Compilare: main.cpp: In function 'int main()': main.cpp:82:23: warning: suggest parentheses around '+' inside '>>' [-Wparentheses] cin >> mat[i] + 1; ~~~~~~~^~~ main.cpp:143:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(hsh != start) { ~~~~^~~~~~~~ main.cpp:182:52: warning: narrowing conversion of '((id + 65) - 1)' from 'int' to 'char' inside { } [-Wnarrowing] vis[cur] = {hsh, {id + 'A' - 1, getDir(dir), nr}}; ~~~~~~~~~^~~