Compilare: user.cpp: In function ‘int main()’: user.cpp:21:18: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[i][s[i]]=i; ^ user.cpp:29:43: warning: array subscript has type ‘char’ [-Wchar-subscripts] suma=suma+q-a[q][c[j][k]]; ^ user.cpp:30:33: warning: array subscript has type ‘char’ [-Wchar-subscripts] q=a[q][c[j][k]]-1;nr++; ^ user.cpp:32:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(nr==strlen(c[j])&&q>=0) ^