Submission #42917943
Source Code Expand
N, M = map(int, input().split())
MOD = 998244353
ans = [0] * (N + 1)
ans[1] = M
ans[2] = (M * (M - 1)) % MOD
for n in range(3, N + 1):
ans[n] = (M * pow(M - 1, n - 1, MOD) % MOD - ans[n - 1]) % MOD
print(ans[-1])
Submission Info
| Submission Time | |
|---|---|
| Task | E - Distinct Adjacent |
| User | terrafarm |
| Language | PyPy3 (7.3.0) |
| Score | 475 |
| Code Size | 227 Byte |
| Status | AC |
| Exec Time | 387 ms |
| Memory | 71596 KiB |
Judge Result
| Set Name | Sample | All | ||||
|---|---|---|---|---|---|---|
| Score / Max Score | 0 / 0 | 475 / 475 | ||||
| Status |
|
|
| Set Name | Test Cases |
|---|---|
| Sample | sample_01.txt, sample_02.txt, sample_03.txt |
| All | hand_01.txt, hand_02.txt, random_01.txt, random_02.txt, random_03.txt, random_04.txt, random_05.txt, random_06.txt, random_07.txt, random_08.txt, random_09.txt, random_10.txt, random_11.txt, random_12.txt, random_13.txt, random_14.txt, random_15.txt, random_16.txt, random_17.txt, random_18.txt, random_19.txt, sample_01.txt, sample_02.txt, sample_03.txt |
| Case Name | Status | Exec Time | Memory |
|---|---|---|---|
| hand_01.txt | AC | 212 ms | 67376 KiB |
| hand_02.txt | AC | 146 ms | 66064 KiB |
| random_01.txt | AC | 383 ms | 71312 KiB |
| random_02.txt | AC | 156 ms | 66308 KiB |
| random_03.txt | AC | 106 ms | 65224 KiB |
| random_04.txt | AC | 153 ms | 66420 KiB |
| random_05.txt | AC | 387 ms | 71448 KiB |
| random_06.txt | AC | 346 ms | 70868 KiB |
| random_07.txt | AC | 121 ms | 65324 KiB |
| random_08.txt | AC | 62 ms | 64100 KiB |
| random_09.txt | AC | 384 ms | 71324 KiB |
| random_10.txt | AC | 78 ms | 64668 KiB |
| random_11.txt | AC | 152 ms | 66412 KiB |
| random_12.txt | AC | 55 ms | 63676 KiB |
| random_13.txt | AC | 381 ms | 71596 KiB |
| random_14.txt | AC | 331 ms | 70448 KiB |
| random_15.txt | AC | 345 ms | 70648 KiB |
| random_16.txt | AC | 315 ms | 69828 KiB |
| random_17.txt | AC | 48 ms | 61828 KiB |
| random_18.txt | AC | 382 ms | 71452 KiB |
| random_19.txt | AC | 48 ms | 61804 KiB |
| sample_01.txt | AC | 45 ms | 61796 KiB |
| sample_02.txt | AC | 49 ms | 61784 KiB |
| sample_03.txt | AC | 380 ms | 71380 KiB |