Compilare: main.cpp: In function 'int calcul(char*)': main.cpp:32:24: warning: array subscript has type 'char' [-Wchar-subscripts] return a[ s[0] ][ s[1] ]; ^ main.cpp:32:32: warning: array subscript has type 'char' [-Wchar-subscripts] return a[ s[0] ][ s[1] ]; ^ main.cpp:42:27: warning: array subscript has type 'char' [-Wchar-subscripts] int aux = a[ s[i] ][ s[i+1] ] + calcul(t); ^ main.cpp:42:37: warning: array subscript has type 'char' [-Wchar-subscripts] int aux = a[ s[i] ][ s[i+1] ] + calcul(t); ^