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Submission #953494

# Submission time Handle Problem Language Result Execution time Memory
953494 2024-03-26T03:31:24 Z PM1 Stranded Far From Home (BOI22_island) C++17
100 / 100
 166 ms 41032 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
const int mxn=2e5+5;
ll n,m,par[mxn],s[mxn],root[mxn],sz[mxn],a[mxn];
vector<int>v[mxn],t,g[mxn];
bool ans[mxn];
bool cmp(int x,int y){
	return (s[x]!=s[y])?s[x]<s[y]:x<y;
}
int fndpar(int x){
	return (par[x]==x)?x:par[x]=fndpar(par[x]);
}
void dfs(int z){
	ans[z]=1;
	//cout<<z<<" ";
	for(auto i:g[z]){
		if(s[i]>=a[z])
			dfs(i);
	}
}
int main(){
	ios::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	cin>>n>>m;
	for(int i=1;i<=n;i++){
		cin>>a[i];
		s[i]=a[i];
		t.push_back(i);
		par[i]=i;
		root[i]=i;
		sz[i]=1;
	}
	for(int i=1;i<=m;i++){
		int x,y;
		cin>>x>>y;
		if(s[x]>s[y] || (s[x]==s[y] && y<x))
			v[x].push_back(y);
		else 
			v[y].push_back(x);
	}
	sort(t.begin(),t.end(),cmp);
	for(auto i:t){
		//cout<<i<<'\n';
		for(auto j:v[i]){
			int x=fndpar(j),y=fndpar(i);
			if(root[x]!=i){
				//cout<<root[x]<<" ";
				s[i]+=s[root[x]];
				g[i].push_back(root[x]);
				if(sz[x]>sz[y])swap(x,y);
				par[x]=y;
				sz[y]+=sz[x];
				root[y]=i;
			}
		}
		//cout<<'\n';
	}
	// /return 0;
	dfs(t.back());
	for(int i=1;i<=n;i++)
		cout<<ans[i];
	return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 16732 KB Output is correct
2 Correct 3 ms 16732 KB Output is correct
3 Correct 4 ms 16728 KB Output is correct
4 Correct 4 ms 16732 KB Output is correct
5 Correct 4 ms 16988 KB Output is correct
6 Correct 4 ms 16988 KB Output is correct
7 Correct 5 ms 16988 KB Output is correct
8 Correct 4 ms 16988 KB Output is correct
9 Correct 4 ms 16988 KB Output is correct
10 Correct 4 ms 16988 KB Output is correct
11 Correct 5 ms 16876 KB Output is correct
12 Correct 4 ms 16988 KB Output is correct
13 Correct 4 ms 16880 KB Output is correct
14 Correct 4 ms 16984 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 16732 KB Output is correct
2 Correct 3 ms 16732 KB Output is correct
3 Correct 95 ms 29412 KB Output is correct
4 Correct 89 ms 34764 KB Output is correct
5 Correct 111 ms 30524 KB Output is correct
6 Correct 117 ms 31032 KB Output is correct
7 Correct 121 ms 30964 KB Output is correct
8 Correct 99 ms 40908 KB Output is correct
9 Correct 82 ms 29340 KB Output is correct
10 Correct 70 ms 24148 KB Output is correct
11 Correct 113 ms 39992 KB Output is correct
12 Correct 107 ms 33484 KB Output is correct
13 Correct 86 ms 33996 KB Output is correct
14 Correct 103 ms 34984 KB Output is correct
15 Correct 97 ms 40912 KB Output is correct
16 Correct 74 ms 39880 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 16872 KB Output is correct
2 Correct 142 ms 26956 KB Output is correct
3 Correct 166 ms 31772 KB Output is correct
4 Correct 122 ms 40832 KB Output is correct
5 Correct 85 ms 33988 KB Output is correct
6 Correct 145 ms 31420 KB Output is correct
7 Correct 121 ms 40908 KB Output is correct
8 Correct 127 ms 40904 KB Output is correct
9 Correct 74 ms 39912 KB Output is correct
10 Correct 88 ms 31280 KB Output is correct
11 Correct 102 ms 30160 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 16728 KB Output is correct
2 Correct 164 ms 26976 KB Output is correct
3 Correct 130 ms 31184 KB Output is correct
4 Correct 151 ms 31176 KB Output is correct
5 Correct 130 ms 31184 KB Output is correct
6 Correct 113 ms 31180 KB Output is correct
7 Correct 82 ms 33596 KB Output is correct
8 Correct 74 ms 37004 KB Output is correct
9 Correct 69 ms 25292 KB Output is correct
10 Correct 93 ms 29396 KB Output is correct
11 Correct 114 ms 30156 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 16732 KB Output is correct
2 Correct 3 ms 16732 KB Output is correct
3 Correct 4 ms 16728 KB Output is correct
4 Correct 4 ms 16732 KB Output is correct
5 Correct 4 ms 16988 KB Output is correct
6 Correct 4 ms 16988 KB Output is correct
7 Correct 5 ms 16988 KB Output is correct
8 Correct 4 ms 16988 KB Output is correct
9 Correct 4 ms 16988 KB Output is correct
10 Correct 4 ms 16988 KB Output is correct
