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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#380787#7838. 往日之影Doqe0 3ms3704kbC++141.5kb2024-04-07 12:11:232024-04-07 12:11:23

Judging History

你现在查看的是最新测评结果

  • [2024-04-07 12:11:23]
  • 评测
  • 测评结果:0
  • 用时:3ms
  • 内存:3704kb
  • [2024-04-07 12:11:23]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
int P;
long long qpow(long long a,long long b)
{
	long long ans=1;
	while(b)
	{
		if(b&1)ans=ans*a%P;
		a=a*a%P,b>>=1;
	}
	return ans;
}
struct cp
{
	long long a,b;
	cp(){}cp(int x){a=x,b=0;}cp(int x,int y){a=x,b=y;}
	cp operator+(const cp&A)const{return cp((a+A.a)%P,(b+A.b)%P);}
	cp operator-()const{return cp((P-a),(P-b));}
	cp operator-(const cp&A)const{return cp((a+P-A.a)%P,(b+P-A.b)%P);}
	cp operator*(const cp&A)const{return cp((a*A.a+P-b*A.b%P)%P,(b*A.a+a*A.b)%P);}
	cp operator*(const long long&x)const{return cp(a*x%P,b*x%P);}
};
cp qpow(cp a,long long b)
{
	cp ans=1;
	while(b)
	{
		if(b&1)ans=ans*a;
		a=a*a,b>>=1;
	}
	return ans;
}
int a[4];
int main()
{
	int T,n;
	cin>>T>>P;
	const cp I(0,1),inv2(P+1>>1,0),X(1,0);
	while(T--)
	{
		cin>>n>>a[0]>>a[1]>>a[2]>>a[3];
		//no i
		int o=a[1]+a[3]&1;
		cp ans={(o?0:2),0};
		for(int i=0;i<4;++i)if(a[i])
		{
			ans=ans+qpow(I,i)*qpow((X-I)*inv2,n-1)*a[i];//i1
			ans=ans+qpow(I,i)*qpow((X+I)*inv2,n-1)*a[i]*(o^(i&1)?P-1:1);//i-1
			ans=ans+qpow(-I,i)*qpow((X+I)*inv2,n-1)*a[i];//-i1
			ans=ans+qpow(-I,i)*qpow((X-I)*inv2,n-1)*a[i]*(o^(i&1)?P-1:1);//-i-1
		}
		for(int i=0;i<4;++i)if(a[i])//ch i
			for(int j=0;j<4;++j)if(a[j]>(i==j))//ch -i
			{
				
				if(o^(i+j&1))continue;
				long long F=1ll*a[i]*(a[j]-(i==j))%P;
				ans=ans+qpow(-I,i)*qpow(I,j)*qpow((I+X)*inv2,n-2)*qpow((X-I)*inv2,n-2)*2*F;
			}
		long long AL=ans.a*qpow(P+1>>1,2*n)%P;
		cout<<AL<<endl;
	}
}

详细

Subtask #1:

score: 0
Wrong Answer

Test #1:

score: 10
Accepted
time: 1ms
memory: 3704kb

input:

1 998244353
3
1 1 0 1

output:

0

result:

ok single line: '0'

Test #2:

score: 0
Accepted
time: 0ms
memory: 3580kb

input:

1 998244353
7
0 2 1 4

output:

998069185

result:

ok single line: '998069185'

Test #3:

score: 0
Accepted
time: 0ms
memory: 3636kb

input:

1 998244353
4
0 1 0 3

output:

0

result:

ok single line: '0'

Test #4:

score: -10
Wrong Answer
time: 1ms
memory: 3628kb

input:

1 998244353
2
1 0 1 0

output:

124780544

result:

wrong answer 1st lines differ - expected: '0', found: '124780544'

Subtask #2:

score: 0
Skipped

Dependency #1:

0%

Subtask #3:

score: 0
Skipped

Dependency #2:

0%

Subtask #4:

score: 0
Wrong Answer

Test #23:

score: 0
Wrong Answer
time: 3ms
memory: 3628kb

input:

999 999999001
2
2 0 0 0
3
3 0 0 0
4
4 0 0 0
5
5 0 0 0
6
6 0 0 0
7
7 0 0 0
8
8 0 0 0
9
9 0 0 0
10
10 0 0 0
11
11 0 0 0
12
12 0 0 0
13
13 0 0 0
14
14 0 0 0
15
15 0 0 0
16
16 0 0 0
17
17 0 0 0
18
18 0 0 0
19
19 0 0 0
20
20 0 0 0
21
21 0 0 0
22
22 0 0 0
23
23 0 0 0
24
24 0 0 0
25
25 0 0 0
26
26 0 0 0
27...

output:

374999626
874999126
359374641
919920956
691222454
586081873
33512082
496961574
790501684
206445579
708073277
492142887
486007979
21786019
802052117
198521403
854660059
658779344
904643630
538486221
357736277
949763680
94144464
342842045
695164947
276856011
552666277
813428208
572457238
910726512
177...

result:

wrong answer 1st lines differ - expected: '499999501', found: '374999626'

Subtask #5:

score: 0
Skipped

Dependency #1:

0%