Submission #292887

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
292887	2020-09-07 14:36:49	limabeans	Power Plant (JOI20_power)	C++17	100 / 100	427 ms	51896 KiB

power

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#include <bits/stdc++.h>
using namespace std;
template<typename T>
void out(T x) { cout << x << endl; exit(0); }
#define watch(x) cout << (#x) << " is " << (x) << endl
using ll = long long;
const ll mod = 1e9+7;
const int maxn = 200000 + 100;
// Assume answer is rooted at node and join the children, test all nodes via re-rooting trick.
// Key observation: a node's contribution upwards is either itself, or disjoint children in it's subtrees.
int n;
vector<int> g[maxn];
string s;
struct vec {
    multiset<int> ms;
    int tot=0;
    void insert(int x) {
  ms.insert(x);
  tot += x;
    }
 
 
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• Subtask 1: 6 / 6
• Subtask 2: 41 / 41
• Subtask 3: 53 / 53