Compilare: user.cpp: In function ‘char nextch()’: user.cpp:25:58: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(pos==BUF_SIZE) fread(buf, BUF_SIZE, 1, fin), pos=0; ^ user.cpp: In function ‘int main()’: user.cpp:122:9: warning: ‘m’ may be used uninitialized in this function [-Wmaybe-uninitialized] for(i=1; i<m; i++) if(ansc>dinamica[t][s[i]]) ansc=dinamica[t][s[i]]; ^