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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#321826#7036. Can You Solve the Harder Problem?zxcenWA 1636ms108420kbC++173.1kb2024-02-05 17:19:172024-02-05 17:19:17

Judging History

This is the latest submission verdict.

  • [2024-02-05 17:19:17]
  • Judged
  • Verdict: WA
  • Time: 1636ms
  • Memory: 108420kb
  • [2024-02-05 17:19:17]
  • Submitted

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

Tip: Click on the bar to expand more detailed information

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'