Compilare: user.cpp: In function ‘int main()’: user.cpp:15:18: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(f[v[j]]==0) ^ user.cpp:17:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] f[v[j]]++; ^ user.cpp:20:13: warning: array subscript has type ‘char’ [-Wchar-subscripts] f[v[j-1]]--; ^ user.cpp:24:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] f[v[i]]--; ^ user.cpp:25:18: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(f[v[i]]==0){ ^ user.cpp:27:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] while(f[v[j]]){ ^ user.cpp:28:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] f[v[j]]++; ^ user.cpp:31:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] f[v[j++]]++; ^ user.cpp:32:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] while(f[v[j]]){ ^ user.cpp:33:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] f[v[j]]++; ^ user.cpp:10:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d ",&z,&c); ^