Compilare: user.cpp: In function ‘void MergeSons()’: user.cpp:139:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] fson[ch] = 0; ^ user.cpp:144:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (fson[c[j]] == 0) ^ user.cpp:145:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] fson[c[j]] = j; ^ user.cpp:152:50: warning: array subscript has type ‘char’ [-Wchar-subscripts] sonsnext[p] = sonsstart[fson[c[j]]]; ^ user.cpp:153:36: warning: array subscript has type ‘char’ [-Wchar-subscripts] sonsstart[fson[c[j]]] = sonsstart[j]; ^ user.cpp:160:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (fson[ch] > 0) { ^ user.cpp:161:37: warning: array subscript has type ‘char’ [-Wchar-subscripts] sson[q[i]] = fson[ch]; ^ user.cpp:162:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] pp[fson[ch]] = q[i]; ^ user.cpp:126:24: warning: unused variable ‘L’ [-Wunused-variable] int i, j, k, p, r, L, li, ls, mid; ^ user.cpp: In function ‘void SelectBest()’: user.cpp:234:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, curr = 0, prev = 0; ^