/in/foo.cc: In function 'int main()':
/in/foo.cc:40:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  for(int j=m;j>0;j--)
  ^~~
/in/foo.cc:50:3: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   cout<<f[n][m]<<endl;
   ^~~~
/in/foo.cc:6:10: warning: unused variable 'j' [-Wunused-variable]
  int n,i,j;
          ^
/in/foo.cc:7:20: warning: unused variable 'temp' [-Wunused-variable]
  long long m,a[40],temp;
                    ^~~~