oracle如何实现远程连接

Posted 2021-04-30 C语言程序互动营

PowerDesigner生成数据库代码注意里面的双引号，应该去掉

△△△ * △△ = △△△△

某3位数乘以2位数，结果为4位数

要求：在9个△所代表的数字中，1~9的数字恰好每个出现1次。

public class Pruning {  
    public static void main(String[] args) {  
            
       int n1, n2, n3, n4, n5, n6, n7, n8, n9;  
       for (int i = 123; i <= 987; i++) {  
           n1 = i / 100;  
           n2 = i / 10 % 10;  
           n3 = i % 10;  
           if (n1 == 0 || n2 == 0 || n3 == 0 ) {  
              continue;  
           }  
           if( n1 == n2 || n1 == n3  
                  || n2 == n3){  
              continue;  
           }  
           for (int j = 12; j <= 98; j++) {  
              n4 = j / 10;  
              n5 = j % 10;  
              if (n4 == 0 || n5 == 0 ) {  
                  continue;  
              }  
              if( n4 == n5 || n4 == n1 || n4 == n2  
                     || n4 == n3 || n5 == n1 || n5 == n2 || n5 == n3){  
                  continue;  
              }  
              for (int k = 1234; k <= 9876; k++) {  
                  n6 = k / 1000;  
                  n7 = k / 100 % 10;  
                  n8 = k / 10 % 10;  
                  n9 = k % 10;  
                  if((n3*n5)%10!=n9){  
                     continue;  
                  }  
                  if (n6 == 0 || n7 == 0 || n8 == 0 || n9 == 0 || n6 == n7  
                         || n6 == n8 || n6 == n9 || n7 == n8 || n7 == n9  
                         || n8 == n9 || n6 == n1 || n6 == n2 || n6 == n3  
                         || n6 == n4 || n6 == n5 || n7 == n1 || n7 == n2  
                         || n7 == n3 || n7 == n4 || n7 == n5 || n8 == n1  
                         || n8 == n2 || n8 == n3 || n8 == n4 || n8 == n5  
                         || n9 == n1 || n9 == n2 || n9 == n3 || n9 == n4  
                         || n9 == n5) {  
                     continue;  
                  }  
                  if (i * j == k) {  
                     System.out.println(i + " " + j + " " + k);  
                  }  
              }  
           }  
       
       }  
    }  
}

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