oj.uz

Submission #719942

# Submission time Handle Problem Language Result Execution time Memory
719942 2023-04-07T06:21:47 Z vinnipuh01 Stranded Far From Home (BOI22_island) C++17
100 / 100
 604 ms 72352 KB 
#include <iostream>
#include <bits/stdc++.h>
#include <cmath>
#include <algorithm>
#include <vector>
#include <deque>
#include <set>
#include <stack>
#include <string>
#include <map>
#include <queue>
#define int long long
#define sqrt sqrtl

using namespace std;

const long long oo = 1000000000000000000;

long long sum, ans = 0, mx = 0, mn = 1000000000, num, pos;


/*
    ViHHiPuh

   (( `'-""``""-'` ))
     )-__-_.._-__-(
   / --- (o _ o) --- \
   \ .-* ( .0. ) *-. /
   _'-. ,_ '=' _, .-'_
  / `;#'#'# - #'#'#;` \
 \_)) -----'#'----- ((_/
      # --------- #
  '# ------- ------ #'
  /..-'# ------- #'-.\
  _\...-\'# -- #'/-.../_
  ((____)- '#' -(____))


    cout << fixed << setprecision(6) << x;

    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    freopen ( "sum.in", "r", stdin )
*/

int n, m, a[ 200001 ], x, y, p[ 200001 ], r[ 200001 ], c[ 200001 ];
int an[ 200001 ];
vector <int> v[ 200001 ], v1;
vector <pair<int, pair<int, int> > > vv;
map <int, vector <int> > mp;
set <int> s[ 200001 ];
set <int> st, stt;
int used[ 200001 ];

pair<int, int> fin( int a, int ans ) {
	if ( p[ a ] == a )
		return { a, an[ a ] };
	pair<int, int> pp = fin( p[ a ], 1 );
	ans = an[ a ] & pp.second;
	p[ a ] = pp.first;
	an[ a ] = ans;
	return { p[ a ], ans };
}

void unin( int a, int b ) {
	a = fin( a, an[ a ] ).first;
	b = fin( b, an[ b ] ).first;
	if ( a == b )
		return;
	if ( ::a[ a ] < ::a[ b ] )
		swap( a, b );
	if ( r[ a ] < r[ b ] && ::a[ a ] <= ::a[ b ] )
		swap( a, b );
	r[ a ] += r[ b ];
	c[ a ] += c[ b ];
	p[ b ] = a;
}

main () {
	cin >> n >> m;
	for ( int i = 1; i <= n; i ++ ) {
		cin >> a[ i ]; 
		an[ i ] = 1;
		p[ i ] = i;
		r[ i ] = 1;
		c[ i ] = a[ i ];
		mp[ a[ i ] ].push_back( i );  
		st.insert( a[ i ] );
	}
	for ( int i = 1; i <= m; i ++ ) {
		cin >> x >> y;
		if ( a[ x ] < a[ y ] )
			swap( x, y );
		vv.push_back( { a[ x ], make_pair( x, y ) } );
	}
	sort( vv.begin(), vv.end() );
	reverse( vv.begin(), vv.end() );
	stt = st;
	for ( auto i : st ) {
		if ( stt.size() )
			stt.erase( stt.begin() );
		if ( stt.size() )
			ans = *stt.begin();
		else
			ans = 0;
		while ( vv.size() && vv.back().first <= i ) {
			num = fin( vv.back().second.second, an[ vv.back().second.second ] ).first;
			if ( c[ num ] < vv.back().first ) {
				an[ num ] = 0;
			}
			v[ vv.back().second.first ].push_back( vv.back().second.second );
			v[ vv.back().second.second ].push_back( vv.back().second.first );
			unin( vv.back().second.first, vv.back().second.second );
			vv.pop_back();
		}
	}
	for ( int i = 1; i <= n; i ++ ) {
		fin( i, an[ i ] );
		cout << an[ i ];
	}
}

