oj.uz

Submission #881755

# Submission time Handle Problem Language Result Execution time Memory
881755 2023-12-01T20:25:22 Z Juan Stranded Far From Home (BOI22_island) C++17
100 / 100
 377 ms 63824 KB 
#include<bits/stdc++.h>
using namespace std;
// #pragma GCC optimize (03)
#define int long long
#define ll long long
#define ld long double
#define tii tuple<int,int,int>
#define tii4 tuple<int,int,int,int>
#define pii pair<int,int>
#define ff first
#define ss second
#define all(x) x.begin(),x.end()
#define pb push_back
#define ppb pop_back
#define ppf pop_front
#define mp make_pair
const int maxn=2e5+5, M=1e6, INF=0x3f3f3f3f, MOD=998244353;

int v[maxn], poder[maxn], pai[maxn], mark[maxn], ans[maxn];
pii aux[maxn];
set<pii> adj[maxn];

int find(int x){
	if(mark[x]) return pai[x];
	mark[x]=true;
	if(pai[x]==-1) return -1;
	return pai[x]=find(pai[x]);
}

int solve(){
	int n,m; cin >> n >> m;
	for(int i=1; i<=n; i++){
		cin >> v[i];
		aux[i]={v[i],i};
		poder[i]=v[i];
	}
	for(int i=1; i<=m; i++){
		int a,b; cin >> a >> b;
		adj[a].insert({v[b],b});
		adj[b].insert({v[a],a});
	}
	sort(aux+1, aux+1+n);
	for(int i=1; i<n; i++){
		auto[val_cur, cur] = aux[i];
		mark[cur]=true;
		pii wow = *adj[cur].begin();
		while(mark[wow.ss]){
			adj[cur].erase(adj[cur].begin());
			wow = *adj[cur].begin();
		}
		auto[val_viz,viz] = *adj[cur].begin();
		if(v[viz]<=poder[cur]) pai[cur]=viz;
		else pai[cur]=-1;
		// cout << cur << " " << viz << " " << pai[cur] << endl;
		poder[viz]+=poder[cur];
		if(adj[viz].size()<adj[cur].size()) swap(adj[cur],adj[viz]);
		for(pii x : adj[cur]) adj[viz].insert(x);
	}

	memset(mark,0,sizeof mark);
	int last = aux[n].ss;
	ans[last]=1;
	pai[last]=last, mark[last]=true;
	// for(int i=1; i<=n; i++) cout << pai[i] << " ";
	// cout << endl;
	for(int i=1; i<=n; i++)if(!mark[i]) find(i);
	for(int i=1; i<=n; i++){
		if(pai[i]==-1) cout << 0;
		else cout << ans[pai[i]];
	}
	cout << '\n';


