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ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#321826 | #7036. Can You Solve the Harder Problem? | zxcen | WA | 1636ms | 108420kb | C++17 | 3.1kb | 2024-02-05 17:19:17 | 2024-02-05 17:19:17 |
Judging History
answer
#include<bits/stdc++.h>
#define ll long long
using namespace std;
const int N=2e5;
struct QUE{
int l,r;
};
int T;
int n;
ll a[N+10];
vector<QUE>que[N+10];
struct SGT{
struct node{
ll rv,sum,cov;
}tree[(N+10)<<2];
inline void cover(int rt,int l,int r,ll x){
tree[rt].rv=x;
tree[rt].sum=(r-l+1)*x;
tree[rt].cov=x;
}
inline void pushup(int rt){
tree[rt].rv=tree[rt<<1|1].rv;
tree[rt].sum=tree[rt<<1].sum+tree[rt<<1|1].sum;
}
inline void pushdown(int rt,int l,int r){
if(tree[rt].cov){
int mid=(l+r)>>1;
cover(rt<<1,l,mid,tree[rt].cov);
cover(rt<<1|1,mid+1,r,tree[rt].cov);
tree[rt].cov=0;
}
}
inline void init(int l,int r,int rt){
tree[rt]={0,0,0};
if(l==r){
return ;
}
int mid=(l+r)>>1;
init(l,mid,rt<<1);
init(mid+1,r,rt<<1|1);
}
inline int find(int l,int r,ll x,int rt){
if(l==r){
return l;
}
pushdown(rt,l,r);
int mid=(l+r)>>1;
if(tree[rt<<1].rv<x){
return find(l,mid,x,rt<<1);
}
else if(tree[rt<<1|1].rv<x){
return find(mid+1,r,x,rt<<1|1);
}
return 0;
}
inline void update(int l,int r,int pl,int pr,ll x,int rt){
if(pl<=l&&r<=pr){
cover(rt,l,r,x);
return ;
}
pushdown(rt,l,r);
int mid=(l+r)>>1;
if(pl<=mid){
update(l,mid,pl,pr,x,rt<<1);
}
if(pr>mid){
update(mid+1,r,pl,pr,x,rt<<1|1);
}
pushup(rt);
}
inline ll query(int l,int r,int pl,int pr,int rt){
if(pl<=l&&r<=pr){
return tree[rt].sum;
}
pushdown(rt,l,r);
int mid=(l+r)>>1;
ll res=0;
if(pl<=mid){
res+=query(l,mid,pl,pr,rt<<1);
}
if(pr>mid){
res+=query(mid+1,r,pl,pr,rt<<1|1);
}
return res;
}
}sgt;
struct SAM{
int idx=0,lst=0;
unordered_map<ll,int>son[(N+10)<<1];
int link[(N+10)<<1]={-1},len[(N+10)<<1],ep[(N+10)<<1];
inline void insert(ll num,int pos){
int u=++idx,v=lst;
son[u].clear();
len[u]=len[lst]+1;
ep[u]=pos;
while(~v&&!son[v][num]){
son[v][num]=u;
v=link[v];
}
if(~v){
int w=son[v][num];
if(len[w]!=len[v]+1){
int x=++idx;
son[x].clear();
for(auto k:son[w]){
son[x][k.first]=k.second;
}
link[x]=link[w];
len[x]=len[v]+1;
ep[x]=pos;
while(~v&&son[v][num]==w){
son[v][num]=x;
}
link[u]=x;
link[w]=x;
}
else{
link[u]=w;
}
}
else{
link[u]=0;
}
lst=u;
}
inline void init_que(){
for(int i=1;i<=idx;++i){
que[ep[i]].push_back({ep[i]-len[i]+1,ep[i]-len[link[i]]});
}
}
}sam;
int main(){
//freopen(".in","r",stdin);
//freopen(".out","w",stdout);
ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
cin>>T;
while(T--){
cin>>n;
for(int i=1;i<=n;++i){
cin>>a[i];
}
sam.idx=0;
sam.lst=0;
sam.son[0].clear();
for(int i=1;i<=n;++i){
sam.insert(a[i],i);
}
for(int i=1;i<=n;++i){
que[i].clear();
}
sam.init_que();
sgt.init(1,n,1);
ll ans=0;
for(int i=1;i<=n;++i){
int pos=sgt.find(1,n,a[i],1);
if(1<=pos&&pos<=i){
sgt.update(1,n,pos,i,a[i],1);
}
for(auto x:que[i]){
ans+=sgt.query(1,n,x.l,x.r,1);
}
}
cout<<ans<<'\n';
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 10ms
memory: 37500kb
input:
2 3 1 2 3 3 2 3 3
output:
14 14
result:
ok 2 lines
Test #2:
score: -100
Wrong Answer
time: 1636ms
memory: 108420kb
input:
1000 407 205460 200518 200561 199235 198814 198136 198802 206763 198795 200705 205862 209366 204017 209481 206300 198499 197364 200897 208928 196983 205605 206396 205140 201050 199886 207314 196947 207905 204999 203288 200298 198594 198286 197714 206506 203962 197628 201127 206380 199090 200711 2063...
output:
17377263880 484769420621 1469039857 473739194467 490765637482 305434410403 488123854116 494441224927 484272937511 482412359474 34438338505 225764586244 494494400870 492874198815 486779601551 483167680203 341192630235 492747353987 491279729948 9765154255 491745355442 120812820486 487737922489 4725166...
result:
wrong answer 5th lines differ - expected: '490764968536', found: '490765637482'