oj.uz

Submission #603926

# Submission time Handle Problem Language Result Execution time Memory
603926 2022-07-24T13:21:43 Z MohamedAhmed04 Stranded Far From Home (BOI22_island) C++14
100 / 100
 282 ms 38464 KB 
#include <bits/stdc++.h>

using namespace std ;

const int MAX = 2e5 + 10 ;

int arr[MAX] ;
int n , m ;

vector< vector<int> >adj(MAX) ;

int par[MAX] , sz[MAX] ;
long long val[MAX] ;
vector<int>v[MAX] ;

void init()
{
	for(int i = 1 ; i <= n ; ++i)
		par[i] = i , sz[i] = 1 , val[i] = arr[i] , v[i].push_back(i) ;
}

int root(int node)
{
	if(par[node] == node)
		return node ;
	return (par[node] = root(par[node])) ;
}

void Union(int x , int y)
{
	int a = root(x) ;
	int b = root(y) ;
	if(sz[a] < sz[b])
		swap(a , b) ;
	while(v[b].size())
		v[a].push_back(v[b].back()) , v[b].pop_back() ;
	par[b] = a ;
	sz[a] += sz[b] ;
	val[a] += val[b] ;
}

int mark[MAX] , ans[MAX] ;

int main()
{
	ios_base::sync_with_stdio(0) ;
	cin.tie(0) ;
	cin>>n>>m ;
	for(int i = 1 ; i <= n ; ++i)
		cin>>arr[i] ;
	for(int i = 0 ; i < m ; ++i)
	{
		int x , y ;
		cin>>x>>y ;
		adj[x].push_back(y) ;
		adj[y].push_back(x) ;
	}
	vector< pair<int , int> >vp ;
	for(int i = 1 ; i <= n ; ++i)
		vp.emplace_back(arr[i] , i) ;
	sort(vp.begin() , vp.end()) ;
	init() ;
	for(auto &p : vp)
	{
		int node = p.second ;
		for(auto &child : adj[node])
		{
			if((!mark[child]) || root(node) == root(child))
				continue ;
			int r = root(child) ;
			if(val[r] < arr[node])
				v[r].clear() ;
			Union(node , child) ;
		}
		mark[node] = 1 ;
	}
	for(auto &node : v[root(1)])
		ans[node] = 1 ;
	for(int i = 1 ; i <= n ; ++i)
		cout<<ans[i] ;
	cout<<"\n" ;
	return 0 ;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 5 ms 9732 KB Output is correct
4 Correct 7 ms 9940 KB Output is correct
5 Correct 6 ms 9940 KB Output is correct
6 Correct 6 ms 9812 KB Output is correct
7 Correct 7 ms 9812 KB Output is correct
8 Correct 7 ms 9812 KB Output is correct
9 Correct 7 ms 9940 KB Output is correct
10 Correct 6 ms 9868 KB Output is correct
11 Correct 6 ms 9940 KB Output is correct
12 Correct 6 ms 9948 KB Output is correct
13 Correct 6 ms 9940 KB Output is correct
14 Correct 6 ms 9884 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 179 ms 31120 KB Output is correct
4 Correct 157 ms 30524 KB Output is correct
5 Correct 180 ms 32036 KB Output is correct
6 Correct 193 ms 32792 KB Output is correct
7 Correct 201 ms 32816 KB Output is correct
8 Correct 164 ms 31244 KB Output is correct
9 Correct 161 ms 33564 KB Output is correct
10 Correct 115 ms 29408 KB Output is correct
11 Correct 158 ms 31988 KB Output is correct
12 Correct 179 ms 29980 KB Output is correct
13 Correct 145 ms 30560 KB Output is correct
14 Correct 147 ms 30492 KB Output is correct
15 Correct 163 ms 31204 KB Output is correct
16 Correct 113 ms 31064 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 213 ms 33460 KB Output is correct
3 Correct 237 ms 36200 KB Output is correct
4 Correct 209 ms 35328 KB Output is correct
5 Correct 155 ms 32932 KB Output is correct
6 Correct 223 ms 36848 KB Output is correct
7 Correct 166 ms 34620 KB Output is correct
8 Correct 162 ms 34544 KB Output is correct
9 Correct 98 ms 33476 KB Output is correct
10 Correct 166 ms 32044 KB Output is correct
11 Correct 155 ms 33208 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 205 ms 31284 KB Output is correct
3 Correct 222 ms 35900 KB Output is correct
4 Correct 276 ms 34384 KB Output is correct
5 Correct 217 ms 38464 KB Output is correct
6 Correct 282 ms 35052 KB Output is correct
7 Correct 148 ms 36316 KB Output is correct
8 Correct 115 ms 33180 KB Output is correct
9 Correct 108 ms 23232 KB Output is correct
10 Correct 205 ms 36168 KB Output is correct
11 Correct 188 ms 32260 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 9684 KB Output is correct
2 Correct 5 ms 9684 KB Output is correct
3 Correct 5 ms 9732 KB Output is correct
4 Correct 7 ms 9940 KB Output is correct
5 Correct 6 ms 9940 KB Output is correct
6 Correct 6 ms 9812 KB Output is correct
7 Correct 7 ms 9812 KB Output is correct
8 Correct 7 ms 9812 KB Output is correct
9 Correct 7 ms 9940 KB Output is correct
10 Correct 6 ms 9868 KB Output is correct
