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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#427775 | #7782. Ursa Minor | 2745518585 | WA | 1479ms | 36080kb | C++20 | 3.8kb | 2024-06-01 15:35:37 | 2024-06-01 15:35:38 |
Judging History
answer
#include<cstdio>
#include<algorithm>
using namespace std;
typedef long long ll;
const int N=300001,M=500;
const ll B=147258369,P=1e9+7;
int n,m,q,a[N],b[N];
ll pw[N],ivpw[N],pws[N];
int gcd(int a,int b)
{
if(b==0) return a;
return gcd(b,a%b);
}
void exgcd(ll a,ll b,ll &x,ll &y)
{
if(b==0) x=1,y=0;
else exgcd(b,a%b,y,x),y-=a/b*x;
}
ll inv(ll a)
{
a=(a%P+P)%P;
ll x,y;
exgcd(a,P,x,y);
x=(x%P+P)%P;
return x;
}
namespace ST
{
int f[N][21],lg[N];
void init()
{
for(int i=1;i<=m;++i) f[i][0]=b[i];
for(int i=1;i<=20;++i)
{
for(int j=(1<<i);j<=min((1<<(i+1))-1,m);++j) lg[j]=i;
}
for(int i=1;i<=20;++i)
{
for(int j=1;j<=m;++j)
{
if(j+(1<<i)-1<=m) f[j][i]=gcd(f[j][i-1],f[j+(1<<(i-1))][i-1]);
}
}
}
int sum(int x,int y)
{
if(x>y) swap(x,y);
return gcd(f[x][lg[y-x]],f[y-(1<<lg[y-x])+1][lg[y-x]]);
}
}
struct sgt0
{
int p;
ll b[M+1];
void add(int x,ll k)
{
b[x/M]=(b[x/M]+k)%P;
}
ll sum(int x)
{
ll s=0;
for(int i=0;i<=x/M-1;++i) s=(s+b[i])%P;
for(int i=x/M*M;i<=x;++i) s=(s+a[i]*(i%p==0))%P;
return s;
}
}S0[M+1];
struct sgt1
{
int p;
ll b[M+1];
void add(int x,ll k)
{
b[x/M]=(b[x/M]+k)%P;
}
ll sum(int x)
{
ll s=0;
for(int i=0;i<=x/M-1;++i) s=(s+b[i])%P;
for(int i=x/M*M;i<=x;++i) s=(s+a[i]*pw[i%p]%P)%P;
return s;
}
}S1[M+1];
struct sgt2
{
ll a[M+1],b[N];
void add(int x,ll k)
{
for(int i=0;i<=x/M-1;++i) a[i]=(a[i]+k)%P;
for(int i=x/M*M;i<=x;++i) b[i]=(b[i]+k)%P;
}
ll sum(int x)
{
return ((x/M>0?a[x/M-1]:0)+b[x])%P;
}
}S2;
int main()
{
scanf("%d%d%d",&n,&m,&q);
for(int i=1;i<=n;++i)
{
scanf("%d",&a[i]);
}
for(int i=1;i<=m;++i)
{
scanf("%d",&b[i]);
}
pw[0]=1;
for(int i=1;i<=n;++i) pw[i]=pw[i-1]*B%P;
ivpw[n]=inv(pw[n]);
for(int i=n;i>=1;--i) ivpw[i-1]=ivpw[i]*B%P;
pws[0]=pw[0];
for(int i=1;i<=n;++i) pws[i]=(pws[i-1]+pw[i])%P;
ST::init();
for(int i=1;i<=M;++i)
{
S0[i].p=S1[i].p=i;
for(int j=1;j<=n;++j)
{
if(j%i==0) S0[i].add(j,a[j]);
S1[i].add(j,a[j]*pw[j%i]%P);
}
}
for(int i=1;i<=n;++i)
{
S2.add(i,a[i]*pw[i]%P);
}
for(int i=1;i<=q;++i)
{
char z;
scanf("%s",&z);
if(z=='U')
{
int x,k;
scanf("%d%d",&x,&k);
for(int j=1;j<=M;++j)
{
if(x%j==0) S0[j].add(x,(k-a[x]));
S1[j].add(x,(k-a[x])*pw[x%j]%P);
}
S2.add(x,(k-a[x])*pw[x]%P);
a[x]=k;
}
else if(z=='Q')
{
int l1,r1,l2,r2;
scanf("%d%d%d%d",&l1,&r1,&l2,&r2);
int k=gcd(ST::sum(l2,r2),r1-l1+1);
ll w,s;
if(k<=M)
{
w=(S0[k].sum(r1)-S0[k].sum(l1-1))%P;
s=(S1[k].sum(r1)-S1[k].sum(l1-1))%P;
}
else
{
for(int i=0;i<=n;i+=k)
{
if(i>=l1&&i<=r1) w=(w+a[i])%P;
int l=max(i,l1),r=min(i+k-1,r1);
if(l<=r)
{
s=(s+(S2.sum(r)-S2.sum(l-1))*ivpw[l-l%k]%P)%P;
}
}
}
w=(w*pws[k-1]%P+P)%P;
s=(s%P+P)%P;
if(w==s) printf("Yes\n");
else printf("No\n");
}
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 17976kb
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: 0ms
memory: 19960kb
input:
1 1 1 0 1 Q 1 1 1 1
output:
Yes
result:
ok "Yes"
Test #3:
score: 0
Accepted
time: 623ms
memory: 18000kb
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: 252ms
memory: 32252kb
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: 249ms
memory: 28208kb
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
Wrong Answer
time: 1479ms
memory: 36080kb
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...
output:
No No No No No No No No No No No No No No Yes No No No Yes No No No No No No No No No No No No No No Yes No No No No No Yes Yes Yes No No No No No No No No Yes 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 No No No No No No No No Yes No Yes Yes No No No No No No No No N...
result:
wrong answer 1043rd words differ - expected: 'Yes', found: 'No'