結果
問題 | No.2360 Path to Integer |
ユーザー | mkawa2 |
提出日時 | 2023-06-23 23:04:44 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 311 ms / 2,500 ms |
コード長 | 2,132 bytes |
コンパイル時間 | 231 ms |
コンパイル使用メモリ | 82,444 KB |
実行使用メモリ | 114,588 KB |
最終ジャッジ日時 | 2024-07-01 02:51:36 |
合計ジャッジ時間 | 3,818 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 39 ms
53,468 KB |
testcase_01 | AC | 45 ms
54,632 KB |
testcase_02 | AC | 41 ms
53,224 KB |
testcase_03 | AC | 39 ms
52,984 KB |
testcase_04 | AC | 40 ms
52,984 KB |
testcase_05 | AC | 41 ms
54,044 KB |
testcase_06 | AC | 40 ms
52,484 KB |
testcase_07 | AC | 62 ms
67,256 KB |
testcase_08 | AC | 102 ms
77,736 KB |
testcase_09 | AC | 299 ms
106,164 KB |
testcase_10 | AC | 247 ms
114,588 KB |
testcase_11 | AC | 240 ms
114,104 KB |
testcase_12 | AC | 178 ms
99,192 KB |
testcase_13 | AC | 308 ms
106,284 KB |
testcase_14 | AC | 273 ms
108,496 KB |
testcase_15 | AC | 311 ms
106,084 KB |
testcase_16 | AC | 268 ms
108,844 KB |
ソースコード
import sys # sys.setrecursionlimit(200005) # sys.set_int_max_str_digits(1000005) int1 = lambda x: int(x)-1 pDB = lambda *x: print(*x, end="\n", file=sys.stderr) p2D = lambda x: print(*x, sep="\n", end="\n\n", file=sys.stderr) def II(): return int(sys.stdin.readline()) def LI(): return list(map(int, sys.stdin.readline().split())) def LLI(rows_number): return [LI() for _ in range(rows_number)] def LI1(): return list(map(int1, sys.stdin.readline().split())) def LLI1(rows_number): return [LI1() for _ in range(rows_number)] def SI(): return sys.stdin.readline().rstrip() dij = [(0, 1), (-1, 0), (0, -1), (1, 0)] # dij = [(0, 1), (-1, 0), (0, -1), (1, 0), (1, 1), (1, -1), (-1, 1), (-1, -1)] inf = (1 << 63)-1 # md = 10**9+7 md = 998244353 def rerooting(root=0): uu = [] stack = [root] while stack: u = stack.pop() uu.append(u) vv = [] # !!!check the format of the "to"!!! for v in to[u]: if v == par[u]: continue vv.append(v) par[v] = u stack.append(v) to[u] = vv for u in uu[:0:-1]: p=par[u] cnt[p]+=cnt[u] # bottom up for u in uu[::-1]: p = par[u] if p == -1: continue dp[p] = merge(dp[p], trans_up(dp[u], u)) # top down for u in uu: p = par[u] if p == -1: continue dp[u] = merge(dp[u], trans_down(purge(dp[p], trans_up(dp[u], u)), u)) # v is child # a is parent's value # b is child's value def trans_up(valb, v): p = par[v] return (valb*pw[l[p]]+a[p]*cnt[v])%md def trans_down(vala, v): p = par[v] c = n-cnt[v] return (vala*pw[l[v]]+a[v]*c)%md def merge(a, b): return (a+b)%md def purge(a, b): return (a-b)%md pw = [1] for _ in range(20): pw.append(pw[-1]*10%md) n = II() a = [0]*n l = [0]*n for i, s in enumerate(SI().split()): l[i] = len(s) a[i] = int(s) to=[[] for _ in range(n)] for _ in range(n-1): u,v=LI1() to[u].append(v) to[v].append(u) cnt = [1]*n par = [-1]*n dp = a[:] rerooting() # print(cnt) # print(dp) ans=0 for d in dp: ans+=d ans%=md print(ans)