数学趣题——填数字游戏

#include <stdio.h>

   2:  

int i)

   4: {

int r = 0;

while (i)

   7:     {

   8:         r = r * 10 + i % 10;

   9:         i = i / 10;

  10:     }

return r;

  12: }

  13:  

int j)

  15: {

int buf[4], k = 0;

while (i)

  18:     {

  19:         buf[k] = i % 10;

  20:         i = i / 10;

  21:         k++;

  22:     }

  23:  

if(buf[0]!=buf[1] && buf[0] != buf[2] && buf[0] != buf[3] && buf[0] != j)

if(buf[1] != buf[2] && buf[1]!= buf[3] && buf[1] != j)

if(buf[2] != buf[3] && buf[2] != j)

if(buf[3] != j)

return 1;

  29:  

return 0;

  31: }

  32:  

int main()

  34: {

int i,j;

for(i=1000; i<10000; i++)

for(j=1; j<10; j++)

if (i * j == Reverse(i) && fun(i, j))

  39:             {

, i);

, j);

);

, i * j);

  44:             }

return 0;

  46: }