comefrom: <qiyuangong>668_Kth_Smallest_Number_in_Multiplication_Table_1.java
code: public boolean enough(int x, int m, int n, int k) {
          int count = 0;
          for (int i = 1; i <= m; i++) {
              count += Math.min(x / i, n);
          }
          return count >= k;
      }
masked: public boolean var_0 ( int var_1 , int var_2 , int var_3 , int var_4 ) {
    int var_5 = 0 ;
    for ( int var_6 = 1 ;
    var_6 <= var_2 ;
    var_6 ++ ) {
      var_5 += Math . min ( var_1 / var_6 , var_3 ) ;
    }
    return var_5 >= var_4 ;
  }
  