11 Correct 5 ms 16876 KB Output is correct
12 Correct 4 ms 16988 KB Output is correct
13 Correct 4 ms 16880 KB Output is correct
14 Correct 4 ms 16984 KB Output is correct
15 Correct 4 ms 16732 KB Output is correct
16 Correct 3 ms 16732 KB Output is correct
17 Correct 95 ms 29412 KB Output is correct
18 Correct 89 ms 34764 KB Output is correct
19 Correct 111 ms 30524 KB Output is correct
20 Correct 117 ms 31032 KB Output is correct
21 Correct 121 ms 30964 KB Output is correct
22 Correct 99 ms 40908 KB Output is correct
23 Correct 82 ms 29340 KB Output is correct
24 Correct 70 ms 24148 KB Output is correct
25 Correct 113 ms 39992 KB Output is correct
26 Correct 107 ms 33484 KB Output is correct
27 Correct 86 ms 33996 KB Output is correct
28 Correct 103 ms 34984 KB Output is correct
29 Correct 97 ms 40912 KB Output is correct
30 Correct 74 ms 39880 KB Output is correct
31 Correct 3 ms 16872 KB Output is correct
32 Correct 142 ms 26956 KB Output is correct
33 Correct 166 ms 31772 KB Output is correct
34 Correct 122 ms 40832 KB Output is correct
35 Correct 85 ms 33988 KB Output is correct
36 Correct 145 ms 31420 KB Output is correct
37 Correct 121 ms 40908 KB Output is correct
38 Correct 127 ms 40904 KB Output is correct
39 Correct 74 ms 39912 KB Output is correct
40 Correct 88 ms 31280 KB Output is correct
41 Correct 102 ms 30160 KB Output is correct
42 Correct 3 ms 16728 KB Output is correct
43 Correct 164 ms 26976 KB Output is correct
44 Correct 130 ms 31184 KB Output is correct
45 Correct 151 ms 31176 KB Output is correct
46 Correct 130 ms 31184 KB Output is correct
47 Correct 113 ms 31180 KB Output is correct
48 Correct 82 ms 33596 KB Output is correct
49 Correct 74 ms 37004 KB Output is correct
50 Correct 69 ms 25292 KB Output is correct
51 Correct 93 ms 29396 KB Output is correct
52 Correct 114 ms 30156 KB Output is correct
53 Correct 3 ms 16728 KB Output is correct
54 Correct 3 ms 16732 KB Output is correct
55 Correct 3 ms 16732 KB Output is correct
56 Correct 5 ms 16884 KB Output is correct
57 Correct 4 ms 16988 KB Output is correct
58 Correct 4 ms 16988 KB Output is correct
59 Correct 4 ms 16820 KB Output is correct
60 Correct 4 ms 16988 KB Output is correct
61 Correct 4 ms 16944 KB Output is correct
62 Correct 4 ms 16988 KB Output is correct
63 Correct 4 ms 16988 KB Output is correct
64 Correct 4 ms 16732 KB Output is correct
65 Correct 4 ms 17240 KB Output is correct
66 Correct 4 ms 17240 KB Output is correct
67 Correct 97 ms 33740 KB Output is correct
68 Correct 106 ms 34796 KB Output is correct
69 Correct 101 ms 30516 KB Output is correct
70 Correct 107 ms 30876 KB Output is correct
71 Correct 112 ms 30924 KB Output is correct
72 Correct 141 ms 40960 KB Output is correct
73 Correct 90 ms 29232 KB Output is correct
74 Correct 60 ms 24372 KB Output is correct
75 Correct 116 ms 39840 KB Output is correct
76 Correct 99 ms 33356 KB Output is correct
77 Correct 95 ms 33924 KB Output is correct
78 Correct 93 ms 34764 KB Output is correct
79 Correct 107 ms 41032 KB Output is correct
80 Correct 74 ms 40024 KB Output is correct
81 Correct 137 ms 31436 KB Output is correct
82 Correct 154 ms 31588 KB Output is correct
83 Correct 119 ms 40904 KB Output is correct
84 Correct 89 ms 34072 KB Output is correct
85 Correct 144 ms 31624 KB Output is correct
86 Correct 130 ms 40904 KB Output is correct
87 Correct 132 ms 40892 KB Output is correct
88 Correct 97 ms 31436 KB Output is correct
89 Correct 102 ms 30044 KB Output is correct
90 Correct 138 ms 31436 KB Output is correct
91 Correct 150 ms 31184 KB Output is correct
92 Correct 152 ms 31064 KB Output is correct
93 Correct 153 ms 31696 KB Output is correct
94 Correct 109 ms 31184 KB Output is correct
95 Correct 85 ms 33736 KB Output is correct
96 Correct 73 ms 37072 KB Output is correct
97 Correct 66 ms 25300 KB Output is correct
98 Correct 93 ms 29388 KB Output is correct
99 Correct 108 ms 30156 KB Output is correct
100 Correct 31 ms 20312 KB Output is correct
101 Correct 153 ms 31180 KB Output is correct
102 Correct 106 ms 30424 KB Output is correct
103 Correct 129 ms 30708 KB Output is correct
104 Correct 138 ms 31440 KB Output is correct