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Submission #877800

# Submission time Handle Problem Language Result Execution time Memory
877800 2023-11-23T14:54:32 Z vjudge1 Stranded Far From Home (BOI22_island) C++17
100 / 100
 183 ms 16316 KB 
#include <bits/stdc++.h>

using namespace std;

#define int long long

#define pb push_back
#define mp make_pair
#define mt make_tuple
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()

using ll = long long;
using ld = long double;
 
void solve(int T);
void pre();
 
const int N = 2e5 + 10;
const int M = 405;
const int SQRT = 500;
const int LOG = 20;
const int INF = 1e18;
const int MOD = 1e9+7;
const ld EPS = 1e-9;

void pre(){
	#ifdef ONLINE_JUDGE
    ios::sync_with_stdio(false);
    cin.tie(0);
	#endif
	
}

int32_t main(){
	pre();
	int tt = 1;
	//cin>>tt;
	for(int i = 1;i<=tt;i++){
		//cerr<<"Case "<<i<<": "<<endl;
		solve(i);
	}
    return 0;
}



struct Edge{
	int u,v,w;
	
};
bool operator<(Edge a,Edge b){
	return a.w < b.w;
}

bool bad[N];

int A[N];
int sum[N];

int p[N];

int find(int u){
	if(p[u] == u)return u;
	int v = find(p[u]);
	bad[u] |= bad[p[u]];
	p[u] = v;
	return v;
}

void join(int u,int v){
	u = find(u);
	v = find(v);

	if(u == v)return;
	if(A[u] < A[v])swap(u,v);
	if(A[u] > sum[v])bad[v] = true;
	p[v] = u;
	sum[u] += sum[v];
}

void solve(int T){
    int n,m;
	cin>>n>>m;
	for(int i = 1;i<=n;i++){
		cin>>A[i];
		p[i] = i;
		sum[i] = A[i];
	}
	Edge edge[m];
	for(int i = 0;i<m;i++){
		int u,v;
		cin>>u>>v;
		edge[i] = {u, v, max(A[u], A[v])}; 
	}
	sort(edge, edge + m);

	for(auto p : edge){
		join(p.u, p.v);
	}
	cerr<<"kur"<<endl;


