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 |
---|---|---|---|---|---|---|---|---|---|
#190938 | #5551. Selling RNA Strands | tybbs_s# | 0 | 0ms | 0kb | C++14 | 3.0kb | 2023-09-29 16:02:49 | 2024-07-04 02:11:38 |
answer
#include<bits/stdc++.h>
using namespace std;
const int maxn=2e6+5;
int n,q;
int tree1[maxn][5],tree2[maxn][5],cnt1=1,cnt2=1;
int fa1[maxn],dep1[maxn],siz1[maxn],hson1[maxn],l1[maxn],r1[maxn],l2[maxn],idfn[maxn],r2[maxn],dfn_cnt1,dfn_cnt2;
vector<int> item[maxn];// for tree 1
int plc[maxn];// for tree 2
struct Query{
int plc,id;
};
vector<Query> query[maxn];
int ans[maxn];
struct BIT{
int tree[maxn];
inline int lbit(int x){
return x&(-x);
}
void update(int plc,int val){
for(int i=plc;i<=cnt2;i+=lbit(i)){
tree[i]+=val;
}
}
int query(int plc){
if(!plc) return 0;
int ret=0;
for(int i=plc;i;i-=lbit(i)){
ret+=tree[i];
}
return ret;
}
} bit;
inline int id(char c){
if(c=='A') return 1;
if(c=='U') return 2;
if(c=='G') return 3;
return 4;
}
void insert1(string s,int ids){
int p=1;
for(int i=0;i<(int)s.size();i++){
if(!tree1[p][id(s[i])]){
tree1[p][id(s[i])]=++cnt1;
}
p=tree1[p][id(s[i])];
}
item[p].push_back(ids);
}
void insert2(string s,int ids){
int p=1;
for(int i=(int)s.size()-1;i>=0;i--){
if(!tree2[p][id(s[i])]){
tree2[p][id(s[i])]=++cnt2;
}
p=tree2[p][id(s[i])];
}
plc[ids]=p;
}
int search1(string s){
int p=1;
for(int i=0;i<(int)s.size();i++){
if(!p) return 0;
p=tree1[p][id(s[i])];
}
return p;
}
int search2(string s){
int p=1;
for(int i=(int)s.size()-1;i>=0;i--){
if(!p) return 0;
p=tree2[p][id(s[i])];
}
return p;
}
void dfs_t1(int u,int fath){
l1[u]=++dfn_cnt1;
idfn[dfn_cnt1]=u;
fa1[u]=fath,dep1[u]=dep1[fath]+1;
siz1[u]=item[u].size();
for(int i=1;i<=4;i++){
int v=tree1[u][i];
if(v){
dfs_t1(v,u);
siz1[u]+=siz1[v];
if(siz1[v]>=siz1[hson1[u]]){
hson1[u]=v;
}
}
}
r1[u]=dfn_cnt1;
}
void dfs_t2(int u){
l2[u]=++dfn_cnt2;
for(int i=1;i<=4;i++){
int v=tree2[u][i];
if(v){
dfs_t2(v);
}
}
r2[u]=dfn_cnt2;
}
void merge_t1(int u,int type){
for(int i=1;i<=4;i++){
int v=tree1[u][i];
if(v && v!=hson1[u]){
merge_t1(v,0);
}
}
if(hson1[u]){
merge_t1(hson1[u],1);
for(int i=l1[u];i<l1[hson1[u]];i++){
for(int v:item[idfn[i]]){
bit.update(l2[plc[v]],1);
}
}
for(int i=r1[hson1[u]]+1;i<=r1[u];i++){
for(int v:item[idfn[i]]){
bit.update(l2[plc[v]],1);
}
}
}
else{
for(int i=l1[u];i<=r1[u];i++){
for(int v:item[idfn[i]]){
bit.update(l2[plc[v]],1);
}
}
}
for(auto q:query[u]){
ans[q.id]=bit.query(r2[q.plc])-bit.query(l2[q.plc]-1);
}
if(!type){
for(int i=l1[u];i<=r1[u];i++){
for(int v:item[idfn[i]]){
bit.update(l2[plc[v]],-1);
}
}
}
}
int main(){
ios::sync_with_stdio(0);
cin.tie(0);
cin>>n>>q;
for(int i=1;i<=n;i++){
string s;cin>>s;
insert1(s,i);
insert2(s,i);
}
for(int i=1;i<=q;i++){
string a,b;cin>>a>>b;
int p1=search1(a),p2=search2(b);
if(p1 && p2) query[p1].push_back((Query){p2,i});
}
dfs_t1(1,0);
dfs_t2(1);
merge_t1(1,1);
for(int i=1;i<=q;i++){
cout<<ans[i]<<"\n";
}
}
详细
Subtask #1:
score: 0
Judgement Failed
Test #1:
score: 0
Judgement Failed
input:
100 100 A G AGC AUA C CCA CGGAG CCGAG GACA UCAAC CUUAU AC A CGUA UAUG UGCGA GCU GUUAU UAAU A UAA U CGCCC GCG U AUUC GACA CC AG GUCGU UUCA AGGC G CU UG CUUA CUAU AA A GUUG GGU UU C GCUG C GUGGA C UAU UAG GC GUU GC UCUCA U AA AG C GGU GC CCUG CCUU GG CAGCU UAGGU GGCUC CUACG UGC UU UAAUG UGGCA CAA UGAG...
output:
result:
Subtask #2:
score: 0
Skipped
Dependency #1:
0%
Subtask #3:
score: 0
Skipped
Dependency #1:
0%
Subtask #4:
score: 0
Skipped
Dependency #1:
0%