Borderou de evaluare (job #301371)

Compilare: user.cpp: In function ‘int main()’: user.cpp:57:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:58:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:62:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:63:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:67:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:68:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:69:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:70:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:8:63: warning: unused variable ‘j’ [-Wunused-variable]