Compilare: main.cpp: In function 'int add(unsigned int)': main.cpp:25:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (i < n && myhash[nr][i].numar != x) main.cpp:28:32: warning: narrowing conversion of 'x' from 'unsigned int' to 'int' inside { } [-Wnarrowing] myhash[nr].push_back({x, 1}); ^ main.cpp: In function 'bool del(unsigned int)': main.cpp:47:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (i < n && myhash[nr][i].numar != x)