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#603549#6435. Paimon Segment Treebruteforce_WA 1ms3636kbC++202.8kb2024-10-01 17:13:082024-10-01 17:13:10

Judging History

你现在查看的是最新测评结果

  • [2024-10-01 17:13:10]
  • 评测
  • 测评结果:WA
  • 用时:1ms
  • 内存:3636kb
  • [2024-10-01 17:13:08]
  • 提交

answer

#include<bits/stdc++.h>
#define int long long
using namespace std;
const int N=1e6+7,inf=1e18,mod=998244353;
struct seg
{
	vector<int> val;
	vector<int> tag;
	bool bz;
	seg()
	{
		val.assign(5,0);
		tag.assign(7,0);
		bz=0;
	}
	seg(vector<int> a,vector<int> b,bool c):val(a),tag(b),bz(c){}
	void add(vector<int> &b)
	{

		//modify val
		(val[4]+=val[1]*b[3]%mod+val[2]*b[5]%mod+val[3]*b[6]%mod)%=mod;
		(val[3]+=val[1]*b[2]%mod+val[2]*b[4]%mod)%=mod;
		(val[2]+=val[1]*b[1]%mod)%=mod;

		//modify tag
		(tag[6]+=b[6])%=mod;
		(tag[5]+=tag[4]*b[6]%mod+b[5])%=mod;
		(tag[4]+=b[4])%=mod;
		(tag[3]+=tag[1]*b[5]+tag[2]*b[6]+b[3])%=mod;
		(tag[2]+=tag[1]*b[4]%mod+b[2])%=mod;
		(tag[1]+=b[1])%=mod;
		bz=1;
	}
};
vector<seg> tr;
void update(int u)
{
	int ls=u<<1,rs=u<<1|1;
	for(int i=1; i<=4; i++)
	{
		tr[u].val[i]=tr[ls].val[i]+tr[rs].val[i];
	}
}
void pushdown(int u)
{
	if(!tr[u].bz) return;
	tr[u<<1].add(tr[u].tag);
	tr[u<<1|1].add(tr[u].tag);
	tr[u].bz=0;
	tr[u].tag.assign(7,0);
}
vector<int> a;
void build(int u,int st,int ed)
{
	if(st==ed)
	{
		tr[u].val[1]=1;
		tr[u].val[2]=a[st];
		tr[u].val[3]=a[st]*a[st];
		tr[u].val[4]=a[st]*a[st];
		return;
	}
	int mid=st+ed>>1;
	build(u<<1,st,mid);
	build(u<<1|1,mid+1,ed);
	update(u);
}
void modify(int u,int st,int ed,int l,int r,int k)
{
	if(l<=st&&ed<=r)
	{
		int k2=k*k%mod;
		vector<int> b={0,k,k2,k2,2*k%mod,2*k%mod,1};
		tr[u].add(b);
		return;
	}
	pushdown(u);
	int mid=st+ed>>1;
	if(mid>=l)
		modify(u<<1,st,mid,l,r,k);
	if(mid<r)
		modify(u<<1|1,mid+1,ed,l,r,k);
	update(u);
}
int query(int u,int st,int ed,int l,int r)
{
	if(l<=st&&ed<=r)
	{
		return tr[u].val[4];
	}
	pushdown(u);
	int mid=st+ed>>1;
	int res=0;
	if(mid>=l)
		res=query(u<<1,st,mid,l,r);
	if(mid<r)
		res+=query(u<<1|1,mid+1,ed,l,r);
	res%=mod;
	return res;
}
void O_o()
{
	int n,m,Q;
	cin>>n>>m>>Q;
	tr.assign(n<<2,seg());
	vector<int> ans(Q,0);
	vector p(m+1,vector<array<int,3>>());//l,r,k
	vector q(m+1,vector<array<int,4>>());//l,r,id,1 or -1
	a.assign(n+1,0);
	for(int i=1; i<=n; i++)
		cin>>a[i];
	for(int i=1; i<=m; i++)
	{
		int l,r,k;
		cin>>l>>r>>k;
		if(l>1)
			p[i].push_back({1,l-1,0});
		if(r<n)
			p[i].push_back({r+1,n,0});
		p[i].push_back({l,r,k});
	}
	for(int i=0; i<Q; i++)
	{
		int l,r,x,y;
		cin>>l>>r>>x>>y;
		if(x>0)
			q[x-1].push_back({l,r,i,-1});
		q[y].push_back({l,r,i,1});
	}
	build(1,1,n);
	for(int i=0; i<=m; i++)
	{
		for(auto [l,r,k]:p[i])
		{
			modify(1,1,n,l,r,k);
		}
		for(auto [l,r,id,t]:q[i])
		{
			(ans[id]+=mod+t*query(1,1,n,l,r))%=mod;
		}
	}
	for(auto x:ans)
		cout<<x<<"\n";
}
signed main()
{
	ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
	cout<<fixed<<setprecision(12);
	int T=1;
//	cin>>T;
	while(T--)
	{
		O_o();
	}
}















详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 3572kb

input:

3 1 1
8 1 6
2 3 2
2 2 0 0

output:

1

result:

ok 1 number(s): "1"

Test #2:

score: 0
Accepted
time: 0ms
memory: 3636kb

input:

4 3 3
2 3 2 2
1 1 6
1 3 3
1 3 6
2 2 2 3
1 4 1 3
4 4 2 3

output:

180
825
8

result:

ok 3 number(s): "180 825 8"

Test #3:

score: -100
Wrong Answer
time: 1ms
memory: 3612kb

input:

100 107 180
-280960553 266308104 -997644864 856103777 592874377 674379235 -946339772 641750362 642418716 -360811715 -555543246 206614021 358239245 349842656 983198973 807518446 -66612455 -980932737 109826132 -109676067 51226145 452115561 -42729559 -950621304 -87009773 714026474 375317493 693260053 -...

output:

636128551
260107945
784528354
318836080
440366164
849988687
659145048
532179068
456398178
987850265
338907263
487289361
927428585
685648421
659614288
114060859
239639586
285943800
25223497
874170942
826862341
816481854
433277891
74864124
717905981
194432893
253817522
232240251
139397931
904775074
51...

result:

wrong answer 1st numbers differ - expected: '400489222', found: '636128551'