Submission #1118477

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1118477	2024-11-25 14:29:55	quanquai	Drivers (BOI24_drivers)	C++11	0 / 100	1 ms	2404 KiB

Main

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#include <bits/stdc++.h>
using namespace std;
#define i64 long long
#define i32 int
#define all(v) (v).begin(), (v).end()
#define task "drivers"
const int N = 2e5 + 123;
int n, m, q;
int ans[N];
array<int, 3> edge[N];
array<int, 4> que[N];
struct DSU {
   vector<int> par, sz;
   DSU(int n) : par(n + 1), sz(n + 1) {
      for (int i = 1; i <= n; i++) {
         par[i] = i;
         sz[i] = 1;
      }
   }
   int get(int u) {
      return (u == par[u] ? par[u] : par[u] = get(par[u]));
   }
   void join(int u, int v) {
      u = get(u);
      v = get(v);
      if (u == v) return;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:47:14: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   47 |       freopen(task".inp", "r", stdin);
      |       ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:48:14: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   48 |       freopen(task".out", "w", stdout);
      |       ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 11
• Subtask 3: 0 / 11
• Subtask 4: 0 / 23
• Subtask 5: 0 / 45