Submission #794901

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
794901	2023-07-27 02:14:32	PurpleCrayon	Designated Cities (JOI19_designated_cities)	C++17	100 / 100	962 ms	40912 KiB

designated_cities

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#include <bits/stdc++.h>
using namespace std;
#define sz(v) int(v.size())
#define ar array
typedef long long ll;
const int N = 2e5+10, MOD = 1e9+7;
const ll INF = 1e18+10;
int n;
vector<ar<int, 3>> adj[N];
ll ans[N];
ll calc_one(int c, int p) {
    ll sum = 0;
    for (auto [nxt, w, _] : adj[c]) if (nxt != p) {
        sum += w + calc_one(nxt, c);
    }
    return sum;
}
void dfs1(int c, int p, ll x) {
    ans[1] = min(ans[1], x);
    for (auto [nxt, a, b] : adj[c]) if (nxt != p) {
        dfs1(nxt, c, x - a + b);
    }
}
int sub[N];
bool blocked[N];
 
 
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• Subtask 1: 6 / 6
• Subtask 2: 7 / 7
• Subtask 3: 9 / 9
• Subtask 4: 17 / 17
• Subtask 5: 17 / 17
• Subtask 6: 44 / 44