Submission #741741

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
741741	2023-05-14 18:09:24	arnold518	Tourism (JOI23_tourism)	C++17	100 / 100	728 ms	24420 KiB

tourism

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const int MAXN = 1e5;
int N, M, Q;
vector<int> adj[MAXN+10];
int A[MAXN+10], ans[MAXN+10];
vector<pii> B[MAXN+10];
int sz[MAXN+10], par[MAXN+10], dep[MAXN+10];
void dfs(int now, int bef, int d)
{
  sz[now]=1;
  par[now]=bef;
  dep[now]=d;
  for(int nxt : adj[now])
  {
    if(nxt==bef) continue;
    dfs(nxt, now, d+1);
    sz[now]+=sz[nxt];
  }
}
int dfn[MAXN+10], head[MAXN+10], cnt;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

tourism.cpp: In function 'int main()':
tourism.cpp:96:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   96 |  scanf("%d%d%d", &N, &M, &Q);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~~~~
tourism.cpp:100:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  100 |   scanf("%d%d", &u, &v);
      |   ~~~~~^~~~~~~~~~~~~~~~
tourism.cpp:104:31: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  104 |  for(int i=1; i<=M; i++) scanf("%d", &A[i]);
      |                          ~~~~~^~~~~~~~~~~~~
tourism.cpp:108:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  108 |   scanf("%d%d", &l, &r);
      |   ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 7 / 7
• Subtask 4: 18 / 18
• Subtask 5: 24 / 24
• Subtask 6: 41 / 41