Compilare: user.cpp: In function ‘int main()’: user.cpp:47:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] chSum1[0] = chRank[B[0]]; ^ user.cpp:48:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] chSum2[0] = chRank[B[0]]; ^ user.cpp:49:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] chSum_A1 = chRank[A[0]]; ^ user.cpp:50:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] chSum_A2 = chRank[A[0]]; ^ user.cpp:52:58: warning: array subscript has type ‘char’ [-Wchar-subscripts] chSum1[i] = (alphabet * chSum1[i-1] + chRank[B[i]]) % MOD1; ^ user.cpp:53:58: warning: array subscript has type ‘char’ [-Wchar-subscripts] chSum2[i] = (alphabet * chSum2[i-1] + chRank[B[i]]) % MOD2; ^ user.cpp:54:54: warning: array subscript has type ‘char’ [-Wchar-subscripts] chSum_A1 = (alphabet * chSum_A1 + chRank[A[i]]) % MOD1; ^ user.cpp:55:54: warning: array subscript has type ‘char’ [-Wchar-subscripts] chSum_A2 = (alphabet * chSum_A2 + chRank[A[i]]) % MOD2; ^ user.cpp:61:65: warning: array subscript has type ‘char’ [-Wchar-subscripts] chSum1[i] = (((chSum1[i-1] - ((alphPow1 * chRank[B[i-lA]])%MOD1) + MOD1) % MOD1) * alphabet + chRank[B[i]]) % MOD1; ^ user.cpp:61:114: warning: array subscript has type ‘char’ [-Wchar-subscripts] chSum1[i] = (((chSum1[i-1] - ((alphPow1 * chRank[B[i-lA]])%MOD1) + MOD1) % MOD1) * alphabet + chRank[B[i]]) % MOD1; ^ user.cpp:62:65: warning: array subscript has type ‘char’ [-Wchar-subscripts] chSum2[i] = (((chSum2[i-1] - ((alphPow2 * chRank[B[i-lA]])%MOD2) + MOD2) % MOD2) * alphabet + chRank[B[i]]) % MOD2; ^ user.cpp:62:114: warning: array subscript has type ‘char’ [-Wchar-subscripts] chSum2[i] = (((chSum2[i-1] - ((alphPow2 * chRank[B[i-lA]])%MOD2) + MOD2) % MOD2) * alphabet + chRank[B[i]]) % MOD2; ^ user.cpp:26:20: warning: unused variable ‘j’ [-Wunused-variable] int lA, lB, i, j, alphPow1 = 1, alphPow2 = 1, chSum_A1, chSum_A2, nMatches = 0; ^