Submission #605580

#	Time	Username	Problem	Language	Result	Execution time	Memory
605580		1ne	Meteors (POI11_met)	C++14	24 / 100	6072 ms	33024 KiB

met

#include<bits/stdc++.h>
using namespace std;
struct node{
	long long l,r,v;
};
struct dataa{
	long long v = 0,lazy =0;
	void add(long long left,long long right,long long val){
		v+=val;
		lazy+=val;
	}
};
struct Segment_Tree{
	vector<dataa>tree;
	void init(long long n){
		tree.resize(2*n - 1);
	}
	dataa combine(dataa& left,dataa& right){
		dataa res;
		res.v = left.v + right.v;
		return res;
	}
	void push(long long node,long long left,long long right){
		long long mid = (left + right)>>1;
		long long z = node + ((mid - left + 1)<<1);
		if (tree[node].lazy!=0){
			tree[node + 1].add(left,mid,tree[node].lazy);
			tree[z].add(mid + 1,right,tree[node].lazy);
			tree[node].lazy = 0;
		}
	}
	long long query(long long node,long long left,long long right,long long qleft,long long qright){
		if (qright<left|| qleft > right)return 0;
		if (qleft<=left && qright>=right){
			return tree[node].v;
		}
		push(node,left,right);
		long long mid = (left + right)>>1;
		long long z = node + ((mid - left + 1)<<1);
		long long ans = 0;
		if (qleft<=mid){
			ans+=query(node + 1,left,mid,qleft,qright);
		}
		if (qright > mid){
			ans+=query(z,mid + 1,right,qleft,qright);
		}
		return ans;
	}
	void update(long long node,long long left,long long right,long long uleft,long long uright,long long v){
		if (left > uright || right < uleft) return;
		if (uleft <= left && right <=uright){
			tree[node].add(left,right,v);
			return;
		}
		push(node,left,right);
		long long mid = (left + right)>>1;
		long long z = node + ((mid - left + 1)<<1);
		if (uleft<=mid){
			update(node + 1,left,mid,uleft,uright,v);
		}
		if (uright > mid){
			update(z,mid + 1,right,uleft,uright,v);
		}
		tree[node] = combine(tree[node + 1],tree[z]);
	}
};

int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	int n,m;cin>>n>>m;
	vector<vector<int>>arr(n);
	for (int i = 0;i<m;++i){
		int x;cin>>x;
		arr[x - 1].push_back(i);
	}
	vector<long long>brr(n);
	for (int i = 0;i<n;++i)cin>>brr[i];
	int k;cin>>k;
	vector<node>edge(k);
	for (int i = 0;i<k;++i){
		cin>>edge[i].l>>edge[i].r>>edge[i].v;
		edge[i].l--;
		edge[i].r--;
	}
	vector<int>l(n),r(n);
	queue<int>q;
	Segment_Tree st;
	st.init(m);
	int pos = -1;
	for (int i = 0;i<n;++i){
		q.push(i);
		l[i] = 0,r[i] = k;
	}
	vector<int>ans(n,-1);
	while(!q.empty()){
		int u = q.front();
		q.pop();
		if (l[u] == r[u]){
			ans[u] = l[u];
			continue;
		}
		int mid = (l[u] + r[u])>>1;
		if (pos > mid){
			for (int i = mid + 1;i<=pos;++i){
				if (edge[i].l<=edge[i].r){
					st.update(0,0,m - 1,edge[i].l,edge[i].r,-edge[i].v);
				}
				else{
					st.update(0,0,m - 1,edge[i].l,m - 1,-edge[i].v);
					st.update(0,0,m - 1,0,edge[i].r,-edge[i].v);
				}
			}
			pos = mid;
		}
		else{
			for (int i = pos + 1;i<=mid;++i){
				if (edge[i].l<=edge[i].r){
					st.update(0,0,m - 1,edge[i].l,edge[i].r,edge[i].v);
				}
				else{
					st.update(0,0,m - 1,edge[i].l,m - 1,edge[i].v);
					st.update(0,0,m - 1,0,edge[i].r,edge[i].v);
				}
			}
			pos = mid;
		}
		long long counts = 0;
		for (auto x:arr[u]){
			counts+=st.query(0,0,m - 1,x,x);
			if (counts >=brr[u])break;
		}
		if (counts < brr[u]){
			q.push(u);
			l[u] = mid + 1;
		}
		else {
			q.push(u);
			r[u] = mid;
		}
	}
	for (auto x:ans){
		x++;
		if (x > k)cout<<"NIE\n";
		else cout<<x<<'\n';
	}
	return 0;
}

• Subtask 1: 12 / 12
• Subtask 2: 12 / 12
• Subtask 3: 0 / 12
• Subtask 4: 0 / 12
• Subtask 5: 0 / 13
• Subtask 6: 0 / 13
• Subtask 7: 0 / 13
• Subtask 8: 0 / 13