Compilation message

island.cpp:80:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   80 | main () {
      | ^~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14420 KB Output is correct
2 Correct 7 ms 14420 KB Output is correct
3 Correct 8 ms 14420 KB Output is correct
4 Correct 10 ms 14912 KB Output is correct
5 Correct 10 ms 14932 KB Output is correct
6 Correct 9 ms 14548 KB Output is correct
7 Correct 11 ms 14804 KB Output is correct
8 Correct 10 ms 14736 KB Output is correct
9 Correct 9 ms 14548 KB Output is correct
10 Correct 11 ms 14932 KB Output is correct
11 Correct 13 ms 14924 KB Output is correct
12 Correct 10 ms 14932 KB Output is correct
13 Correct 9 ms 14616 KB Output is correct
14 Correct 10 ms 14568 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14548 KB Output is correct
2 Correct 7 ms 14420 KB Output is correct
3 Correct 368 ms 68128 KB Output is correct
4 Correct 202 ms 35720 KB Output is correct
5 Correct 390 ms 66068 KB Output is correct
6 Correct 382 ms 58320 KB Output is correct
7 Correct 414 ms 67876 KB Output is correct
8 Correct 280 ms 35912 KB Output is correct
9 Correct 391 ms 60588 KB Output is correct
10 Correct 306 ms 59916 KB Output is correct
11 Correct 206 ms 36496 KB Output is correct
12 Correct 236 ms 35908 KB Output is correct
13 Correct 190 ms 34880 KB Output is correct
14 Correct 201 ms 34872 KB Output is correct
15 Correct 368 ms 67960 KB Output is correct
16 Correct 314 ms 67368 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14428 KB Output is correct
2 Correct 604 ms 67812 KB Output is correct
3 Correct 520 ms 60116 KB Output is correct
4 Correct 252 ms 36636 KB Output is correct
5 Correct 194 ms 36736 KB Output is correct
6 Correct 583 ms 69804 KB Output is correct
7 Correct 363 ms 69664 KB Output is correct
8 Correct 363 ms 69716 KB Output is correct
9 Correct 329 ms 69252 KB Output is correct
10 Correct 309 ms 51676 KB Output is correct
11 Correct 231 ms 38000 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14420 KB Output is correct
2 Correct 307 ms 35992 KB Output is correct
3 Correct 324 ms 40128 KB Output is correct
4 Correct 322 ms 40632 KB Output is correct
5 Correct 311 ms 40236 KB Output is correct
6 Correct 299 ms 39416 KB Output is correct
7 Correct 241 ms 40848 KB Output is correct
8 Correct 213 ms 39720 KB Output is correct
9 Correct 223 ms 32060 KB Output is correct
10 Correct 289 ms 38740 KB Output is correct
11 Correct 229 ms 37916 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14420 KB Output is correct
2 Correct 7 ms 14420 KB Output is correct
3 Correct 8 ms 14420 KB Output is correct
4 Correct 10 ms 14912 KB Output is correct
5 Correct 10 ms 14932 KB Output is correct
6 Correct 9 ms 14548 KB Output is correct
7 Correct 11 ms 14804 KB Output is correct
8 Correct 10 ms 14736 KB Output is correct
9 Correct 9 ms 14548 KB Output is correct
10 Correct 11 ms 14932 KB Output is correct
11 Correct 13 ms 14924 KB Output is correct
12 Correct 10 ms 14932 KB Output is correct
13 Correct 9 ms 14616 KB Output is correct
14 Correct 10 ms 14568 KB Output is correct
15 Correct 7 ms 14548 KB Output is correct
16 Correct 7 ms 14420 KB Output is correct
17 Correct 368 ms 68128 KB Output is correct
18 Correct 202 ms 35720 KB Output is correct
19 Correct 390 ms 66068 KB Output is correct
20 Correct 382 ms 58320 KB Output is correct
21 Correct 414 ms 67876 KB Output is correct
22 Correct 280 ms 35912 KB Output is correct
23 Correct 391 ms 60588 KB Output is correct
24 Correct 306 ms 59916 KB Output is correct
