Compilare: user.cpp: In function ‘int main()’: user.cpp:27:43: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(last[sir[i][strlen(sir[i]) - 1]] < 0){ ^ user.cpp:28:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] last[sir[i][strlen(sir[i]) - 1]] = i; ^ user.cpp:34:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(last[sir[i][0]] < i && last[sir[i][0]] > 0){ ^ user.cpp:34:49: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(last[sir[i][0]] < i && last[sir[i][0]] > 0){ ^ user.cpp:35:49: warning: array subscript has type ‘char’ [-Wchar-subscripts] char_len[i] = max_len[last[sir[i][0]]] + 1; ^ user.cpp:36:39: warning: array subscript has type ‘char’ [-Wchar-subscripts] before[i] = last[sir[i][0]]; ^ user.cpp:37:55: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(max_len[last[sir[i][strlen(sir[i]) - 1]]] < max_len[i]){ ^ user.cpp:38:48: warning: array subscript has type ‘char’ [-Wchar-subscripts] last[sir[i][strlen(sir[i]) - 1]] = i; ^ user.cpp:41:65: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(char_len[i] >= max_len[sir[i][strlen(sir[i]) - 1]]){ ^ user.cpp:43:52: warning: array subscript has type ‘char’ [-Wchar-subscripts] last_max[sir[i][strlen(sir[i]) - 1]] = i; ^ user.cpp:12:79: warning: variable ‘before’ set but not used [-Wunused-but-set-variable] int last[150], max_len[150], char_len[150], i = 0, n = 0, maxim = 1, poz, before[20000], last_max[20000]; ^ user.cpp:56:28: warning: ‘poz’ may be used uninitialized in this function [-Wmaybe-uninitialized] poz = last_max[poz]; ^