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Re:next_permutation()就是好使In Reply To:next_permutation()就是好使 Posted by:Eli_love at 2010-03-31 20:53:36 #include<iostream>
#include<algorithm>
using namespace std;
int main()
{
int n,k;
while(scanf("%d%d",&n,&k)!=EOF){
int i,j,a[11],b1[11],b2[11];
for(i=0;i<n;i++) b1[i]=a[i]=i+1;
do{
for(i=0;i<n;i++) b1[i]=a[i];
for(j=0;j<n-1;j++){
for(i=0;i<n-j-1;i++) b2[i]=b1[i]+b1[i+1];
for(i=0;i<n-j-1;i++) b1[i]=b2[i];
}
if(b1[0]==k) {
for(i=0;i<n-1;i++) printf("%d ",a[i]);
printf("%d\n",a[n-1]);
break;}
next_permutation(a,a+n);
}while(1);
}
return 0;
}
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