一道数学题

8倍 编个程序就好了

程序如下 用c语言

#include <stdio.h>

int main()

{     int i,a,b,c,d,e,f,g,h,x,y;

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

a=i/1000;

b=(i-a*1000)/100;

c=(i-b*100-a*1000)/10;

d=(i-a*1000-b*100-c*10);

y=3*i;

if(a!=b&&a!=c&&a!=d&&b!=c&&b!=d&&c!=d)

{      

if(y>10000)

{   

e=y/10000;

f=(y-e*10000)/1000;

g=(y-f*1000-e*10000)/100;

h=(y-e*10000-f*1000-g*100)/10;

x=y-e*10000-f*1000-g*100-h*10;

if(a+b+c+d+e+f+g+h+x==45)

{

if(e!=f&&e!=g&&e!=h&&e!=x&&f!=g&&f!=h&&f!=x&&g!=h&&g!=x&&h!=x&&e!=a&&e!=b&&e!=c&&e!=d&&f!=a&&f!=b&&f!=c&&f!=d&&g!=a&&g!=b&&g!=c&&g!=d

&&h!=a&&h!=b&&h!=c&&h!=d&&x!=a&&x!=b&&x!=c&&x!=d

)

{

printf("%d %d\n",i,y);

}

}

}

}

}

return 0;

}

追问

如何编程序

追答

算法才重要
首先设n
n从1000开始 然后取个十百千各个位子的数字
然后用判断有没有相同的数字
再把n乘以个系数 我乘了8
然后得到新的数 将他取个是百千万各个位 比较各个位有没有相同的
然后输出就好了

本回答被提问者采纳

一共89个答案。
2394/16758 = 1/7
2637/18459 = 1/7
2697/13485 = 1/5
2769/13845 = 1/5
2937/14685 = 1/5
2943/17658 = 1/6
2967/14835 = 1/5
2973/14865 = 1/5
3187/25496 = 1/8
3297/16485 = 1/5
3729/18645 = 1/5
3942/15768 = 1/4
4392/17568 = 1/4
4527/31689 = 1/7
4589/36712 = 1/8
4591/36728 = 1/8
4653/27918 = 1/6
4689/37512 = 1/8
4691/37528 = 1/8
4769/38152 = 1/8
5237/41896 = 1/8
5274/36918 = 1/7
5371/42968 = 1/8
5418/37926 = 1/7
5697/34182 = 1/6
5789/46312 = 1/8
5791/46328 = 1/8
5796/23184 = 1/4
5823/17469 = 1/3
5832/17496 = 1/3
5839/46712 = 1/8
5892/47136 = 1/8
5916/47328 = 1/8
5921/47368 = 1/8
5976/41832 = 1/7
6297/31485 = 1/5
6381/57429 = 1/9
6471/58239 = 1/9
6479/51832 = 1/8
6729/13458 = 1/2
6741/53928 = 1/8
6789/54312 = 1/8
6791/54328 = 1/8
6792/13584 = 1/2
6839/54712 = 1/8
6927/13854 = 1/2
7123/56984 = 1/8
7269/14538 = 1/2
7293/14586 = 1/2
7312/58496 = 1/8
7329/14658 = 1/2
7364/58912 = 1/8
7416/59328 = 1/8
7421/59368 = 1/8
7614/53298 = 1/7
7629/38145 = 1/5
7692/15384 = 1/2
7894/63152 = 1/8
7923/15846 = 1/2
7932/15864 = 1/2
7941/63528 = 1/8
7956/31824 = 1/4
8174/65392 = 1/8
8179/65432 = 1/8
8361/75249 = 1/9
8394/67152 = 1/8
8419/67352 = 1/8
8439/67512 = 1/8
8932/71456 = 1/8
8942/71536 = 1/8
8953/71624 = 1/8
8954/71632 = 1/8
9156/73248 = 1/8
9158/73264 = 1/8
9182/73456 = 1/8
9237/46185 = 1/5
9267/18534 = 1/2
9273/18546 = 1/2
9316/74528 = 1/8
9321/74568 = 1/8
9327/18654 = 1/2
9352/74816 = 1/8
9416/75328 = 1/8
9421/75368 = 1/8
9523/76184 = 1/8
9531/76248 = 1/8
9541/76328 = 1/8
9627/48135 = 1/5
9723/48615 = 1/5