Submission #1111860

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1111860	2024-11-13 07:52:19	VinhLuu	Synchronization (JOI13_synchronization)	C++17	0 / 100	162 ms	42188 KiB

synchronization

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#include <bits/stdc++.h>
//#define int long long
#define ll long long
#define all(lpv) lpv.begin(), lpv.end()
#define fi first
#define se second
using namespace std;
typedef pair<int,int> pii;
const int N = 2e5 + 5;
int n, m, q, in[N], en[N], demin, dp[N], _x[N], _y[N], d[N], edge[N], rev[N], ver[N], be[N], pa[N], head[N], scc = 1, f[22][N], kq[N];
vector<int> p[N];
vector<pair<int,int>> g[N];
bool flag[N];
void pre(int u,int v){
  dp[u] = 1;
  for(auto [j, id] : g[u]) if(j != v){
    ver[j] = id;
    pa[j] = u;
    d[j] = d[u] + 1;
    pre(j, u);
    dp[u] += dp[j];
  }
}
void hld(int u,int v){
  in[u] = ++demin;
  rev[u] = demin;
 
 
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Compilation message (stderr)

synchronization.cpp: In function 'int main()':
synchronization.cpp:92:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   92 |     freopen(task ".inp","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
synchronization.cpp:93:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   93 |     freopen(task ".out","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 10
• Subtask 4: 0 / 20
• Subtask 5: 0 / 40