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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 |
---|---|---|---|---|---|---|---|---|---|
#603549 | #6435. Paimon Segment Tree | bruteforce_ | WA | 1ms | 3636kb | C++20 | 2.8kb | 2024-10-01 17:13:08 | 2024-10-01 17:13:10 |
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.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'