foo.cc:38:10: error: stray '\357' in program
  return 0； 
          ^
foo.cc:38:11: error: stray '\274' in program
  return 0； 
           ^
foo.cc:38:12: error: stray '\233' in program
  return 0； 
            ^
foo.cc: In function 'int main()':
foo.cc:39:1: error: expected ';' before '}' token
 }
 ^
foo.cc:8:25: warning: unused variable 'k' [-Wunused-variable]
  int a[N],n,i,j,index,t,k;
                         ^

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