Compilare: user.cpp: In function ‘void adunare(char*, char*, char*)’: user.cpp:10:23: warning: variable ‘aux’ set but not used [-Wunused-but-set-variable] int i,j,li,lj,k,s,aux; ^ user.cpp: In function ‘int main()’: user.cpp:59:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[1][j][0]=j+'0'; ^ user.cpp:64:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[i][j][0]='1'; ^ user.cpp:66:31: warning: array subscript has type ‘char’ [-Wchar-subscripts] adunare(a[i-1][j],a[i][j-1],a[i][j]); ^ user.cpp:66:49: warning: array subscript has type ‘char’ [-Wchar-subscripts] adunare(a[i-1][j],a[i][j-1],a[i][j]); ^