Compilare: user.cpp: In function ‘int tabela(int, int, unsigned int)’: user.cpp:9:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (l<=lat&&c<=lat) ^ user.cpp:9:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (l<=lat&&c<=lat) ^ user.cpp:11:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (l<=lat&&c>lat) ^ user.cpp:11:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (l<=lat&&c>lat) ^ user.cpp:13:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (l>lat&&c<=lat) ^ user.cpp:13:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (l>lat&&c<=lat) ^ user.cpp:15:1: warning: control reaches end of non-void function [-Wreturn-type] } ^