結果

問題 No.1103 Directed Length Sum
ユーザー dot_haraaidot_haraai
提出日時 2021-03-26 20:45:38
言語 Nim
(2.0.0)
結果
AC  
実行時間 1,107 ms / 3,000 ms
コード長 1,206 bytes
コンパイル時間 7,007 ms
コンパイル使用メモリ 73,852 KB
実行使用メモリ 102,112 KB
最終ジャッジ日時 2023-08-19 06:31:31
合計ジャッジ時間 20,006 ms
ジャッジサーバーID
(参考情報)
judge11 / judge15
このコードへのチャレンジ(β)

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 2 ms
4,380 KB
testcase_01 AC 2 ms
4,376 KB
testcase_02 AC 750 ms
99,080 KB
testcase_03 AC 669 ms
102,112 KB
testcase_04 AC 608 ms
58,972 KB
testcase_05 AC 1,107 ms
98,060 KB
testcase_06 AC 365 ms
40,272 KB
testcase_07 AC 72 ms
12,024 KB
testcase_08 AC 118 ms
17,700 KB
testcase_09 AC 42 ms
8,148 KB
testcase_10 AC 164 ms
21,512 KB
testcase_11 AC 668 ms
65,176 KB
testcase_12 AC 364 ms
40,580 KB
testcase_13 AC 168 ms
22,092 KB
testcase_14 AC 30 ms
7,088 KB
testcase_15 AC 279 ms
33,184 KB
testcase_16 AC 771 ms
71,036 KB
testcase_17 AC 813 ms
74,372 KB
testcase_18 AC 160 ms
21,544 KB
testcase_19 AC 689 ms
66,384 KB
testcase_20 AC 51 ms
10,000 KB
testcase_21 AC 102 ms
16,428 KB
testcase_22 AC 550 ms
53,296 KB
testcase_23 AC 299 ms
35,244 KB
権限があれば一括ダウンロードができます
コンパイルメッセージ
/home/judge/data/code/Main.nim(2, 18) Warning: Use the new 'sugar' module instead; future is deprecated [Deprecated]
/home/judge/data/code/Main.nim(1, 8) Warning: imported and not used: 'times' [UnusedImport]
/home/judge/data/code/Main.nim(2, 26) Warning: imported and not used: 'strformat' [UnusedImport]
/home/judge/data/code/Main.nim(2, 18) Warning: imported and not used: 'future' [UnusedImport]
/home/judge/data/code/Main.nim(2, 8) Warning: imported and not used: 'critbits' [UnusedImport]
/home/judge/data/code/Main.nim(1, 41) Warning: imported and not used: 'algorithm' [UnusedImport]
/home/judge/data/code/Main.nim(1, 52) Warning: imported and not used: 'tables' [UnusedImport]
/home/judge/data/code/Main.nim(1, 60) Warning: imported and not used: 'sets' [UnusedImport]
/home/judge/data/code/Main.nim(1, 66) Warning: imported and not used: 'lists' [UnusedImport]
/home/judge/data/code/Main.nim(1, 73) Warning: imported and not used: 'intsets' [UnusedImport]

ソースコード

diff #

import times, strutils, sequtils, math, algorithm, tables, sets, lists, intsets
import critbits, future, strformat, deques
template `max=`(x,y) = x = max(x,y)
template `min=`(x,y) = x = min(x,y)
template `mod=`(x,y) = x = x mod y
template scan2 = (scan(), scan())
template scan3 = (scan(), scan())
let read* = iterator: string {.closure.} =
    while true: (for s in stdin.readLine.split: yield s)
proc scan(): int = read().parseInt
proc scanf(): float = read().parseFloat
proc toInt(c:char): int =
    return int(c) - int('0')



proc solve():int=
  var
    n = scan()
    edges = newseqwith(n,newseq[int]())
    edge_in = newseqwith(n,0)
    depth = newseqwith(n,0)
    root = -1
    md=10^9+7
  for i in 0..<n-1:
    var (s,t) = (scan()-1,scan()-1)
    edges[s].add(t)
    edge_in[t]+=1
  
  for i in 0..<n:
    if edge_in[i]==0:
      root=i
  #echo edges
  proc dfs(r:int)=
    var q = initDeque[int]()
    q.addlast(r)
    depth[r]=0
    while q.len>0:
      var p = q.popFirst()
      for nxt in edges[p]:
        depth[nxt]=depth[p]+1
        q.addLast(nxt)
  dfs(root)
  #echo depth
  for i in 0..<n:
    result+=(depth[i]*(depth[i]+1)).div(2)
    result.mod=md




  

      

  

  
echo solve()
0