Compilare: main.cpp: In function 'int main()': main.cpp:33:38: warning: array subscript has type 'char' [-Wchar-subscripts] 33 | codA1 = (codA1 * 73 + cod[a[i]]) % P; | ~~~^ main.cpp:34:38: warning: array subscript has type 'char' [-Wchar-subscripts] 34 | codA2 = (codA2 * 73 + cod[a[i]]) % Q; | ~~~^ main.cpp:35:38: warning: array subscript has type 'char' [-Wchar-subscripts] 35 | codB1 = (codB1 * 73 + cod[b[i]]) % P; | ~~~^ main.cpp:36:38: warning: array subscript has type 'char' [-Wchar-subscripts] 36 | codB2 = (codB2 * 73 + cod[b[i]]) % Q; | ~~~^ main.cpp:50:38: warning: array subscript has type 'char' [-Wchar-subscripts] 50 | codB1 = ((codB1 - cod[b[i - n]] * p1 % P + P) * 73 + cod[b[i]]) % P; | ~~~~~~~^ main.cpp:50:69: warning: array subscript has type 'char' [-Wchar-subscripts] 50 | codB1 = ((codB1 - cod[b[i - n]] * p1 % P + P) * 73 + cod[b[i]]) % P; | ~~~^ main.cpp:51:38: warning: array subscript has type 'char' [-Wchar-subscripts] 51 | codB2 = ((codB2 - cod[b[i - n]] * p2 % Q + Q) * 73 + cod[b[i]]) % Q; | ~~~~~~~^ main.cpp:51:69: warning: array subscript has type 'char' [-Wchar-subscripts] 51 | codB2 = ((codB2 - cod[b[i - n]] * p2 % Q + Q) * 73 + cod[b[i]]) % Q; | ~~~^