Compilare: user.cpp: In function ‘int main()’: user.cpp:9:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&n,&k); ^ user.cpp:10:48: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(int i=0;i<n;i++) fscanf(fin,"%d",&a[i]); ^ user.cpp:38:43: warning: ‘post’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(fout,"%d %d %d",post+2-ct[post],post+1,maxim); ^