	return 0;
}

int32_t main(){
	ios::sync_with_stdio(false); cin.tie(0);
	mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
	int t=1;
	// cin >> t;
	while(t--){
		if(solve()) break;
	}
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 16984 KB Output is correct
2 Correct 4 ms 16988 KB Output is correct
3 Correct 3 ms 17056 KB Output is correct
4 Correct 5 ms 17244 KB Output is correct
5 Correct 5 ms 17360 KB Output is correct
6 Correct 4 ms 17244 KB Output is correct
7 Correct 4 ms 17364 KB Output is correct
8 Correct 4 ms 17244 KB Output is correct
9 Correct 4 ms 17244 KB Output is correct
10 Correct 4 ms 17244 KB Output is correct
11 Correct 5 ms 17240 KB Output is correct
12 Correct 5 ms 17240 KB Output is correct
13 Correct 4 ms 17244 KB Output is correct
14 Correct 4 ms 17244 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 16988 KB Output is correct
2 Correct 3 ms 17036 KB Output is correct
3 Correct 165 ms 50340 KB Output is correct
4 Correct 181 ms 51284 KB Output is correct
5 Correct 212 ms 49492 KB Output is correct
6 Correct 236 ms 52048 KB Output is correct
7 Correct 241 ms 52052 KB Output is correct
8 Correct 276 ms 56492 KB Output is correct
9 Correct 206 ms 53324 KB Output is correct
10 Correct 260 ms 49492 KB Output is correct
11 Correct 221 ms 51796 KB Output is correct
12 Correct 279 ms 52124 KB Output is correct
13 Correct 162 ms 51448 KB Output is correct
14 Correct 171 ms 51376 KB Output is correct
15 Correct 149 ms 50480 KB Output is correct
16 Correct 81 ms 49232 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 16988 KB Output is correct
2 Correct 329 ms 55980 KB Output is correct
3 Correct 302 ms 56012 KB Output is correct
4 Correct 169 ms 52924 KB Output is correct
5 Correct 150 ms 50516 KB Output is correct
6 Correct 312 ms 56488 KB Output is correct
7 Correct 201 ms 50496 KB Output is correct
8 Correct 217 ms 50512 KB Output is correct
9 Correct 80 ms 49276 KB Output is correct
10 Correct 211 ms 63592 KB Output is correct
11 Correct 231 ms 55080 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 16988 KB Output is correct
2 Correct 353 ms 54540 KB Output is correct
3 Correct 319 ms 54096 KB Output is correct
4 Correct 359 ms 54468 KB Output is correct
5 Correct 301 ms 54304 KB Output is correct
6 Correct 294 ms 54948 KB Output is correct
7 Correct 235 ms 51796 KB Output is correct
8 Correct 125 ms 56776 KB Output is correct
9 Correct 296 ms 52052 KB Output is correct
10 Correct 283 ms 52948 KB Output is correct
11 Correct 275 ms 55300 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 16984 KB Output is correct
2 Correct 4 ms 16988 KB Output is correct
3 Correct 3 ms 17056 KB Output is correct
4 Correct 5 ms 17244 KB Output is correct
5 Correct 5 ms 17360 KB Output is correct
6 Correct 4 ms 17244 KB Output is correct
7 Correct 4 ms 17364 KB Output is correct
8 Correct 4 ms 17244 KB Output is correct
9 Correct 4 ms 17244 KB Output is correct
10 Correct 4 ms 17244 KB Output is correct
11 Correct 5 ms 17240 KB Output is correct
12 Correct 5 ms 17240 KB Output is correct
13 Correct 4 ms 17244 KB Output is correct
14 Correct 4 ms 17244 KB Output is correct
15 Correct 3 ms 16988 KB Output is correct
16 Correct 3 ms 17036 KB Output is correct
17 Correct 165 ms 50340 KB Output is correct
18 Correct 181 ms 51284 KB Output is correct
19 Correct 212 ms 49492 KB Output is correct
20 Correct 236 ms 52048 KB Output is correct
21 Correct 241 ms 52052 KB Output is correct
22 Correct 276 ms 56492 KB Output is correct
23 Correct 206 ms 53324 KB Output is correct
24 Correct 260 ms 49492 KB Output is correct
25 Correct 221 ms 51796 KB Output is correct
26 Correct 279 ms 52124 KB Output is correct
27 Correct 162 ms 51448 KB Output is correct
28 Correct 171 ms 51376 KB Output is correct
29 Correct 149 ms 50480 KB Output is correct
30 Correct 81 ms 49232 KB Output is correct
31 Correct 3 ms 16988 KB Output is correct
32 Correct 329 ms 55980 KB Output is correct
33 Correct 302 ms 56012 KB Output is correct
34 Correct 169 ms 52924 KB Output is correct
35 Correct 150 ms 50516 KB Output is correct
36 Correct 312 ms 56488 KB Output is correct
37 Correct 201 ms 50496 KB Output is correct
38 Correct 217 ms 50512 KB Output is correct
39 Correct 80 ms 49276 KB Output is correct
40 Correct 211 ms 63592 KB Output is correct
41 Correct 231 ms 55080 KB Output is correct
42 Correct 3 ms 16988 KB Output is correct
43 Correct 353 ms 54540 KB Output is correct
44 Correct 319 ms 54096 KB Output is correct
45 Correct 359 ms 54468 KB Output is correct
46 Correct 301 ms 54304 KB Output is correct
47 Correct 294 ms 54948 KB Output is correct
48 Correct 235 ms 51796 KB Output is correct
49 Correct 125 ms 56776 KB Output is correct
50 Correct 296 ms 52052 KB Output is correct
51 Correct 283 ms 52948 KB Output is correct
52 Correct 275 ms 55300 KB Output is correct
53 Correct 3 ms 16988 KB Output is correct
54 Correct 3 ms 16984 KB Output is correct
55 Correct 3 ms 16988 KB Output is correct
56 Correct 4 ms 17308 KB Output is correct
57 Correct 5 ms 17248 KB Output is correct
58 Correct 4 ms 17244 KB Output is correct
59 Correct 4 ms 17244 KB Output is correct
60 Correct 4 ms 17244 KB Output is correct
61 Correct 4 ms 17244 KB Output is correct
62 Correct 4 ms 17412 KB Output is correct
63 Correct 4 ms 17264 KB Output is correct
64 Correct 4 ms 17244 KB Output is correct
65 Correct 4 ms 17304 KB Output is correct
66 Correct 4 ms 17496 KB Output is correct
67 Correct 181 ms 50260 KB Output is correct
68 Correct 175 ms 51284 KB Output is correct
69 Correct 246 ms 49392 KB Output is correct
70 Correct 223 ms 51976 KB Output is correct
71 Correct 224 ms 52056 KB Output is correct
72 Correct 287 ms 56572 KB Output is correct
73 Correct 194 ms 53336 KB Output is correct
74 Correct 257 ms 49548 KB Output is correct
75 Correct 215 ms 51792 KB Output is correct
76 Correct 269 ms 52068 KB Output is correct
77 Correct 184 ms 51308 KB Output is correct
78 Correct 170 ms 51280 KB Output is correct
79 Correct 153 ms 50328 KB Output is correct
80 Correct 85 ms 49428 KB Output is correct
81 Correct 309 ms 55952 KB Output is correct
82 Correct 310 ms 56148 KB Output is correct
83 Correct 175 ms 53000 KB Output is correct
84 Correct 153 ms 50560 KB Output is correct
85 Correct 310 ms 56056 KB Output is correct
86 Correct 220 ms 50300 KB Output is correct
87 Correct 253 ms 50264 KB Output is correct
88 Correct 202 ms 63824 KB Output is correct
89 Correct 232 ms 55172 KB Output is correct
90 Correct 346 ms 54608 KB Output is correct
91 Correct 366 ms 54196 KB Output is correct
92 Correct 336 ms 54268 KB Output is correct
93 Correct 309 ms 54264 KB Output is correct
94 Correct 307 ms 54868 KB Output is correct
95 Correct 252 ms 51604 KB Output is correct
96 Correct 123 ms 56408 KB Output is correct
97 Correct 315 ms 51796 KB Output is correct
98 Correct 307 ms 52848 KB Output is correct
99 Correct 244 ms 55080 KB Output is correct
100 Correct 286 ms 44732 KB Output is correct
101 Correct 350 ms 54352 KB Output is correct
102 Correct 377 ms 60680 KB Output is correct
103 Correct 375 ms 58080 KB Output is correct
104 Correct 353 ms 54748 KB Output is correct