Compilare: user.cpp: In function ‘int tabela(int, int, unsigned int)’: user.cpp:10:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (l<=lat && c<=lat) ^ user.cpp:10:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (l<=lat && c<=lat) ^ user.cpp:12:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (l<=lat && c>lat) ^ user.cpp:12:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (l<=lat && c>lat) ^ user.cpp:14:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ( l>lat && c<=lat) ^ user.cpp:14:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ( l>lat && c<=lat) ^ user.cpp:16:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ( l>lat && c>lat) ^ user.cpp:16:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ( l>lat && c>lat) ^ user.cpp:18:1: warning: control reaches end of non-void function [-Wreturn-type] } ^