Submission #53634

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
536342018-06-30 15:12:47baactreeRegions (IOI09_regions)C++17
85 / 100
7638 ms92340 KiB
#include <bits/stdc++.h>
using namespace std;
int n, r, q;
vector<int> adj[200005];
int arr[200005];
const int sz = 600;
int cache[sz][25005];
pair<int, int> cnt[25005];
int inv[25005];
int le[200005], ri[200005];
vector<int> idx[25005];
vector<pair<int, int> > vec[25005];
int vn;
void dfs(int now, int par) {
idx[arr[now]].push_back(vn);
le[now] = vn++;
for (auto &there : adj[now]) {
if (there == par)continue;
dfs(there, now);
}
ri[now] = vn++;
vec[arr[now]].emplace_back(le[now], ri[now]);
}
int main() {
scanf("%d%d%d", &n, &r, &q);
scanf("%d", &arr[1]);
cnt[arr[1]].first++;
for (int i = 2; i <= n; i++) {
int a, b;
scanf("%d%d", &a, &b);
 
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Compilation message (stderr)

regions.cpp: In function 'int main()':
regions.cpp:25:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%d", &n, &r, &q);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~
regions.cpp:26:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &arr[1]);
  ~~~~~^~~~~~~~~~~~~~~
regions.cpp:30:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &a, &b);
   ~~~~~^~~~~~~~~~~~~~~~
regions.cpp:47:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &a, &b);
   ~~~~~^~~~~~~~~~~~~~~~
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