Submission #898880

#	Time	Username	Problem	Language	Result	Execution time	Memory
898880		vjudge1	Magic Tree (CEOI19_magictree)	C++17	0 / 100	43 ms	6236 KiB

magictree

#include <bits/stdc++.h>

using namespace std;

#define ll long long int
#define pb push_back
#define mp make_pair
#define pii pair<int, int>
#define all(x) x.begin(), x.end()
#define u_map unordered_map
#define int ll
const int maxn = 1e5 + 5, mod = 1e9 + 7;

vector<int> adj[maxn];
int d[maxn], w[maxn], ans;
bool mark[maxn];

void dfs(int v) {
	mark[v] = 1;
	bool is = true;
	ans += d[v];
	for (int u: adj[v]) {
		is = false;
		dfs(u);
	}
}

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    int n, m, k;
    cin >> n >> m >> k;
    for (int i = 2; i <= n; i++) {
    	int p;
    	cin >> p;
    	adj[p].pb(i);
    }
    for (int i = 1; i <= m; i++) {
    	int _v, _d, _w;
    	cin >> _v >> _d >> _w;
    	d[_v] = _d;
    	w[_v] = _w;
    }
    dfs(1);
    cout << ans;
    return 0;	
}

Compilation message (stderr)

magictree.cpp: In function 'void dfs(long long int)':
magictree.cpp:20:7: warning: variable 'is' set but not used [-Wunused-but-set-variable]
   20 |  bool is = true;
      |       ^~

• Subtask 1: 0 / 6
• Subtask 2: 0 / 3
• Subtask 3: 0 / 11
• Subtask 4: 0 / 12
• Subtask 5: 0 / 16
• Subtask 6: 0 / 13
• Subtask 7: 0 / 22
• Subtask 8: 0 / 17