/in/foo.cc: In function 'int main()':
/in/foo.cc:9:27: warning: 'ans' may be used uninitialized [-Wmaybe-uninitialized]
    9 |                 int cnt,x,ans;
      |                           ^~~
/in/foo.cc:15:44: warning: 'cnt' may be used uninitialized [-Wmaybe-uninitialized]
   15 |                         for(int k=1;k*b[cnt]<=x;k++)
      |                                       ~~~~~^
/in/foo.cc:9:21: note: 'cnt' was declared here
    9 |                 int cnt,x,ans;
      |                     ^~~