Compilare: main.cpp: In function 'int main()': main.cpp:56:24: warning: array subscript has type 'char' [-Wchar-subscripts] lg[v[1][lg_cuv - 1]] = 1; ^ main.cpp:58:25: warning: array subscript has type 'char' [-Wchar-subscripts] lit[v[1][lg_cuv - 1]] = 1; ^ main.cpp:64:23: warning: array subscript has type 'char' [-Wchar-subscripts] if( lg[v[i][0]] + 1 > lg[v[i][lg_cuv - 1]]) ^ main.cpp:64:50: warning: array subscript has type 'char' [-Wchar-subscripts] if( lg[v[i][0]] + 1 > lg[v[i][lg_cuv - 1]]) ^ main.cpp:66:36: warning: array subscript has type 'char' [-Wchar-subscripts] lg[v[i][lg_cuv - 1]] = lg[v[i][0]] + 1; ^ main.cpp:66:50: warning: array subscript has type 'char' [-Wchar-subscripts] lg[v[i][lg_cuv - 1]] = lg[v[i][0]] + 1; ^ main.cpp:67:37: warning: array subscript has type 'char' [-Wchar-subscripts] poz[i] = lit[v[i][0]]; ^ main.cpp:68:37: warning: array subscript has type 'char' [-Wchar-subscripts] lit[v[i][lg_cuv - 1]] = i; ^ main.cpp:32:9: warning: unused variable 'len' [-Wunused-variable] int len = 0, i, j, cnt, lg_cuv; ^~~ main.cpp:32:21: warning: unused variable 'j' [-Wunused-variable] int len = 0, i, j, cnt, lg_cuv; ^ main.cpp:32:24: warning: unused variable 'cnt' [-Wunused-variable] int len = 0, i, j, cnt, lg_cuv; ^~~