Submission #242620

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
242620	2020-06-28 10:58:13	lyc	Magic Tree (CEOI19_magictree)	C++14	100 / 100	152 ms	26232 KiB

magictree

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#include <bits/stdc++.h>
using namespace std;
#define TRACE(x) cerr << #x << " :: " << x << endl
#define _ << " " <<
#define SZ(x) (int)(x).size()
#define ALL(x) (x).begin(),(x).end()
#define FOR(i,a,b) for(int i=(a);i<=(b);++i)
#define RFOR(i,a,b) for (int i=(a);i>=(b);--i)
using ll=long long;
using ii=pair<int,int>;
const int mxN = 1e5+5;
int N, M, K;
vector<int> al[mxN];
ii fruit[mxN];
map<int,ll> dfs(int u) {
    map<int,ll> res;
    for (int v : al[u]) {
        auto x = dfs(v);
        if (SZ(res) < SZ(x)) swap(res,x);
        for (auto& y : x) {
            if (res.count(y.first)) res[y.first] += y.second;
            else res.insert(y);
        }
    }
    if (fruit[u] != ii(-1,-1)) {
        auto it = res.upper_bound(fruit[u].first);
 
 
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• Subtask 1: 6 / 6
• Subtask 2: 3 / 3
• Subtask 3: 11 / 11
• Subtask 4: 12 / 12
• Subtask 5: 16 / 16
• Subtask 6: 13 / 13
• Subtask 7: 22 / 22
• Subtask 8: 17 / 17