer expressions user.cpp:18: warning: comparison between signed and unsigned integer expressions user.cpp:18: warning: comparison between signed and unsigned integer expressions user.cpp:22: warning: comparison between signed and unsigned integer expressions user.cpp:22: warning: comparison between signed and unsigned integer expressions user.cpp:24: warning: control reaches end of non-void function