	for(int i = 1;i<=n;i++){
		find(i);
		cout<<!bad[i];
	}
	cout<<endl;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 2 ms 4556 KB Output is correct
5 Correct 2 ms 4444 KB Output is correct
6 Correct 2 ms 4444 KB Output is correct
7 Correct 2 ms 4440 KB Output is correct
8 Correct 2 ms 4444 KB Output is correct
9 Correct 2 ms 4444 KB Output is correct
10 Correct 2 ms 4452 KB Output is correct
11 Correct 2 ms 4552 KB Output is correct
12 Correct 2 ms 4444 KB Output is correct
13 Correct 2 ms 4444 KB Output is correct
14 Correct 2 ms 4444 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4540 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 172 ms 14620 KB Output is correct
4 Correct 128 ms 13252 KB Output is correct
5 Correct 155 ms 14164 KB Output is correct
6 Correct 162 ms 14420 KB Output is correct
7 Correct 159 ms 14416 KB Output is correct
8 Correct 156 ms 14416 KB Output is correct
9 Correct 162 ms 14300 KB Output is correct
10 Correct 135 ms 13768 KB Output is correct
11 Correct 132 ms 14924 KB Output is correct
12 Correct 129 ms 13140 KB Output is correct
13 Correct 119 ms 12884 KB Output is correct
14 Correct 122 ms 13140 KB Output is correct
15 Correct 158 ms 14404 KB Output is correct
16 Correct 135 ms 13648 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 167 ms 12884 KB Output is correct
3 Correct 162 ms 14420 KB Output is correct
4 Correct 154 ms 14676 KB Output is correct
5 Correct 118 ms 12884 KB Output is correct
6 Correct 171 ms 14420 KB Output is correct
7 Correct 159 ms 14524 KB Output is correct
8 Correct 177 ms 14532 KB Output is correct
9 Correct 136 ms 13644 KB Output is correct
10 Correct 138 ms 13904 KB Output is correct
11 Correct 127 ms 13136 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 160 ms 12968 KB Output is correct
3 Correct 159 ms 13908 KB Output is correct
4 Correct 168 ms 14160 KB Output is correct
5 Correct 156 ms 13824 KB Output is correct
6 Correct 153 ms 13372 KB Output is correct
7 Correct 154 ms 15696 KB Output is correct
8 Correct 128 ms 12880 KB Output is correct
9 Correct 114 ms 12112 KB Output is correct
10 Correct 122 ms 12920 KB Output is correct
11 Correct 124 ms 13260 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 2 ms 4556 KB Output is correct
5 Correct 2 ms 4444 KB Output is correct
6 Correct 2 ms 4444 KB Output is correct
7 Correct 2 ms 4440 KB Output is correct
8 Correct 2 ms 4444 KB Output is correct
9 Correct 2 ms 4444 KB Output is correct
10 Correct 2 ms 4452 KB Output is correct
11 Correct 2 ms 4552 KB Output is correct
12 Correct 2 ms 4444 KB Output is correct
13 Correct 2 ms 4444 KB Output is correct
14 Correct 2 ms 4444 KB Output is correct
15 Correct 1 ms 4540 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 172 ms 14620 KB Output is correct
18 Correct 128 ms 13252 KB Output is correct
19 Correct 155 ms 14164 KB Output is correct
20 Correct 162 ms 14420 KB Output is correct
21 Correct 159 ms 14416 KB Output is correct
22 Correct 156 ms 14416 KB Output is correct
23 Correct 162 ms 14300 KB Output is correct
24 Correct 135 ms 13768 KB Output is correct
25 Correct 132 ms 14924 KB Output is correct
26 Correct 129 ms 13140 KB Output is correct
27 Correct 119 ms 12884 KB Output is correct
28 Correct 122 ms 13140 KB Output is correct
29 Correct 158 ms 14404 KB Output is correct
30 Correct 135 ms 13648 KB Output is correct
31 Correct 1 ms 4444 KB Output is correct
32 Correct 167 ms 12884 KB Output is correct
33 Correct 162 ms 14420 KB Output is correct
34 Correct 154 ms 14676 KB Output is correct
35 Correct 118 ms 12884 KB Output is correct
36 Correct 171 ms 14420 KB Output is correct
37 Correct 159 ms 14524 KB Output is correct
38 Correct 177 ms 14532 KB Output is correct
39 Correct 136 ms 13644 KB Output is correct
40 Correct 138 ms 13904 KB Output is correct
41 Correct 127 ms 13136 KB Output is correct
42 Correct 1 ms 4444 KB Output is correct
43 Correct 160 ms 12968 KB Output is correct
44 Correct 159 ms 13908 KB Output is correct
45 Correct 168 ms 14160 KB Output is correct
46 Correct 156 ms 13824 KB Output is correct
47 Correct 153 ms 13372 KB Output is correct
48 Correct 154 ms 15696 KB Output is correct
49 Correct 128 ms 12880 KB Output is correct
50 Correct 114 ms 12112 KB Output is correct
51 Correct 122 ms 12920 KB Output is correct
52 Correct 124 ms 13260 KB Output is correct
53 Correct 1 ms 4444 KB Output is correct
54 Correct 1 ms 4444 KB Output is correct
55 Correct 1 ms 4444 KB Output is correct
56 Correct 2 ms 4444 KB Output is correct
57 Correct 2 ms 4444 KB Output is correct
58 Correct 2 ms 4444 KB Output is correct
59 Correct 2 ms 4444 KB Output is correct
60 Correct 2 ms 4444 KB Output is correct
61 Correct 2 ms 4444 KB Output is correct
62 Correct 2 ms 4444 KB Output is correct
63 Correct 2 ms 4444 KB Output is correct
64 Correct 2 ms 4444 KB Output is correct
65 Correct 2 ms 4444 KB Output is correct
66 Correct 2 ms 4444 KB Output is correct
67 Correct 169 ms 14520 KB Output is correct
68 Correct 126 ms 13244 KB Output is correct
69 Correct 153 ms 14060 KB Output is correct
70 Correct 158 ms 14352 KB Output is correct
71 Correct 162 ms 14544 KB Output is correct
72 Correct 156 ms 14416 KB Output is correct
73 Correct 157 ms 14480 KB Output is correct
74 Correct 134 ms 13632 KB Output is correct
75 Correct 133 ms 14908 KB Output is correct
76 Correct 125 ms 13116 KB Output is correct
77 Correct 119 ms 12984 KB Output is correct
78 Correct 127 ms 13244 KB Output is correct
79 Correct 160 ms 14416 KB Output is correct
80 Correct 133 ms 13816 KB Output is correct
81 Correct 183 ms 14436 KB Output is correct
82 Correct 164 ms 14424 KB Output is correct
83 Correct 152 ms 14468 KB Output is correct
84 Correct 118 ms 12992 KB Output is correct
85 Correct 168 ms 14504 KB Output is correct
86 Correct 157 ms 14664 KB Output is correct
87 Correct 167 ms 14524 KB Output is correct
88 Correct 149 ms 14160 KB Output is correct
89 Correct 133 ms 13012 KB Output is correct
90 Correct 160 ms 14416 KB Output is correct
91 Correct 160 ms 14672 KB Output is correct
92 Correct 158 ms 14552 KB Output is correct
93 Correct 156 ms 14420 KB Output is correct
94 Correct 151 ms 14164 KB Output is correct
95 Correct 154 ms 16316 KB Output is correct
96 Correct 127 ms 13392 KB Output is correct
97 Correct 113 ms 12116 KB Output is correct
98 Correct 130 ms 13396 KB Output is correct
99 Correct 144 ms 13036 KB Output is correct
100 Correct 83 ms 11036 KB Output is correct
101 Correct 169 ms 14508 KB Output is correct
102 Correct 143 ms 13644 KB Output is correct
103 Correct 164 ms 13908 KB Output is correct
104 Correct 169 ms 14416 KB Output is correct