代码

#include<cstdio>
#include<cctype>
#include<vector>
#include<climits>
#include<algorithm>
#include<functional>
#include<ext/pb_ds/priority_queue.hpp>
inline int getint() {
	register char ch;
	while(!isdigit(ch=getchar()));
	register int x=ch^'0';
	while(isdigit(ch=getchar())) x=(((x<<2)+x)<<1)+(ch^'0');
	return x;
}
const int N=2e5+1,S=1e9,M=4e5,Q=4e5;
struct Edge {
	int to,l,a;
};
std::vector<Edge> e[N];
inline void add_edge(const int &u,const int &v,const int &l,const int &a) {
	e[u].push_back((Edge){v,l,a});
	e[v].push_back((Edge){u,l,a});
}
int n,m,q,k,s;
void reset() {
	for(register int i=1;i<=n;i++) e[i].clear();
}
namespace subtask_same_elevation {
	int elevation,dis[N];
	struct Vertex {
		int w,id;
		bool operator > (const Vertex &rhs) const {
			return w>rhs.w;
		}
	};
	void dijkstra() {
		static __gnu_pbds::priority_queue<Vertex,std::greater<Vertex> > q;
		static __gnu_pbds::priority_queue<Vertex,std::greater<Vertex> >::point_iterator p[N];
		for(register int i=1;i<=n;i++) {
			p[i]=q.push((Vertex){dis[i]=i==1?0:INT_MAX,i});
		}
		while(!q.empty()) {
			const int x=q.top().id;
			q.pop();
			for(register unsigned i=0;i<e[x].size();i++) {
				const int &y=e[x][i].to,&w=e[x][i].l;
				if(dis[x]+w<dis[y]) {
					q.modify(p[y],(Vertex){dis[y]=dis[x]+w,y});
				}
			}
		}
	}
};
namespace subtask_tree {
	int dep[N],sum[N];
	class SegmentTree {
		#define mid ((b+e)>>1)
		private:
			static const int SIZE=N*40;
			struct Node {
				int val,left,right;
			};
			Node node[SIZE];
			int sz,new_node(const int &p) {
				node[++sz]=node[p];
				return sz;
			}
		public:
			int root[N];
			void reset() {
				sz=0;
			}
			void insert(int &p,const int &b,const int &e,const int &x,const int &y) {
				p=new_node(p);
				if(dep[y]>=dep[node[p].val]) {
					node[p].val=y;
				}
				if(b==e) return;
				if(x<=mid) insert(node[p].left,b,mid,x,y);
				if(x>mid) insert(node[p].right,mid+1,e,x,y);
			}
			int query(const int &p,const int &b,const int &e,const int &x) {
				if(e==x) return node[p].val;
				if(x<=mid) {
					return query(node[p].left,b,mid,x);
				} else {
					const int u=query(node[p].left,b,mid,mid);
					const int v=query(node[p].right,mid+1,e,x);
					return dep[u]>dep[v]?u:v;
				}
			}
		#undef mid
	};
	SegmentTree t;
	void dfs(const int &x,const int &par) {
		for(unsigned i=0;i<e[x].size();i++) {
			const int &y=e[x][i].to,&l=e[x][i].l,&a=e[x][i].a;
			if(y==par) continue;
			sum[y]=sum[x]+l;
			dep[y]=dep[x]+1;
			t.insert(t.root[y]=t.root[x],0,S,a,y);
			dfs(y,x);
		}
	}
};
namespace subtask_offline {
	using namespace subtask_same_elevation;
	struct Edge2 {
		int u,v,w;
		bool operator > (const Edge2 &rhs) const {
			return w>rhs.w;
		}
	};
	struct Query {
		int v,p,id;
		bool operator > (const Query &rhs) const {
			return p>rhs.p;
		}
	};
	int ans[Q];
	Edge2 edge[M];
	Query que[Q];
	class DisjointSet {
		private:
			int anc[N],val[N];
			int find(const int &x) {
				return x==anc[x]?x:anc[x]=find(anc[x]);
			}
		public:
			void init() {
				for(register int i=1;i<=n;i++) {
					anc[i]=i;
					val[i]=dis[i];
				}
			}
			void merge(const int &x,const int &y) {
				const int p=find(x),q=find(y);
				val[q]=std::min(val[q],val[p]);
				anc[p]=q;
			}
			bool same(const int &x,const int &y) {
				return find(x)==find(y);
			}
			int query(const int &x) {
				return val[find(x)];
			}
	};
	DisjointSet djs;
};
namespace subtask_n2 {
	using namespace subtask_same_elevation;
	using namespace subtask_offline;
};
int main() {
	for(register int T=getint();T;T--) {
		n=getint(),m=getint();
		bool is_tree=m==n-1;
		bool same_elevation=true;
		for(register int i=0;i<m;i++) {
			const int u=getint(),v=getint(),l=getint(),a=getint();
			subtask_offline::edge[i]=(subtask_offline::Edge2){u,v,a};
			if(i!=0&&subtask_same_elevation::elevation!=a) same_elevation=false;
			add_edge(u,v,l,subtask_same_elevation::elevation=a);
		}
		q=getint(),k=getint(),s=getint();
		bool offline=k==0;
		if(q==0) goto Next;
		if(same_elevation&&offline) {
			using namespace subtask_same_elevation;
			dijkstra();
			for(register int i=0;i<q;i++) {
				const int v=getint(),p=getint();
				printf("%d\n",p<elevation?0:dis[v]);
			}
			goto Next;
		}
		if(is_tree) {
			using namespace subtask_tree;
			dfs(1,0);
			for(register int i=0,ans=0;i<q;i++) {
				const int v=(getint()+k*ans-1)%n+1;
				const int p=(getint()+k*ans)%(s+1);
				printf("%d\n",ans=sum[t.query(t.root[v],0,S,p)]);
			}
			t.reset();
			goto Next;
		}
		if(offline) {
			using namespace subtask_offline;
			dijkstra();
			std::sort(&edge[0],&edge[m],std::greater<Edge2>());
			for(register int i=0;i<q;i++) {
				const int v=getint(),p=getint();
				que[i]=(Query){v,p,i};
			}
			std::sort(&que[0],&que[q],std::greater<Query>());
			djs.init();
			for(register int i=0,j=0;j<q;j++) {
				for(;edge[i].w>que[j].p;i++) {
					const int &u=edge[i].u,&v=edge[i].v;
					if(djs.same(u,v)) continue;
					djs.merge(u,v);
				}
				ans[que[j].id]=djs.query(que[j].v);
			}
			for(register int i=0;i<q;i++) {
				printf("%d\n",ans[i]);
			}
			goto Next;
		}
		if(n<=1500&&m<=4000&&q<=2000) {
			using namespace subtask_n2;
			dijkstra();
			for(register int i=0,last;i<q;i++) {
				const int v=(getint()+k*last-1)%n+1;
				const int p=(getint()+k*last)%(s+1);
				djs.init();
				for(register int i=0;i<m;i++) {
					if(edge[i].w<=p) continue;
					const int &u=edge[i].u,&v=edge[i].v;
					if(djs.same(u,v)) continue;
					djs.merge(u,v);
				}
				printf("%d\n",last=djs.query(v));
			}
			goto Next;
		}
		Next:
			reset();
	}
	return 0;
}

评测结果