/in/foo.cc:23:2: warning: "/*" within comment [-Wcomment]
  /*for(l=1;l<=n;l++){
   
/in/foo.cc: In function 'int main()':
/in/foo.cc:34:28: warning: left operand of comma operator has no effect [-Wunused-value]
  for(i=1;i<=n-1;i++){a[i+1]>a[i],d=d+1;};
                      ~~~~~~^~~~~