本文共 1102 字,大约阅读时间需要 3 分钟。
#includeusing namespace std;typedef long long ll;const int maxn=1e5+5;vector g[maxn];ll a[maxn],b[maxn],c[maxn],ans[7][maxn],minn=2e18,temp;void dfs(int x,int fa,int a,int b,int c,int deep,int id){ if(deep%3==1) ans[id][x]=a; else if(deep%3==2) ans[id][x]=b; else if(deep%3==0) ans[id][x]=c; for(int to:g[x]) { if(to==fa) continue; dfs(to,x,a,b,c,deep+1,id); }}int main(){ int k,n,x,y,root=1; scanf("%d",&n); for(int i=1;i<=n;++i) scanf("%lld",&a[i]); for(int i=1;i<=n;++i) scanf("%lld",&b[i]); for(int i=1;i<=n;++i) scanf("%lld",&c[i]); for(int i=1;i 2){ puts("-1");return 0; } } dfs(root,0,1,2,3,1,1);dfs(root,0,1,3,2,1,2);dfs(root,0,2,1,3,1,3);dfs(root,0,2,3,1,1,4);dfs(root,0,3,2,1,1,5);dfs(root,0,3,1,2,1,6); for(int i=1;i<=6;++i) { temp=0; for(int j=1;j<=n;++j) { if(ans[i][j]==1) temp+=a[j]; else if(ans[i][j]==2) temp+=b[j]; else temp+=c[j]; } if(temp
转载地址:http://trewz.baihongyu.com/