QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#353964 | #7839. 虹 | NATURAL6 | 0 | 656ms | 693256kb | C++14 | 4.0kb | 2024-03-14 19:57:21 | 2024-03-14 19:57:21 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
inline int qread()
{
int a=0,f=1;char ch=getchar();
while(!isdigit(ch)){if(ch=='-')f=-1;ch=getchar();}
while(isdigit(ch)){(a*=10)+=(ch^48);ch=getchar();}
return a*f;
}
int n,m,a[80010],OP[80010],L[80010],R[80010],vis[80010];
int cl,c[80010],ed[80010];
int dep[80010],fa[80010],st[17][80010],F[17][80010],ST[17][80010];
int gcd[80010],P,pri[80010];
vector<int>e[80010],Q[80010],Qs[80010];
vector< pair<int,int> >pre[80010],suf[80010];
bitset<80001>S[80001],cx,Z;
inline int cmp(int x,int y){return dep[x]<dep[y]?x:y;}
inline void U(int x,int p)
{
if(x==1)return ;
for(int i=x;i<=n;i+=x)Z[i]=a[gcd[i]*=p]&1;
return ;
}
inline void M(int x,int p)
{
if(x==1)return ;
for(int i=x;i<=n;i+=x)Z[i]=a[gcd[i]/=p]&1;
return ;
}
inline void dfs(int x,int h)
{
if(!vis[x])
{
for(int i:Qs[x])S[i]=Z;
vis[x]=1;
}
if(h==P+1)return ;
if(1ll*x*pri[h]>n)return ;
for(long long y=1;1ll*x*y<=n;y*=pri[h])
{
U(y,pri[h]);
dfs(x*y,h+1);
}
for(long long y=1;1ll*x*y<=n;y*=pri[h])M(y,pri[h]);
return ;
}
inline void dfss(int rt,int da)
{
dep[rt]=dep[da]+1;
st[0][rt]=rt;fa[rt]=da;
F[0][rt]=da;ST[0][rt]=rt;
for(int i=1;i<=16;++i)F[i][rt]=F[i-1][F[i-1][rt]];
for(int i:e[rt])
{
if(i==da)continue;
dfss(i,rt);
}
return ;
}
inline int get_lca(int x,int y)
{
if(!x||!y)return x|y;
if(dep[x]<dep[y])swap(x,y);
for(int i=16;~i;--i)while(dep[F[i][x]]>=dep[y])x=F[i][x];
if(x==y)return x;
for(int i=16;~i;--i)while(F[i][x]^F[i][y])x=F[i][x],y=F[i][y];
return F[0][x];
}
inline void dfsss(int rt,int da)
{
cx.set(rt);
for(int i:Q[rt])S[i]=S[i]^cx;
for(int i:e[rt])
{
if(i==da)continue;
dfsss(i,rt);
}
cx.reset(rt);
return ;
}
inline int get_min(int l,int r)
{
int s=31-__builtin_clz(r-l+1);
return cmp(st[s][l],st[s][r-(1<<s)+1]);
}
inline int get_range_lca(int l,int r)
{
int s=31-__builtin_clz(r-l+1);
return get_lca(ST[s][l],ST[s][r-(1<<s)+1]);
}
signed main()
{
n=qread(),m=qread();
cl=min(n,(int)sqrt(n)+1);
// cl=n;
for(int i=1;i<=n;++i)a[i]=qread(),ed[c[i]=(i-1)/cl+1]=i;
for(int i=1,u,v;i<n;++i)
{
u=qread(),v=qread();
e[u].emplace_back(v);
e[v].emplace_back(u);
}
dfss(1,0);
for(int i=1;i<=16;++i)for(int j=1;j+(1<<i)-1<=n;++j)
{
st[i][j]=cmp(st[i-1][j],st[i-1][j+(1<<(i-1))]);
ST[i][j]=get_lca(ST[i-1][j],ST[i-1][j+(1<<(i-1))]);
}
for(int i=1;i<=m;++i)
{
OP[i]=qread();L[i]=qread();R[i]=qread();
if(OP[i]==2)Qs[qread()].emplace_back(i);
else
{
Q[get_lca(L[i],R[i])].emplace_back(i);
if(c[L[i]]==c[R[i]])
{
cx.reset();
for(int j=L[i],p;j<=R[i];++j)
{
p=j;
while(!cx[p])cx.set(p),p=fa[p];
}
S[i]=cx;
}
