Submission #790684

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
790684	2023-07-23 05:45:00	qwerasdfzxcl	Tourism (JOI23_tourism)	C++17	100 / 100	995 ms	20980 KiB

tourism

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
constexpr int INF = 1e9 + 100;
vector<int> adj[100100];
int a[100100], ans[100100];
int dep[100100], par[100100], sz[100100], top[100100], in[100100], out[100100], cnt;
struct Seg{
  int tree[200200], sz;
  void init(int n){
    sz = n;
    fill(tree, tree+sz*2, 0);
  }
  void update(int p, int x){
    p += sz;
    tree[p] += x;
    for (p>>=1;p;p>>=1) tree[p] = tree[p<<1] + tree[p<<1|1];
  }
  int query(int l, int r){
    ++r;
    int ret = 0;
    for (l+=sz, r+=sz;l<r;l>>=1, r>>=1){
      if (l&1) ret += tree[l++];
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

tourism.cpp: In function 'int main()':
tourism.cpp:131:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  131 |  scanf("%d %d %d", &n, &m, &q);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
tourism.cpp:135:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  135 |   scanf("%d %d", &x, &y);
      |   ~~~~~^~~~~~~~~~~~~~~~~
tourism.cpp:143:30: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  143 |  for (int i=1;i<=m;i++) scanf("%d", a+i);
      |                         ~~~~~^~~~~~~~~~~
tourism.cpp:148:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  148 |   scanf("%d %d", &x, &y);
      |   ~~~~~^~~~~~~~~~~~~~~~~

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