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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#209098 | #6325. Peaceful Results | c20230201 | RE | 522ms | 120312kb | C++14 | 2.6kb | 2023-10-10 09:53:39 | 2023-10-10 09:53:39 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll maxn=3e6+5, mo=998244353;
ll A[3][3];
ll Y[6], a[6][7];
ll lcm(ll a,ll b) {
return a*b/__gcd(a,b);
}
void Guass() {
for(ll i=0;i<6;i++) {
ll id=0;
for(ll j=i;j<6;j++) if(a[j][i]) id=j;
swap(a[id],a[i]);
for(ll j=0;j<6;j++) {
if(j==i) continue;
if(a[j][i]) {
ll t=lcm(a[i][i],a[j][i]);
ll t1=t/a[i][i], t2=t/a[j][i];
for(ll k=0;k<7;k++) a[i][k]*=t1, a[j][k]*=t2;
for(ll k=0;k<7;k++) a[j][k]=a[j][k]-a[i][k];
}
}
}
for(ll i=0;i<6;i++) {
if(a[i][6]%a[i][i]) {
cout<<"0\n";
exit(0);
}
Y[i]=a[i][6]/a[i][i];
}
return ;
}
const ll N=3e6;
ll rev[maxn], ta[maxn], tb[maxn], tc[maxn], fac[maxn], ifac[maxn];
ll qpow(ll a,ll p) {
ll res=1;
while(p) {
if(p&1) res=res*a%mo;
p>>=1, a=a*a%mo;
}
return res;
}
void NTT(ll c[maxn],ll n,ll o) {
for(ll i=0;i<n;i++) if(rev[i]>i) swap(c[i],c[rev[i]]);
for(ll len=1;len<n;len<<=1) {
ll wn=qpow(3,(mo-1)/len/2);
if(o==-1) wn=qpow(wn,mo-2);
for(ll l=0;l<n;l+=2*len) {
for(ll r=l,wx=1; r<l+len; r++,wx=wx*wn%mo) {
ll x=c[r], y=wx*c[r+len]%mo;
c[r]=(x+y)%mo, c[r+len]=(x-y+mo)%mo;
}
}
}
if(o==-1) {
ll inv=qpow(n,mo-2)%mo;
for(ll i=0;i<n;i++) c[i]=c[i]*inv%mo;
}
return ;
}
int main() {
ios::sync_with_stdio(false);
cin.tie(0), cout.tie(0);
fac[0]=1;
for(ll i=1;i<=N;i++) fac[i]=fac[i-1]*i%mo;
ifac[N]=qpow(fac[N],mo-2);
for(ll i=N-1;i>=0;i--) ifac[i]=ifac[i+1]*(i+1)%mo;
ll n; cin>>n;
for(ll i=0;i<3;i++) {
for(ll j=0;j<3;j++) {
cin>>A[i][j];
}
}
a[0][0]=a[0][2]=a[0][4]=1;
a[0][6]=A[0][0]-A[0][2];
a[1][1]=a[1][3]=a[1][5]=1;
a[1][6]=A[0][1]-A[0][2];
a[2][0]=a[2][3]=1, a[2][2]=a[2][5]=-1;
a[2][6]=A[1][0]-A[1][2];
a[3][1]=a[3][4]=1, a[3][2]=a[3][5]=-1;
a[3][6]=A[1][1]-A[1][2];
a[4][0]=a[4][5]=1, a[4][3]=a[4][4]=-1;
a[4][6]=A[2][0]-A[2][2];
a[5][1]=a[5][2]=1, a[5][3]=a[5][4]=-1;
a[5][6]=A[2][1]-A[2][2];
Guass();
ll nn=n;
n=A[0][2];
ll l1=max(-Y[0],-Y[1]), l2=max(-Y[2],-Y[3]), l3=max(-Y[4],-Y[5]);
l1=max(0ll,l1), l2=max(0ll,l2), l3=max(0ll,l3);
ll len=1, px=0;
while(len<=3*n) len<<=1, px++;
for(ll i=1;i<len;i++) rev[i]=(rev[i>>1]>>1)|((i&1)<<px-1);
for(ll i=l1;i<=n;i++) ta[i]=ifac[i]*ifac[i+Y[0]]%mo*ifac[i+Y[1]]%mo;
for(ll i=l2;i<=n;i++) tb[i]=ifac[i]*ifac[i+Y[2]]%mo*ifac[i+Y[3]]%mo;
for(ll i=l3;i<=n;i++) tc[i]=ifac[i]*ifac[i+Y[4]]%mo*ifac[i+Y[5]]%mo;
NTT(ta,len,1), NTT(tb,len,1), NTT(tc,len,1);
for(ll i=0;i<len;i++) ta[i]=ta[i]*tb[i]%mo*tc[i]%mo;
NTT(ta,len,-1);
cout<<ta[n]*fac[nn]%mo<<'\n';
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 27ms
memory: 55032kb
input:
2 2 0 0 1 1 0 1 0 1
output:
2
result:
ok 1 number(s): "2"
Test #2:
score: 0
Accepted
time: 27ms
memory: 51136kb
input:
3 0 1 2 3 0 0 1 1 1
output:
0
result:
ok 1 number(s): "0"
Test #3:
score: 0
Accepted
time: 148ms
memory: 69632kb
input:
333333 111111 111111 111111 111111 111111 111111 111111 111111 111111
output:
383902959
result:
ok 1 number(s): "383902959"
Test #4:
score: 0
Accepted
time: 514ms
memory: 119180kb
input:
1500000 500000 500000 500000 500000 500000 500000 500000 500000 500000
output:
355543262
result:
ok 1 number(s): "355543262"
Test #5:
score: 0
Accepted
time: 522ms
memory: 120312kb
input:
1499999 499999 499999 500001 499999 499999 500001 499999 499999 500001
output:
934301164
result:
ok 1 number(s): "934301164"
Test #6:
score: -100
Runtime Error
input:
1500000 1 0 1499999 1499999 1 0 0 1499999 1