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Submission #744934

# Submission time Handle Problem Language Result Execution time Memory
744934 2023-05-19T08:25:09 Z josanneo22 Stranded Far From Home (BOI22_island) C++17
0 / 100
 153 ms 23836 KB 
#include <bits/stdc++.h>
#include<unordered_map>
#include<unordered_set>
#include<algorithm>
using namespace std;

#define mp make_pair
#define pb push_back
#define pii pair<int,int>
#define fi first
#define se second 
#define int long long
const int maxn = 2e5 + 50;
vector<vector<int>> adj(maxn);
vector<int>dp(maxn), s(maxn), vis(maxn), vis1(maxn);
void dfs(int u) {
	dp[u] = s[u];
	vis[u] = 1;
	for (auto& v : adj[u]) {
		if (!vis[v]) {
			dfs(v);
			dp[u] += dp[v];
		}
	}
}
void dfs1(int u) {
	vis1[u] = 1;
	for (auto& v : adj[u]) {
		if (!vis1[v]) {
			if (dp[v]>=s[u]) dp[v] = dp[u];
			dfs(v);
		}
	}
}
signed main() {
	ios_base::sync_with_stdio(0); cin.tie(0);
	int n, m; cin >> n >> m;
	for (int i = 0; i < n; i++) cin >> s[i];
	int save = accumulate(s.begin(), s.end(), 0LL);
	for (int i = 0; i < m; i++) {
		int u, v; cin >> u >> v;
		u--; v--;
		adj[u].pb(v); adj[v].pb(u);
	}
	dfs(0); dfs1(0);
	for (int i = 0; i < n; i++) {
		cout << (dp[i] == save);
	}
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 6 ms 11220 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 11220 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 11220 KB Output is correct
2 Incorrect 125 ms 23836 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 11220 KB Output is correct
2 Incorrect 153 ms 19172 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Incorrect 6 ms 11220 KB Output isn't correct
2 Halted 0 ms 0 KB -