复杂的
- package don;
- public class Text2{
- static final int MAX=8;
- static final int NUN=29;
- static int []num=new int[NUN];
- static int []lottery=new int [MAX];
- public static void main(String[]args){
- int i,j;
- for(i=0;i<NUN;i++){
- num[i]=i+1;
- }
- for(i=0;i<MAX ;i++ ){
- lottery[i]=0;
- }
- fun2(NUN,MAX);
- }
- static void fun2(int n,int m){
- for(int i=n ;i>=m;i-- ){
- lottery[m-1]=num[i-1];
- if(m>1){
- fun2(i-1,m-1);
- }
- else{
- for(int j=MAX-1 ;j>=0 ;j-- )System.out.print(" "+lottery[j]);
- System.out.println();
- }
-
- }
- }
- }
-
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还有一个好懂
- package don;
- import java.io.IOException;
- public class Text {
- public static void main(String[]args) throws IOException{
- int []i=new int[7];
- int j;
- for(i[0]=1 ;i[0]<=29 ;i[0]++ ){
- for(i[1]=1 ;i[1]<=29 ;i[1]++ ){
- if (i[0]==i[1])continue;
- for(i[2]=1 ;i[2]<29 ;i[2]++ ){
- if(i[0]==i[2]||i[1]==i[2])continue;
- for(i[3]=1 ;i[3]<29 ;i[3]++ ){
- if(i[0]==i[3]||i[1]==i[3]||i[2]==i[3])continue;
- for(i[4]=1 ;i[4]<=29 ;i[4]++ ){
- if(i[0]==i[4]||i[1]==i[4]||
- i[2]==i[4]||i[3]==i[4])continue;
- for(i[5]=1 ;i[5]<29 ;i[5]++ ){
- if (i[0]==i[5]||i[1]==i[5]||
- i[2]==i[5]||i[3]==i[5]||i[4]==i[5])continue;
- for(i[6]=1 ;i[6]<=29;i[6]++ ){
- if(i[0]==i[6]||i[1]==i[6]||
- i[2]==i[6]||i[3]==i[6]||
- i[4]==i[6]||i[5]==i[6])continue;
- for(j=0 ;j<7 ;j++ )System.out.print(" "+i[j]);
- System.out.println();
- System.in.read();
- }
- }
- }
- }
- }
- }
- }
- }
- }
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