You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
This file contains ambiguous Unicode characters that may be confused with others in your current locale. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to highlight these characters.
# include <stdio.h>
int n = 0 ;
int rest [ 7 ] [ 7 ] ;
void swap ( int * a , int * b )
{
int m ;
m = * a ;
* a = * b ;
* b = m ;
}
void perm ( int list [ ] , int k , int m )
{
int i ;
int j ;
if ( k > m )
{
for ( i = 0 ; i < 7 ; i + + )
{
for ( j = 0 ; j < 7 ; j + + )
{
if ( rest [ i ] [ j ] = = - 1 )
return ;
if ( rest [ i ] [ j ] ! = list [ i ] )
continue ;
if ( rest [ i ] [ j ] = = list [ i ] )
break ;
}
}
n + + ;
printf ( " Solution: %d \n " , n ) ;
printf ( " 赵 钱 孙 李 周 吴 陈 \n " ) ;
for ( i = 0 ; i < = m ; i + + )
{
switch ( list [ i ] )
{
case 1 : printf ( " 星期一 " ) ;
break ;
case 2 : printf ( " 星期二 " ) ;
break ;
case 3 : printf ( " 星期三 " ) ;
break ;
case 4 : printf ( " 星期四 " ) ;
break ;
case 5 : printf ( " 星期五 " ) ;
break ;
case 6 : printf ( " 星期六 " ) ;
break ;
case 7 : printf ( " 星期日 " ) ;
break ;
default :
break ;
}
}
printf ( " \n \n \n " ) ;
}
else
{
for ( i = k ; i < = m ; i + + )
{
swap ( & list [ k ] , & list [ i ] ) ;
perm ( list , k + 1 , m ) ;
swap ( & list [ k ] , & list [ i ] ) ;
}
}
}
int main ( )
{
int list [ ] = { 1 , 2 , 3 , 4 , 5 , 6 , 7 } ;
int i , j ;
char ss [ 7 ] [ 20 ] = { " 赵 " , " 钱 " , " 孙 " , " 李 " , " 周 " , " 吴 " , " 陈 " } ;
printf ( " ===========================欢迎使用排班系统=================================== \n " ) ;
printf ( " 请输入下列人选选择休息的可能时间,每输完一个人的休息时间,输入-1后按回车 \n " ) ;
for ( i = 0 ; i < 7 ; i + + )
{
printf ( " %s: " , ss [ i ] ) ;
for ( j = 0 ; j < 7 ; j + + )
{
scanf ( " %d " , & rest [ i ] [ j ] ) ;
if ( rest [ i ] [ j ] = = - 1 )
break ;
}
}
printf ( " \n \n \n " ) ;
perm ( list , 0 , 6 ) ;
printf ( " 可能的方案有:%d种 " , n ) ;
getchar ( ) ;
return 0 ;
}