else
{
pre[ed[c[L[i]]]].emplace_back(make_pair(L[i],i));
suf[ed[c[L[i]]]].emplace_back(make_pair(R[i],i));
}
}
}
for(int I=1,i,lp,p;I<=c[n];++I)
{
i=ed[I];
sort(pre[i].begin(),pre[i].end());
sort(suf[i].begin(),suf[i].end());
reverse(pre[i].begin(),pre[i].end());
cx.reset();lp=p=i;
while(!cx[p])cx.set(p),p=fa[p];
for(pair<int,int>j:pre[i])
{
if(lp>j.first)
{
while(lp>j.first)
{
p=--lp;
while(!cx[p])cx.set(p),p=fa[p];
}
}
S[j.second]=S[j.second]|cx;
}
cx.reset();lp=p=i;
while(!cx[p])cx.set(p),p=fa[p];
for(pair<int,int>j:suf[i])
{
if(lp<j.first)
{
while(lp<j.first)
{
p=++lp;
while(!cx[p])cx.set(p),p=fa[p];
}
}
S[j.second]=S[j.second]|cx;
}
}
cx.reset();
dfsss(1,0);
for(int i=2;i<=n;++i)
{
if(!vis[i])pri[++P]=i;
for(int j=1;j<=P&&pri[j]*i<=n;++j)
{
vis[pri[j]*i]=1;
if(i%pri[j]==0)break;
}
}
for(int i=1;i<=n;++i)Z[i]=a[1]&1,vis[i]=0;
dfs(1,1);
cx.reset();
for(int i=1,x;i<=m;++i)
{
// for(int j=1;j<=n;++j)cerr<<S[i][j];puts("");
if(OP[i]==1)cx^=S[i];
else
{
x=(((cx&S[i])>>(L[i]-1))<<(80000-R[i]+L[i]-1)).count();
printf("%lld\n",(1ll*19901991*x+(R[i]-L[i]+1-x))%20242024);
}
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Subtask #1:
score: 0
Wrong Answer
Test #1:
score: 0
Wrong Answer
time: 7ms
memory: 23708kb
input:
998 1000 955556485 952505211 899166521 258704448 894183248 636280051 62949347 983956660 113872828 588367167 208142006 665025449 944228063 284736189 169202015 56096447 404419923 30158095 111191865 717455344 790159420 391379127 208279658 426780799 886604643 940903663 618716147 773652834 385881251 1593...
output:
138 17522362 21 153 363 689 763 16501770 4260565 316 18922410 159 469 14662048 913 204 18882074 5121265 553 368 523 6481455 240 656 234 65 62 8181013 9361573 426 10721248 437 195 423 382 13 201 9221347 19902375 220933 7681170 158 100 18882291 115 75 19901992 8861208 670 45 14161909 449 114 698 16702...
result:
wrong answer 1st lines differ - expected: '16521790', found: '138'
Subtask #2:
score: 0
Wrong Answer
Test #4:
score: 0
Wrong Answer
time: 656ms
memory: 693256kb
input:
65531 65535 968854923 932574892 192297572 866236747 654755663 148562561 273214896 947434573 938626677 992982166 219888853 229840279 676071061 383387319 372883953 729287797 601010887 31942080 990584163 823724544 181337075 918252129 896876911 768539961 357780649 890577681 819641335 320266037 55445939 ...
output:
1856 2678 19909941 19919967 19582462 29406 18906745 8086 56293 45313 9098227 43143 480 9413 12137094 19571282 14133329 21323 19927824 4336987
result:
wrong answer 1st lines differ - expected: '2662122', found: '1856'
Subtask #3:
score: 0
Skipped
Dependency #2:
0%
Subtask #4:
score: 0
Skipped
Dependency #1:
0%
Subtask #5:
score: 0
Skipped
Dependency #1:
0%