Compilare: user.cpp: In function ‘int main()’: user.cpp:24:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&n,&p); ^ user.cpp:28:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&a[i]); ^ user.cpp: In function ‘int gas()’: user.cpp:17:12: warning: ‘minpos’ may be used uninitialized in this function [-Wmaybe-uninitialized] return minpos; ^ user.cpp: In function ‘int main()’: user.cpp:44:38: warning: ‘minpos’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(fout,"%d ",po[poz]+1); ^ user.cpp:38:25: warning: ‘minpos’ may be used uninitialized in this function [-Wmaybe-uninitialized] a[poz]+=a[i]; ^