comefrom: <qiyuangong>852_Peak_Index_in_a_Mountain_Array_1.py
code: def peakIndexInMountainArray( A):
      i = 0
      while A[i + 1] >= A[i]:
          i += 1
      return i
masked: def sample_funcname ( var_0 ) :
      var_2 = 0
      while var_0 [ var_2 + 1 ] >= var_0 [ var_2 ] :
          var_2 += 1
      return var_2
  