comefrom: <qiyuangong>1480_Running_Sum_of_1d_Array_1.java
code: public int[] runningSum(int[] nums) {
          if (nums.length <= 1) return nums;
          for (int i = 1; i < nums.length; i++)
              nums[i] += nums[i - 1];
          return nums;
      }
masked: public int [ ] sample_funcname ( int [ ] var_0 ) {
    if ( var_0 . length <= 1 ) return var_0 ;
    for ( int var_1 = 1 ;
    var_1 < var_0 . length ;
    var_1 ++ ) var_0 [ var_1 ] += var_0 [ var_1 - 1 ] ;
    return var_0 ;
  }
  