Submission #29003

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
29003	2017-07-18 05:33:49	h0ngjun7	트리 (KOI16_tree)	C++14	100 / 100	476 ms	37728 KiB

tree

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#include <stdio.h>
#include <vector>
#include <algorithm>
using namespace std;
#define pb push_back
#define sz size
#define all(X) (X).begin(), (X).end ()
typedef pair < int, int > pii;
const int MAXN = 200005;
int N, M, Lev[MAXN], Par[MAXN], SZ[MAXN], bn, dfsn[MAXN], dn, Tail[MAXN];
int Chain[4 * MAXN], Time[4 * MAXN];
vector <int> E[MAXN];
void DFS(int x, int par) {
  Par[x] = par;
  SZ[x] = 1;
  for (auto &it : E[x]) {
    if (it != par) {
      Lev[it] = Lev[x] + 1;
      DFS(it, x);
      SZ[x] += SZ[it];
    }
  }
}
void hld(int x, int par, int Color) {
  dfsn[x] = ++dn;
  Chain[bn + dn] = Color;
  Tail[Color] = dn;
  int idx = -1;
  for (auto &it : E[x]) {
    if (it != par && (idx == -1 || SZ[it] > SZ[x]))
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

tree.cpp: In function 'int main()':
tree.cpp:72:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &N, &M);
                       ^
tree.cpp:75:36: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int x = i + 1, y; scanf("%d", &y);
                                    ^
tree.cpp:83:53: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int op, x, y, tx, ty; scanf("%d%d%d", &x, &y, &op);
                                                     ^

• Subtask 1: 9 / 9
• Subtask 2: 13 / 13
• Subtask 3: 14 / 14
• Subtask 4: 19 / 19
• Subtask 5: 45 / 45