Submission #1476389
Source Code Expand
# import sequtils, strutils, strscans, algorithm, math, future, sets, queues, tables # for yukicoder (0.17.1) import sequtils, strutils, algorithm, math, future, sets, queues, tables # for AtCoder (0.13.0) template getLine: string = stdin.readLine template getInteger: int = getLine.parseInt template getBiggestInteger: int64 = getLine.parseBiggestInt template getIntSeq: seq[int] = getLine.split.map(parseInt) template getBigIntSeq: seq[int64] = getLine.split.map(parseBiggestInt) var edge: seq[seq[int]] A: seq[int64] proc dfs(v, par: int): int64 = if par != -1 and edge[v].len == 1: return A[v] var max_path, sum_path = 0.int64 for c in edge[v]: if c != par: var path = dfs(c, v) if path == -1: return -1 sum_path += path max_path = max(max_path, path) let p_path = 2.int64 * A[v] - sum_path if 0 <= p_path and max_path <= A[v] and A[v] <= sum_path: return p_path else: return -1 when isMainModule: let N = getInteger A = getBigIntSeq edge = newSeqWith(N, newSeq[int]()) for _ in 0..<N-1: let tmp = getIntSeq.mapIt(it-1) (a, b) = (tmp[0], tmp[1]) edge[a].add(b) edge[b].add(a) let P = dfs(0, -1) if edge[0].len == 1: echo(if P == A[0]: "YES" else: "NO") else: echo(if P == 0: "YES" else: "NO")
Submission Info
Submission Time | |
---|---|
Task | C - Cleaning |
User | n_knuu |
Language | Nim (0.13.0) |
Score | 700 |
Code Size | 1368 Byte |
Status | AC |
Exec Time | 109 ms |
Memory | 22532 KB |
Compile Error
Hint: system [Processing] Hint: Main [Processing] Hint: sequtils [Processing] Hint: strutils [Processing] Hint: parseutils [Processing] Hint: algorithm [Processing] Hint: math [Processing] Hint: times [Processing] Hint: future [Processing] Hint: macros [Processing] Hint: sets [Processing] Hint: os [Processing] Hint: posix [Processing] Hint: hashes [Processing] Hint: etcpriv [Processing] Hint: queues [Processing] Hint: tables [Processing] Main.nim(5, 10) Hint: 'getBiggestInteger' is declared but not used [XDeclaredButNotUsed] Hint: [Link] Hint: operation successful (24529 lines compiled; 2.110 sec total; 23.235MB; Release Build) [SuccessX]
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 700 / 700 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | sample1.txt, sample2.txt, sample3.txt |
All | sample1.txt, sample2.txt, sample3.txt, in1.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in17.txt, in18.txt, in19.txt, in2.txt, in20.txt, in21.txt, in22.txt, in23.txt, in24.txt, in25.txt, in26.txt, in27.txt, in28.txt, in29.txt, in3.txt, in30.txt, in31.txt, in32.txt, in33.txt, in34.txt, in35.txt, in36.txt, in37.txt, in38.txt, in39.txt, in4.txt, in40.txt, in41.txt, in42.txt, in43.txt, in44.txt, in45.txt, in5.txt, in6.txt, in7.txt, in8.txt, in9.txt, sample1.txt, sample2.txt, sample3.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
in1.txt | AC | 107 ms | 16252 KB |
in10.txt | AC | 100 ms | 16252 KB |
in11.txt | AC | 102 ms | 21352 KB |
in12.txt | AC | 104 ms | 21352 KB |
in13.txt | AC | 99 ms | 22532 KB |
in14.txt | AC | 101 ms | 21764 KB |
in15.txt | AC | 1 ms | 256 KB |
in16.txt | AC | 1 ms | 256 KB |
in17.txt | AC | 1 ms | 256 KB |
in18.txt | AC | 1 ms | 256 KB |
in19.txt | AC | 97 ms | 16252 KB |
in2.txt | AC | 101 ms | 16252 KB |
in20.txt | AC | 98 ms | 16512 KB |
in21.txt | AC | 102 ms | 16512 KB |
in22.txt | AC | 100 ms | 16252 KB |
in23.txt | AC | 101 ms | 16252 KB |
in24.txt | AC | 100 ms | 16252 KB |
in25.txt | AC | 1 ms | 256 KB |
in26.txt | AC | 101 ms | 17024 KB |
in27.txt | AC | 102 ms | 17024 KB |
in28.txt | AC | 1 ms | 256 KB |
in29.txt | AC | 92 ms | 16132 KB |
in3.txt | AC | 104 ms | 16252 KB |
in30.txt | AC | 1 ms | 256 KB |
in31.txt | AC | 104 ms | 16252 KB |
in32.txt | AC | 97 ms | 16252 KB |
in33.txt | AC | 100 ms | 16252 KB |
in34.txt | AC | 105 ms | 16252 KB |
in35.txt | AC | 100 ms | 16252 KB |
in36.txt | AC | 101 ms | 16252 KB |
in37.txt | AC | 2 ms | 508 KB |
in38.txt | AC | 98 ms | 16252 KB |
in39.txt | AC | 100 ms | 16252 KB |
in4.txt | AC | 106 ms | 16252 KB |
in40.txt | AC | 97 ms | 16252 KB |
in41.txt | AC | 101 ms | 16252 KB |
in42.txt | AC | 104 ms | 16252 KB |
in43.txt | AC | 100 ms | 16252 KB |
in44.txt | AC | 100 ms | 16252 KB |
in45.txt | AC | 109 ms | 16252 KB |
in5.txt | AC | 99 ms | 16252 KB |
in6.txt | AC | 99 ms | 16252 KB |
in7.txt | AC | 89 ms | 14588 KB |
in8.txt | AC | 23 ms | 4348 KB |
in9.txt | AC | 100 ms | 16252 KB |
sample1.txt | AC | 1 ms | 256 KB |
sample2.txt | AC | 1 ms | 256 KB |
sample3.txt | AC | 1 ms | 256 KB |