Compilare: user.cpp: In function ‘int main()’: user.cpp:42:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(val[1][ch[i]]<p1+1) ^ user.cpp:44:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] val[1][ch[i]]=p1+1; ^ user.cpp:45:33: warning: array subscript has type ‘char’ [-Wchar-subscripts] sol=max(val[1][ch[i]],sol); ^ user.cpp:51:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(val[0][ch[i]]<p2+1) ^ user.cpp:53:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] val[0][ch[i]]=p2+1; ^ user.cpp:54:33: warning: array subscript has type ‘char’ [-Wchar-subscripts] sol=max(val[0][ch[i]],sol); ^ user.cpp:32:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("palalila2.in","r",stdin); ^ user.cpp:33:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("palalila2.out","w",stdout); ^ user.cpp:34:29: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(ch,1,500003,stdin); ^