http://poj.org/problem?id=2477 #include<iostream> #include"stdio.h" using namespace std; struct tree { int l,r; __int64 value; int child; }t[100]; int n,root; bool init() { int i,times[100]; cin>>n; if(n==0) return 0; for(i=1;i<=n;i++) times[i]=0; for(i=1;i<=n;i++) { cin>>t[i].l>>t[i].r; if(t[i].l>0) times[t[i].l]++; if(t[i].r>0) times[t[i].r]++; } for(i=1;i<=n;i++) if(times[i]==0) { root=i; break; } return 1; } const __int64 maxvalue=(__int64)1<<60; int travel(int a) { if(a<=0)return 0; t[a].child=travel(t[a].l)+travel(t[a].r)+1; return t[a].child; } void great(int s,__int64 value) { t[s].value=value; if(t[s].l>0) great(t[s].l,value/2/t[s].child*t[t[s].l].child); if(t[s].r>0) great(t[s].r,value/2/t[s].child*t[t[s].r].child); return ; } int main() { int i; while(init()) { travel(root); great(root,maxvalue); for(i=1;i<=n;i++) { printf("%I64d",t[i].value); if(i<n)printf(" "); } printf("n"); } return 0; }
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