QOJ.ac
QOJ
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 |
---|---|---|---|---|---|---|---|---|---|
#735763 | #9479. And DNA | HuTao | AC ✓ | 0ms | 4100kb | C++14 | 1.2kb | 2024-11-11 21:35:31 | 2024-11-11 21:35:32 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
typedef long long LL;
const int P = 998244353;
LL a[3][3], b[3];
inline void Mul(LL a[][3], LL b[][3], LL c[][3])
{
static LL t[3][3];
memset(t, 0, sizeof t);
for(int i = 0; i < 3; i ++ )
for(int j = 0; j < 3; j ++ )
for(int k = 0; k < 3; k ++ )
t[i][k] = (t[i][k] + a[i][j] * b[j][k]) % P;
memcpy(c, t, sizeof t);
}
inline void Mul(LL a[], LL b[][3], LL c[])
{
static LL t[3];
memset(t, 0, sizeof t);
for(int i = 0; i < 3; i ++ )
for(int j = 0; j < 3; j ++ )
t[j] = (t[j] + a[i] * b[i][j]) % P;
memcpy(c, t, sizeof t);
}
inline LL ksm(LL n)
{
memset(a, 0, sizeof a);
memset(b, 0, sizeof b);
a[0][1] = a[1][2] = a[1][0] = a[2][0] = 1;
b[0] = 1;
while(n)
{
if(n & 1) Mul(b, a, b);
Mul(a, a, a);
n >>= 1;
}
return b[0];
}
LL g;
unordered_map<int, LL> f;
inline LL DP(int m)
{
if(m == 0) return 1;
if(f.count(m)) return f[m];
if(m & 1) return f[m] = DP(m >> 1) * g % P;
else return f[m] = (DP((m >> 1) - 1) + DP(m >> 1)) % P;
}
int main()
{
int n, m;
scanf("%d%d", &n, &m);
g = (ksm(n) * 2 + ksm(n - 3)) % P;
// printf("!%lld\n", g);
printf("%lld\n", DP(m));
return 0;
}
詳細信息
Test #1:
score: 100
Accepted
time: 0ms
memory: 3812kb
input:
3 2
output:
4
result:
ok "4"
Test #2:
score: 0
Accepted
time: 0ms
memory: 3808kb
input:
3 0
output:
1
result:
ok "1"
Test #3:
score: 0
Accepted
time: 0ms
memory: 3800kb
input:
100 100
output:
343406454
result:
ok "343406454"
Test #4:
score: 0
Accepted
time: 0ms
memory: 3828kb
input:
686579306 119540831
output:
260602195
result:
ok "260602195"
Test #5:
score: 0
Accepted
time: 0ms
memory: 3852kb
input:
26855095 796233790
output:
492736984
result:
ok "492736984"
Test #6:
score: 0
Accepted
time: 0ms
memory: 4096kb
input:
295310488 262950628
output:
503008241
result:
ok "503008241"
Test #7:
score: 0
Accepted
time: 0ms
memory: 3764kb
input:
239670714 149827706
output:
994702969
result:
ok "994702969"
Test #8:
score: 0
Accepted
time: 0ms
memory: 4076kb
input:
790779949 110053353
output:
898252188
result:
ok "898252188"
Test #9:
score: 0
Accepted
time: 0ms
memory: 3740kb
input:
726600542 795285932
output:
183726777
result:
ok "183726777"
Test #10:
score: 0
Accepted
time: 0ms
memory: 3824kb
input:
957970519 585582861
output:
298814018
result:
ok "298814018"
Test #11:
score: 0
Accepted
time: 0ms
memory: 3856kb
input:
93349859 634036506
output:
110693443
result:
ok "110693443"
Test #12:
score: 0
Accepted
time: 0ms
memory: 3808kb
input:
453035113 34126396
output:
306244220
result:
ok "306244220"
Test #13:
score: 0
Accepted
time: 0ms
memory: 4100kb
input:
31994526 100604502
output:
930620701
result:
ok "930620701"
Test #14:
score: 0
Accepted
time: 0ms
memory: 3868kb
input:
234760741 249817734
output:
440195858
result:
ok "440195858"
Test #15:
score: 0
Accepted
time: 0ms
memory: 3832kb
input:
542621111 646412689
output:
207377992
result:
ok "207377992"
Test #16:
score: 0
Accepted
time: 0ms
memory: 3760kb
input:
28492783 602632297
output:
65234506
result:
ok "65234506"
Test #17:
score: 0
Accepted
time: 0ms
memory: 3796kb
input:
213500301 768820204
output:
540205113
result:
ok "540205113"
Test #18:
score: 0
Accepted
time: 0ms
memory: 3800kb
input:
697808101 753041955
output:
93561295
result:
ok "93561295"
Test #19:
score: 0
Accepted
time: 0ms
memory: 3824kb
input:
585126464 450455977
output:
91109717
result:
ok "91109717"
Test #20:
score: 0
Accepted
time: 0ms
memory: 3800kb
input:
236696315 482334538
output:
925575199
result:
ok "925575199"
Test #21:
score: 0
Accepted
time: 0ms
memory: 3856kb
input:
632719214 298704996
output:
358926097
result:
ok "358926097"
Test #22:
score: 0
Accepted
time: 0ms
memory: 3784kb
input:
869119333 933404114
output:
318501108
result:
ok "318501108"
Test #23:
score: 0
Accepted
time: 0ms
memory: 4096kb
input:
6977994 814763202
output:
585332987
result:
ok "585332987"
Test #24:
score: 0
Accepted
time: 0ms
memory: 4096kb
input:
3 1
output:
3
result:
ok "3"
Test #25:
score: 0
Accepted
time: 0ms
memory: 3796kb
input:
3 1000000000
output:
279679226
result:
ok "279679226"
Test #26:
score: 0
Accepted
time: 0ms
memory: 4080kb
input:
4 0
output:
1
result:
ok "1"
Test #27:
score: 0
Accepted
time: 0ms
memory: 3796kb
input:
4 1
output:
2
result:
ok "2"
Test #28:
score: 0
Accepted
time: 0ms
memory: 4092kb
input:
4 1000000000
output:
1755648
result:
ok "1755648"
Test #29:
score: 0
Accepted
time: 0ms
memory: 3796kb
input:
1000000000 0
output:
1
result:
ok "1"
Test #30:
score: 0
Accepted
time: 0ms
memory: 3844kb
input:
1000000000 1
output:
696798313
result:
ok "696798313"
Test #31:
score: 0
Accepted
time: 0ms
memory: 3792kb
input:
1000000000 1000000000
output:
703786301
result:
ok "703786301"
Extra Test:
score: 0
Extra Test Passed