11 Correct 6 ms 9940 KB Output is correct
12 Correct 6 ms 9948 KB Output is correct
13 Correct 6 ms 9940 KB Output is correct
14 Correct 6 ms 9884 KB Output is correct
15 Correct 6 ms 9684 KB Output is correct
16 Correct 5 ms 9684 KB Output is correct
17 Correct 179 ms 31120 KB Output is correct
18 Correct 157 ms 30524 KB Output is correct
19 Correct 180 ms 32036 KB Output is correct
20 Correct 193 ms 32792 KB Output is correct
21 Correct 201 ms 32816 KB Output is correct
22 Correct 164 ms 31244 KB Output is correct
23 Correct 161 ms 33564 KB Output is correct
24 Correct 115 ms 29408 KB Output is correct
25 Correct 158 ms 31988 KB Output is correct
26 Correct 179 ms 29980 KB Output is correct
27 Correct 145 ms 30560 KB Output is correct
28 Correct 147 ms 30492 KB Output is correct
29 Correct 163 ms 31204 KB Output is correct
30 Correct 113 ms 31064 KB Output is correct
31 Correct 5 ms 9684 KB Output is correct
32 Correct 213 ms 33460 KB Output is correct
33 Correct 237 ms 36200 KB Output is correct
34 Correct 209 ms 35328 KB Output is correct
35 Correct 155 ms 32932 KB Output is correct
36 Correct 223 ms 36848 KB Output is correct
37 Correct 166 ms 34620 KB Output is correct
38 Correct 162 ms 34544 KB Output is correct
39 Correct 98 ms 33476 KB Output is correct
40 Correct 166 ms 32044 KB Output is correct
41 Correct 155 ms 33208 KB Output is correct
42 Correct 5 ms 9684 KB Output is correct
43 Correct 205 ms 31284 KB Output is correct
44 Correct 222 ms 35900 KB Output is correct
45 Correct 276 ms 34384 KB Output is correct
46 Correct 217 ms 38464 KB Output is correct
47 Correct 282 ms 35052 KB Output is correct
48 Correct 148 ms 36316 KB Output is correct
49 Correct 115 ms 33180 KB Output is correct
50 Correct 108 ms 23232 KB Output is correct
51 Correct 205 ms 36168 KB Output is correct
52 Correct 188 ms 32260 KB Output is correct
53 Correct 5 ms 9740 KB Output is correct
54 Correct 5 ms 9684 KB Output is correct
55 Correct 6 ms 9684 KB Output is correct
56 Correct 8 ms 9940 KB Output is correct
57 Correct 7 ms 10012 KB Output is correct
58 Correct 7 ms 9940 KB Output is correct
59 Correct 9 ms 9888 KB Output is correct
60 Correct 7 ms 9840 KB Output is correct
61 Correct 8 ms 9896 KB Output is correct
62 Correct 8 ms 10008 KB Output is correct
63 Correct 7 ms 9936 KB Output is correct
64 Correct 6 ms 9908 KB Output is correct
65 Correct 6 ms 9880 KB Output is correct
66 Correct 7 ms 9960 KB Output is correct
67 Correct 173 ms 35080 KB Output is correct
68 Correct 174 ms 33384 KB Output is correct
69 Correct 202 ms 36112 KB Output is correct
70 Correct 203 ms 36124 KB Output is correct
71 Correct 177 ms 34244 KB Output is correct
72 Correct 188 ms 34500 KB Output is correct
73 Correct 213 ms 36612 KB Output is correct
74 Correct 118 ms 31104 KB Output is correct
75 Correct 162 ms 34080 KB Output is correct
76 Correct 213 ms 31812 KB Output is correct
77 Correct 171 ms 32312 KB Output is correct
78 Correct 162 ms 32320 KB Output is correct
79 Correct 165 ms 35004 KB Output is correct
80 Correct 95 ms 34748 KB Output is correct
81 Correct 241 ms 35948 KB Output is correct
82 Correct 215 ms 36572 KB Output is correct
83 Correct 151 ms 31336 KB Output is correct
84 Correct 141 ms 32572 KB Output is correct
85 Correct 217 ms 37828 KB Output is correct
86 Correct 163 ms 35636 KB Output is correct
87 Correct 174 ms 35548 KB Output is correct
88 Correct 188 ms 31292 KB Output is correct
89 Correct 181 ms 30464 KB Output is correct
90 Correct 236 ms 33768 KB Output is correct
91 Correct 228 ms 36064 KB Output is correct
92 Correct 227 ms 37188 KB Output is correct
93 Correct 233 ms 37556 KB Output is correct
94 Correct 209 ms 34648 KB Output is correct
95 Correct 154 ms 35572 KB Output is correct
96 Correct 100 ms 32760 KB Output is correct
97 Correct 148 ms 22968 KB Output is correct
98 Correct 191 ms 37088 KB Output is correct
99 Correct 164 ms 33044 KB Output is correct
100 Correct 54 ms 13900 KB Output is correct
101 Correct 223 ms 36272 KB Output is correct
102 Correct 159 ms 30156 KB Output is correct
103 Correct 198 ms 27412 KB Output is correct
104 Correct 207 ms 31144 KB Output is correct