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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#369215 | #7782. Ursa Minor | Perta | RE | 89ms | 32676kb | C++14 | 3.6kb | 2024-03-27 22:07:12 | 2024-03-27 22:07:23 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const int N=2e5+10,M=500,maxj=20;
const int base=233,mod=1e9+9;
int n,m,K,q,a[N],b[N],s0[M][M];
int lg[N],GCD[21][N];
int pw[N],pre[N],inv[N],sum[M][M];
int rb[N],bel[N],tot1[N],tot2[N];
vector<int>d[N];
inline void upd(int &x,int y) {x+=y;x=(x>=mod)?x-mod:x;}
inline int add(int x,int y) {upd(x,y);return x;}
int ksm(int x,int y)
{
int res=1;
for(;y;y>>=1)
{
if(y&1) res=1ll*res*x%mod;
x=1ll*x*x%mod;
}
return res;
}
void add(int x)
{
for(int v:d[x]) upd(s0[v][bel[x]],a[x]);
int T=1ll*a[x]*pw[x]%mod;
for(int i=x;i<=rb[bel[x]];i++) upd(tot1[i],T);
for(int i=bel[x]+1;i<=bel[n];i++) upd(tot2[i],T);
for(int i=1;i<=K;i++)
upd(sum[i][bel[x]],1ll*a[x]*pw[x%i]%mod);
}
int query(int l,int r)
{
int p=lg[r-l+1];
return __gcd(GCD[p][l],GCD[p][r-(1<<p)+1]);
}
int S0(int x,int l,int r)
{
int res=0;
for(int i=((l-1)/x+1)*x;i<=r;i+=x) upd(res,a[i]);
return res;
}
int query0(int x,int l,int r)
{
int res=0;
if(x<=K&&bel[l]<bel[r])
{
res=S0(x,l,rb[bel[l]]);
for(int i=bel[l]+1;i<bel[r];i++) upd(res,s0[x][i]);
upd(res,S0(x,rb[bel[r]-1]+1,r));
}
else res=S0(x,l,r);
return res;
}
int S1(int x,int l,int r)
{
int res=0;
for(int i=l;i<=r;i++)
upd(res,1ll*a[i]*pw[i%x]%mod);
// for(int i=l,j=l%x;i<=r;i++,j=(j+1==x?0:j+1)) upd(res,1ll*a[i]*pw[j]%mod);
return res;
}
int query2(int x) {return add(tot1[x],tot2[bel[x]]);}
int S2(int l,int r) {return add(query2(r),mod-query2(l-1));}
int main()
{
// freopen("a.in","r",stdin);
// freopen("a.out","w",stdout);
pw[0]=pre[0]=inv[0]=1;
for(int i=2;i<N;i++) lg[i]=lg[i>>1]+1;
for(int i=1;i<N;i++)
pw[i]=1ll*base*pw[i-1]%mod,pre[i]=add(pw[i],pre[i-1]),inv[i]=ksm(pw[i],mod-2);
scanf("%d%d%d",&n,&m,&q);
K=__builtin_sqrt(n);
for(int i=1;i<=n;i++) scanf("%d",a+i);
for(int i=1;i<=m;i++) scanf("%d",GCD[0]+i);
for(int i=1;i<=maxj;i++)
for(int j=1;(1<<i)+j-1<=m;j++)
GCD[i][j]=__gcd(GCD[i-1][j],GCD[i-1][(1<<(i-1))+j]);
for(int i=1;i<=K;i++)
for(int j=i;j<=n;j+=i) d[j].push_back(i);
for(int i=1;i<=n;i++)
bel[i]=i/K,rb[bel[i]]=i;
// cerr<<"He "<<endl;
// return 0;
// cerr<<K<<endl;
for(int i=1;i<=n;i++) add(i);
// cerr<<"He"<<endl;
// return 0;
char op;
int l,r,s,t;
while(q--)
{
scanf("\n%c%d%d",&op,&l,&r);
if(op=='U')
a[l]=add(r,mod-a[l]),add(l),a[l]=r;
else
{
scanf("%d%d",&s,&t);
int k=__gcd(r-l+1,query(s,t)),ned=1ll*query0(k,l,r)*pre[k-1]%mod,S=0;
assert(k);
if(bel[l]==bel[r]) S=S1(k,l,r);
else if(k<=K)
// if(bel[l]==bel[r]) S=S1(k,l,r);
// else
{
S=S1(k,l,rb[bel[l]]);
for(int i=bel[l]+1;i<bel[r];i++) upd(S,sum[k][i]);
upd(S,S1(k,rb[bel[r]-1]+1,r));
}
else
{
if(l/k==r/k)
S=1ll*S2(l,r)*inv[l/k*k]%mod;
else
{
int Mx=((l-1)/k+1)*k;
S=1ll*S2(l,(Mx-1)*inv[l/k*k])%mod;
for(int i=Mx,j=i/k*k;i<=r;i+=k)
upd(S,1ll*S2(i,min(r,i+k-1))*inv[i]%mod);
}
}
puts(ned==S?"Yes":"No");
}
// return 0;
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 28ms
memory: 20752kb
input:
6 4 5 1 1 4 5 1 4 3 3 2 4 Q 1 5 1 2 Q 2 5 3 4 U 5 2 Q 1 6 1 2 Q 2 5 3 4
output:
Yes No No Yes
result:
ok 4 tokens
Test #2:
score: 0
Accepted
time: 31ms
memory: 15612kb
input:
1 1 1 0 1 Q 1 1 1 1
output:
Yes
result:
ok "Yes"
Test #3:
score: 0
Accepted
time: 89ms
memory: 23952kb
input:
2000 2000 200000 1 1 2 0 0 2 0 2 0 0 0 0 0 2 2 1 2 0 0 2 2 2 1 0 1 2 1 2 0 0 1 1 1 2 0 0 2 2 2 2 0 2 0 0 2 1 2 0 0 1 2 2 1 0 2 0 0 0 1 2 2 1 2 2 0 0 1 1 1 0 0 2 0 0 1 1 0 2 2 2 1 0 0 1 0 1 2 2 2 1 1 2 2 1 2 1 0 2 2 3 1 3 2 3 1 0 1 2 0 1 1 1 0 2 2 3 2 0 3 2 3 3 1 2 3 1 2 0 1 0 3 1 0 0 2 0 1 2 1 3 2 2...
output:
Yes Yes No Yes Yes No No No Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes No Yes Yes No No No No No Yes No No No Yes Yes No Yes No Yes Yes Yes Yes Yes Yes Yes Yes Yes No Yes Yes No Yes Yes Yes No No Yes No Yes No No No Yes Yes Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes No...
result:
ok 100554 tokens
Test #4:
score: 0
Accepted
time: 88ms
memory: 32280kb
input:
1 200000 200000 998244353 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...
output:
Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes ...
result:
ok 100240 tokens
Test #5:
score: 0
Accepted
time: 61ms
memory: 32676kb
input:
6 131072 200000 0 0 0 0 1000000000 1000000000 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 ...
output:
Yes Yes Yes No No No Yes No No No No No Yes Yes No Yes No Yes Yes Yes No No No No No No No Yes No No No Yes Yes Yes Yes Yes Yes Yes Yes No No No No Yes Yes No No No No No No No No No No No No No No No No No No No Yes No No No No No No No No No No No No No No No Yes No No No No No No Yes Yes No Yes N...
result:
ok 100021 tokens
Test #6:
score: -100
Runtime Error
input:
200000 200000 200000 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877 490339877...