QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#326410 | #5738. Square Sum | ushg8877 | WA | 35ms | 3724kb | C++14 | 1.2kb | 2024-02-13 00:10:31 | 2024-02-13 00:10:32 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define MP make_pair
mt19937 rnd(time(0));
ll pow(int a,int b){ll r=1;while(b--)r=r*a;return r;}
ll g(int p,int k,int z){
if(k==0) return 0;
if(k==1){
if(z) return p-(p%4==1?1:-1);
else return (p%4==1?2*p-2:0);
}if(p==2&&k<=3){
int ans=0;
for(int i=1;i<(1<<k);i++) for(int j=1;j<(1<<k);j++)
if(((i&1)||(j&1))&&(i*i+j*j)%(1<<k)==z) ans++;
return ans;
}return g(p,k-1,z%pow(p,k-1))*p;
}
ll f(int p,int k,int z){
if(k==0) return 1;
else if(p==2&&k<=3){
int ans=0;
for(ll i=0;i<(1<<k);i++) for(ll j=0;j<(1<<k);j++)
if((i*i+j*j)%(1<<k)==z) ans++;
return ans;
}else if(k==1){
if(z) return p-(p%4==1?1:-1);
else return (p%4==1?2*p-1:1);
}else return g(p,k,z)+p*p*(z%(p*p)==0?f(p,k-2,z/p/p):0);
}// solve the equivment x^2+y^2==z (mod p^k)
int main(){
ios::sync_with_stdio(false);
map<int,int> mp;
int m,_;
cin>>m>>_;
for(int i=2;i*i<=m;i++) if(m%i==0){
while(m%i==0) mp[i]++,m/=i;
}
if(m>1) mp[m]++;
while(_--){
ll x,ans=1;cin>>x;
for(auto p:mp) ans*=f(p.first,p.second,x%pow(p.first,p.second));
cout<<ans<<' ';
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 1ms
memory: 3660kb
input:
3 3 0 1 2
output:
1 4 4
result:
ok 3 number(s): "1 4 4"
Test #2:
score: 0
Accepted
time: 0ms
memory: 3660kb
input:
4 4 0 1 2 3
output:
4 8 4 0
result:
ok 4 number(s): "4 8 4 0"
Test #3:
score: 0
Accepted
time: 1ms
memory: 3724kb
input:
5 1 3
output:
4
result:
ok 1 number(s): "4"
Test #4:
score: -100
Wrong Answer
time: 35ms
memory: 3684kb
input:
735134400 100000 4 4 1 2 3 4 4 4 5 4 3 4 1 1 1 1 2 0 1 4 4 5 4 1 0 0 1 3 0 4 0 5 3 0 3 0 5 4 0 0 3 2 5 3 2 4 3 4 2 1 3 3 2 2 2 3 1 0 1 2 3 4 3 5 4 4 0 1 5 2 2 3 3 2 4 3 5 5 1 3 1 1 4 3 4 3 4 5 2 4 1 3 2 0 5 0 0 5 5 1 2 0 3 4 0 4 1 0 1 4 5 5 3 1 3 0 3 5 0 4 2 0 4 0 0 0 4 0 2 2 2 4 5 3 0 2 0 4 1 4 1 2...
output:
849346560 849346560 849346560 1698693120 0 849346560 849346560 849346560 3397386240 849346560 0 849346560 849346560 849346560 849346560 849346560 1698693120 30888000 849346560 849346560 849346560 3397386240 849346560 849346560 30888000 30888000 849346560 0 30888000 849346560 30888000 3397386240 0 30...
result:
wrong answer 1st numbers differ - expected: '1698693120', found: '849346560'