/in/foo.cc: In function 'void Output(int*, int)':
/in/foo.cc:7:8: warning: value computed is not used [-Wunused-value]
     a[i];
     ~~~^
/in/foo.cc:7:8: warning: statement has no effect [-Wunused-value]
/in/foo.cc: In function 'int FindiSecondMaxIndex(int*, int)':
/in/foo.cc:40:23: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   if(a[imax1]=a[imax2])
                       ^