Compilare: user.cpp: In function ‘char nextch()’: user.cpp:14:36: 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); ^ user.cpp: In function ‘int main()’: user.cpp:119:53: warning: ‘poz2’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(fo,"%d %d %d", lmax+1, poz1-lmax+1, poz2-lmax+1); ^ user.cpp:119:40: warning: ‘poz1’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(fo,"%d %d %d", lmax+1, poz1-lmax+1, poz2-lmax+1); ^