Compilare: user.cpp: In function ‘int main()’: user.cpp:112:14: warning: narrowing conversion of ‘A1.Aint::ans’ from ‘long long int’ to ‘int’ inside { } [-Wnarrowing] Q[i] = {A1.ans, S[i] + 1, i}; ^ user.cpp: In function ‘char nextch()’: user.cpp:10:36: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buf, BUF_SIZE, 1, fi); ^