Compilare: main.cpp: In function 'int main()': main.cpp:36:41: warning: array subscript has type 'char' [-Wchar-subscripts] 36 | hsh1[i] = hsh1[i-1] * P + r[a[i]]; | ^ main.cpp:38:41: warning: array subscript has type 'char' [-Wchar-subscripts] 38 | hsh2[i] = hsh2[i-1] * P + r[b[i]]; | ^