QOJ.ac
QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#603547 | #6435. Paimon Segment Tree | bruteforce_ | WA | 1ms | 3664kb | C++20 | 2.8kb | 2024-10-01 17:11:40 | 2024-10-01 17:11:40 |
Judging History
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.clear();
}
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();
}
}
詳細信息
Test #1:
score: 100
Accepted
time: 0ms
memory: 3600kb
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: 3664kb
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:
319970821 982036098 487729707 219525501 640673380 93950215 748914815 553313942 426165200 717260249 330341960 347738635 223459267 374974748 564311761 217987090 37442138 430173578 761210554 206806445 71704735 706997165 606180267 101111635 649739372 617354057 41524429 453117732 539100411 873629294 2928...
result:
wrong answer 1st numbers differ - expected: '400489222', found: '319970821'