제출 #601039

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
601039		TimDee	Stranded Far From Home (BOI22_island)	C++17	10 / 100	415 ms	31584 KiB

island

#include <bits/stdc++.h>
using namespace std;
 
#define paiu return
#define moment 0;
 
#define int long long
#define double long double
#define ll long long

#define forr(i,x) for (int i=0; i<x; i++)
#define forn(i,x) for (int i=0; i<x; i++)

#define vi(a,n) vector<int> a(n,0)
 
//cringe define
#define vii(a,n) vi(a,n); forr(i,n) cin>>a[i];
vector<int> ___makeprefsum(vector<int>&a) {
    int n=a.size();
    vi(pr,n+1);
    forn(i,n) pr[i+1]=pr[i]+a[i];
    return pr;
}
#define prefsum(pr,a) vector<int> pr=___makeprefsum(a);
 
#define all(v) v.begin(),v.end()
#define rall(v) v.rbegin(),v.rend()
 
#define pb(x) push_back(x)
#define pf pop_front();
#define last(c) c[c.size()-1]
 
#define f first
#define s second
 
#define pi pair<int, int>
#define mp(x,y) make_pair(x, y)
 
const ll mod = 1000000007;
const double ppi = acos(0) * 2;
     
const int maxn = 1e5+1;
const int inf = INT_MAX;
const ll linf = LLONG_MAX;
const ll mmod = 998244353;

vector<int> a;
auto cmp = [](int i, int j) { return a[i]<=a[j]; };

void solve() {
    
    int n,m; cin>>n>>m;
    vii(b,n); a=b;
    vector<vector<int>> adj(n);
    forn(i,m) {
        int u,v; cin>>u>>v;
        --u, --v;
        adj[u].pb(v);
        adj[v].pb(u);
    }

    string ans(n,'1');

    forn(i,n) {
        set<int,decltype(cmp)> s(cmp);
        int cnt=a[i];
        bitset<2000> vis; vis.set(i,1); //cout<<i+1<<"->";
        for (auto v:adj[i]) { s.insert(v); vis.set(v,1); }
        while (!s.empty()) {
            auto it=s.begin();
            int u=*it;
            //cout<<u+1<<"->";
            if (a[u]>cnt) {ans[i]='0'; break;}
            cnt+=a[u]; 
            vis.set(u,1);
            s.erase(it);
            for (auto v:adj[u]) if (!vis[v]) { s.insert(v); vis.set(v,1); }
        }
        //cout<<'\n';
    }
    cout<<ans;
    
}

int32_t main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    
    int t=1;
    //cin>>t;
    while(t--) solve();
    
    paiu moment
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 15
• Subtask 4: 0 / 30
• Subtask 5: 0 / 35