Compilare: user.cpp: In function ‘int main()’: user.cpp:116:17: warning: unused variable ‘k2’ [-Wunused-variable] int k2=0; ^ user.cpp:14:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(pFile,"%d",&n); ^ user.cpp:16:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(pFile,"%s",v); ^ user.cpp:18:13: warning: ‘pz’ may be used uninitialized in this function [-Wmaybe-uninitialized] int poz,pz; ^ user.cpp:141:29: warning: ‘poz’ may be used uninitialized in this function [-Wmaybe-uninitialized] v[poz]=v[i]; ^