Submission #6342616
Source Code Expand
from collections import Counter n, m = [int(item) for item in input().split()] x = [int(item) for item in input().split()] modm = [[] for _ in range(m)] ans = 0 for item in x: modm[item % m].append(item) for i in range(m//2+1): if i == 0: ans += len(modm[i]) // 2 elif m % 2 == 0 and i == m // 2: ans += len(modm[i]) // 2 else: a = modm[i] b = modm[m - i] if len(b) < len(a): a, b = b[:], a[:] ans += len(a) cnt = Counter(b) val = 0 for key in cnt.keys(): val += cnt[key] // 2 ans += min(val, (len(b) - len(a)) // 2) print(ans)
Submission Info
Submission Time | |
---|---|
Task | D - Pair Cards |
User | nagitaosu |
Language | Python (3.4.3) |
Score | 700 |
Code Size | 672 Byte |
Status | AC |
Exec Time | 495 ms |
Memory | 19036 KB |
Judge Result
Set Name | sample | all | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 700 / 700 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
sample | sample-01.txt, sample-02.txt |
all | sample-01.txt, sample-02.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt, 01-11.txt, 01-12.txt, 01-13.txt, 01-14.txt, 01-15.txt, 01-16.txt, 01-17.txt, 01-18.txt, 01-19.txt, 01-20.txt, 01-21.txt, 01-22.txt, 01-23.txt, 01-24.txt, 01-25.txt, 01-26.txt, 01-27.txt, 01-28.txt, 01-29.txt, 01-30.txt, sample-01.txt, sample-02.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
01-01.txt | AC | 20 ms | 3316 KB |
01-02.txt | AC | 68 ms | 14188 KB |
01-03.txt | AC | 67 ms | 14188 KB |
01-04.txt | AC | 76 ms | 14188 KB |
01-05.txt | AC | 75 ms | 14188 KB |
01-06.txt | AC | 78 ms | 14188 KB |
01-07.txt | AC | 82 ms | 14188 KB |
01-08.txt | AC | 88 ms | 14188 KB |
01-09.txt | AC | 97 ms | 14188 KB |
01-10.txt | AC | 260 ms | 14188 KB |
01-11.txt | AC | 495 ms | 17372 KB |
01-12.txt | AC | 73 ms | 14212 KB |
01-13.txt | AC | 231 ms | 14208 KB |
01-14.txt | AC | 65 ms | 14188 KB |
01-15.txt | AC | 78 ms | 14188 KB |
01-16.txt | AC | 87 ms | 14188 KB |
01-17.txt | AC | 88 ms | 14188 KB |
01-18.txt | AC | 98 ms | 14188 KB |
01-19.txt | AC | 138 ms | 14188 KB |
01-20.txt | AC | 471 ms | 19036 KB |
01-21.txt | AC | 64 ms | 14188 KB |
01-22.txt | AC | 69 ms | 14188 KB |
01-23.txt | AC | 74 ms | 14188 KB |
01-24.txt | AC | 82 ms | 14188 KB |
01-25.txt | AC | 193 ms | 14188 KB |
01-26.txt | AC | 432 ms | 15708 KB |
01-27.txt | AC | 489 ms | 14732 KB |
01-28.txt | AC | 390 ms | 10792 KB |
01-29.txt | AC | 165 ms | 6224 KB |
01-30.txt | AC | 380 ms | 10556 KB |
sample-01.txt | AC | 20 ms | 3316 KB |
sample-02.txt | AC | 21 ms | 3316 KB |