Submission #961024

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
961024	2024-04-11 12:07:18	rxlfd314	Synchronization (JOI13_synchronization)	C++17	100 / 100	341 ms	21916 KiB

synchronization

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#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ari2 = array<int, 2>;
#define vt vector
#define size(x) (int((x).size()))
#define all(x) begin(x), end(x)
#define REP(a,b,c,d) for(int a=(b);(d)>0?a<=(c):a>=(c);a+=(d))
#define FOR(a,b,c) REP(a,b,c,1)
#define ROF(a,b,c) REP(a,b,c,-1)
constexpr int mxN = 100005;
int N, M, Q;
ari2 edges[mxN];
vt<int> adj[mxN];
int hson[mxN], szs[mxN], parent[mxN];
void dfs_szs(int i, int p) {
  parent[i] = p;
  szs[i] = 1;
  hson[i] = -1;
  for (int j : adj[i])
    if (j != p) {
      dfs_szs(j, i);
      szs[i] += szs[j];
      if (hson[i] < 0 || szs[j] > szs[hson[i]])
        hson[i] = j;
    }
 
 
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Compilation message (stderr)

synchronization.cpp: In function 'int find_highest(int)':
synchronization.cpp:71:20: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   71 |     int mid = lo+hi+1 >> 1;
      |               ~~~~~^~

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 10 / 10
• Subtask 4: 20 / 20
• Subtask 5: 40 / 40