Compilare: user.cpp: In function ‘void calc(long long int, char)’: user.cpp:42:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] long long x1=vf[ch],x2=vf[change(ch)]; ^ user.cpp:42:40: warning: array subscript has type ‘char’ [-Wchar-subscripts] long long x1=vf[ch],x2=vf[change(ch)]; ^ user.cpp:46:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] ans+=sp[poz][tr(ch)]; ^ user.cpp:48:36: warning: array subscript has type ‘char’ [-Wchar-subscripts] ans+=sp[poz][tr(change(ch))]; ^ user.cpp: In function ‘int main()’: user.cpp:89:14: warning: array subscript has type ‘char’ [-Wchar-subscripts] sp[i][x]++; ^ user.cpp:90:14: warning: array subscript has type ‘char’ [-Wchar-subscripts] vf[v[i]]++; ^ user.cpp:83:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %d " ,&k,&q); ^ user.cpp:94:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%lld " ,&poz); ^