25 Correct 206 ms 36496 KB Output is correct
26 Correct 236 ms 35908 KB Output is correct
27 Correct 190 ms 34880 KB Output is correct
28 Correct 201 ms 34872 KB Output is correct
29 Correct 368 ms 67960 KB Output is correct
30 Correct 314 ms 67368 KB Output is correct
31 Correct 8 ms 14428 KB Output is correct
32 Correct 604 ms 67812 KB Output is correct
33 Correct 520 ms 60116 KB Output is correct
34 Correct 252 ms 36636 KB Output is correct
35 Correct 194 ms 36736 KB Output is correct
36 Correct 583 ms 69804 KB Output is correct
37 Correct 363 ms 69664 KB Output is correct
38 Correct 363 ms 69716 KB Output is correct
39 Correct 329 ms 69252 KB Output is correct
40 Correct 309 ms 51676 KB Output is correct
41 Correct 231 ms 38000 KB Output is correct
42 Correct 8 ms 14420 KB Output is correct
43 Correct 307 ms 35992 KB Output is correct
44 Correct 324 ms 40128 KB Output is correct
45 Correct 322 ms 40632 KB Output is correct
46 Correct 311 ms 40236 KB Output is correct
47 Correct 299 ms 39416 KB Output is correct
48 Correct 241 ms 40848 KB Output is correct
49 Correct 213 ms 39720 KB Output is correct
50 Correct 223 ms 32060 KB Output is correct
51 Correct 289 ms 38740 KB Output is correct
52 Correct 229 ms 37916 KB Output is correct
53 Correct 9 ms 14368 KB Output is correct
54 Correct 8 ms 14408 KB Output is correct
55 Correct 8 ms 14420 KB Output is correct
56 Correct 10 ms 14932 KB Output is correct
57 Correct 11 ms 14932 KB Output is correct
58 Correct 10 ms 14548 KB Output is correct
59 Correct 10 ms 14804 KB Output is correct
60 Correct 12 ms 14804 KB Output is correct
61 Correct 9 ms 14676 KB Output is correct
62 Correct 10 ms 14936 KB Output is correct
63 Correct 12 ms 15060 KB Output is correct
64 Correct 13 ms 14964 KB Output is correct
65 Correct 9 ms 14676 KB Output is correct
66 Correct 9 ms 14676 KB Output is correct
67 Correct 372 ms 72352 KB Output is correct
68 Correct 200 ms 38928 KB Output is correct
69 Correct 380 ms 70320 KB Output is correct
70 Correct 362 ms 62772 KB Output is correct
71 Correct 399 ms 72236 KB Output is correct
72 Correct 307 ms 40220 KB Output is correct
73 Correct 327 ms 64928 KB Output is correct
74 Correct 298 ms 63360 KB Output is correct
75 Correct 216 ms 39980 KB Output is correct
76 Correct 236 ms 38832 KB Output is correct
77 Correct 198 ms 37828 KB Output is correct
78 Correct 201 ms 38048 KB Output is correct
79 Correct 362 ms 72336 KB Output is correct
80 Correct 326 ms 71300 KB Output is correct
81 Correct 550 ms 71928 KB Output is correct
82 Correct 514 ms 62900 KB Output is correct
83 Correct 249 ms 39340 KB Output is correct
84 Correct 199 ms 37876 KB Output is correct
85 Correct 572 ms 72296 KB Output is correct
86 Correct 349 ms 72340 KB Output is correct
87 Correct 353 ms 72316 KB Output is correct
88 Correct 308 ms 53572 KB Output is correct
89 Correct 224 ms 39212 KB Output is correct
90 Correct 331 ms 40428 KB Output is correct
91 Correct 314 ms 40156 KB Output is correct
92 Correct 323 ms 40636 KB Output is correct
93 Correct 297 ms 40192 KB Output is correct
94 Correct 283 ms 39332 KB Output is correct
95 Correct 237 ms 40844 KB Output is correct
96 Correct 197 ms 39756 KB Output is correct
97 Correct 189 ms 32176 KB Output is correct
98 Correct 252 ms 38788 KB Output is correct
99 Correct 210 ms 37916 KB Output is correct
100 Correct 137 ms 25972 KB Output is correct
101 Correct 535 ms 63028 KB Output is correct
102 Correct 262 ms 37204 KB Output is correct
103 Correct 467 ms 56620 KB Output is correct
104 Correct 592 ms 71300 KB Output is correct