comefrom: <awangdev>149. Max Points on a Line_1.java
code: private int findGCD(int a, int b) {
  
          if (b == 0) return a;
          return findGCD(b, a % b);
      }
masked: private int sample_funcname ( int a , int b ) {
    if ( b == 0 ) return a ;
    return findGCD ( b , a % b ) ;
  }
  