#pragma once
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef double db;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef pair<ld, ld> pld;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<ld> vld;
typedef vector<pii> vpii;
typedef vector<pll> vpll;
typedef vector<pld> vpld;
typedef vector<vi> vvi;
typedef tuple<int, int, int> t3;
typedef tuple<int, int, int, int> t4;
template<typename T> using pq = priority_queue<T>;
template<typename T> using pqg = priority_queue<T, vector<T>, greater<T>>;
#define sz(x) (int)(x).size()
#define mp make_pair
#define pb push_back
#define st first
#define nd second
#define lb lower_bound
#define ub upper_bound
#define all(x) (x).begin(), (x).end()
#define ins insert
#define int ll
template<typename T> bool ckmin(T &a, const T &b) { return b < a ? a = b, 1 : 0; }
template<typename T> bool ckmax(T &a, const T &b) { return a < b ? a = b, 1 : 0; }
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const int MOD = 1e9 + 7;
const int INF = 0x3fffffff;
const ll LINF = 0x1fffffffffffffff;
const char nl = '\n';
const int MX = 2e5 + 3;
ll s[MX], ans[MX], sz[MX], rep[MX];
vi adj[MX], adj2[MX];
vector<t3> edges;
int f(int i) {return rep[i] == i ? i : rep[i] = f(rep[i]);}
void mark(int i, int prt, int v) {
ans[i] = v;
for (auto j : adj2[i]) {
if (j == prt) continue;
if (ans[j] == 0) mark(j, i, 0);
else mark(j, i, v);
}
}
void solve() {
int n, m; cin >> n >> m;
int mx = 0;
for (int i = 1; i <= n; ++i) ans[i] = -1, rep[i] = i;
for (int i = 1; i <= n; ++i) {
cin >> s[i]; sz[i] = s[i];
if (s[mx] > s[i]) mx = i;
}
for (int i = 1; i <= m; ++i) {
int u, v; cin >> u >> v;
adj[u].pb(v); adj[v].pb(u);
edges.pb({max(s[u], s[v]), u, v});
}
sort(all(edges));
for (auto [M, u, v] : edges) {
int fu = f(u), fv = f(v);
if (fu == fv) continue;
adj2[u].pb(v); adj2[v].pb(u);
if (s[u] > sz[fv]) ans[v] = 0;
if (s[v] > sz[fu]) ans[u] = 0;
sz[fu] += sz[fv];
rep[fv] = rep[fu];
}
mark(mx, 0, 1);
for (int i = 1; i <= n; ++i) cout << ans[i];
cout << nl;
}
signed main(int argc, char* argv[]) {
ios_base::sync_with_stdio(0); cin.tie(NULL);
int t = 1;
// cin >> t;
while (t--) { solve(); }
return 0;
}
Compilation message
island.cpp:1:9: warning: #pragma once in main file
1 | #pragma once
| ^~~~
island.cpp: In function 'void solve()':
island.cpp:75:13: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
75 | for (auto [M, u, v] : edges) {
| ^
island.cpp: At global scope:
island.cpp:89:8: warning: first argument of 'int main(ll, char**)' should be 'int' [-Wmain]
89 | signed main(int argc, char* argv[]) {
| ^~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
4 ms |
10844 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
3 ms |
11096 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
3 ms |
10844 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
4 ms |
10844 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
4 ms |
10844 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
