Submission #310324

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
3103242020-10-06 16:29:45shivensinha4Regions (IOI09_regions)C++17
55 / 100
8080 ms41508 KiB
#include <bits/stdc++.h>
using namespace std;
#define for_(i, s, e) for (int i = s; i < (int) e; i++)
#define for__(i, s, e) for (ll i = s; i < e; i++)
typedef long long ll;
typedef vector<int> vi;
typedef pair<int, int> ii;
//#define endl '\n'
const int MXN = 200000, MXR = 25000, INF = 1e9+1;
int n, r, q;
int reg[MXN+1], tin[MXN+1], tout[MXN+1], pt = 0;
vi adj[MXN+1];
vector<vi> regList[MXR+1];
map<ii, int> seen;
void dfs(int p, int parent) {
regList[reg[p]].push_back({pt, p});
tin[p] = pt++;
for (int i: adj[p]) if (i != parent) dfs(i, p);
tout[p] = pt-1;
}
int main() {
#ifdef shiven
freopen("test.in", "r", stdin);
#endif
ios_base::sync_with_stdio(false);
cin.tie(0);
 
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