Compilare: main.cpp: In function 'void solve()': main.cpp:22:52: warning: array subscript has type 'char' [-Wchar-subscripts] longest[i] = 1 + lit[a[i][strlen(a[i]) - 1]]; ^ main.cpp:23:20: warning: array subscript has type 'char' [-Wchar-subscripts] lit[a[i][0]] = max(lit[a[i][0]], longest[i]); ^ main.cpp:23:39: warning: array subscript has type 'char' [-Wchar-subscripts] lit[a[i][0]] = max(lit[a[i][0]], longest[i]); ^ main.cpp:20:12: warning: 'pozstart' may be used uninitialized in this function [-Wmaybe-uninitialized] int i, pozstart, last; ^~~~~~~~