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dfsid 0ms飘过。。。#include<cstdio> int mark,n,d,a[20],b[]={1,2,4,8,16,32,64,128,256,512,1024}; void dfs(int i){ if(i==d){ if(a[i-1]==n) mark=0; return ; } if(a[i-1]*b[d-i]<n) return ; for(int j=0;j<i;j++) if(mark){ a[i]=a[i-1]+a[j]; dfs(i+1); } } int main(){ a[0]=1; a[1]=2; while(scanf("%d",&n),n){ if(n==1) printf("1\n"); else if(n==2) printf("1 2\n"); else{ mark=1; d=2; while(mark){ d++; dfs(2); } for(int i=0;i<d-1;i++) printf("%d ",a[i]); printf("%d\n",a[d-1]); } } return 0; } Followed by:
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