oj.uz

Submission #719935

# Submission time Handle Problem Language Result Execution time Memory
719935 2023-04-07T05:56:26 Z vinnipuh01 Stranded Far From Home (BOI22_island) C++17
10 / 100
 1000 ms 69388 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 ];

int fin( int a ) {
	if ( p[ a ] == a )
		return a;
	return p[ a ] = fin( p[ a ] );
}

void unin( int a, int b ) {
	a = fin( a );
	b = fin( b );
	if ( a == b )
		return;
	if ( r[ a ] < r[ b ] )
		swap( a, b );
	r[  a] += r[ b ];
	for ( auto i : s[ b ] )
		s[ a ].insert( i );
	c[ a ] += c[ b ];
	p[ b ] = a;
}

void dfs( int u ) {
	an[ u ] = 0;
	used[ u ] = 1;
	for ( auto to : v[ u ] ) {
		if ( !used[ to ] )
			dfs( to );
	}
}

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 );
			if ( c[ num ] < vv.back().first ) {
				dfs( vv.back().second.second );
				for ( int j = 1; j <= n; j ++ )
					used[ j ] = 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 ++ )
		cout << an[ i ];
}

Compilation message

island.cpp:85:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   85 | main () {
      | ^~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14420 KB Output is correct
2 Correct 8 ms 14420 KB Output is correct
3 Correct 7 ms 14344 KB Output is correct
4 Correct 11 ms 14932 KB Output is correct
5 Correct 12 ms 14932 KB Output is correct
6 Correct 10 ms 14676 KB Output is correct
7 Correct 10 ms 14804 KB Output is correct
8 Correct 11 ms 14804 KB Output is correct
9 Correct 9 ms 14676 KB Output is correct
10 Correct 11 ms 14932 KB Output is correct
11 Correct 12 ms 14932 KB Output is correct
12 Correct 11 ms 14864 KB Output is correct
13 Correct 9 ms 14708 KB Output is correct
14 Correct 10 ms 14676 KB Output is correct

Subtask #2
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 Execution timed out 1081 ms 69388 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14420 KB Output is correct
2 Execution timed out 1078 ms 68880 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 14420 KB Output is correct
2 Execution timed out 1068 ms 31600 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14420 KB Output is correct
2 Correct 8 ms 14420 KB Output is correct
3 Correct 7 ms 14344 KB Output is correct
4 Correct 11 ms 14932 KB Output is correct
5 Correct 12 ms 14932 KB Output is correct
6 Correct 10 ms 14676 KB Output is correct
7 Correct 10 ms 14804 KB Output is correct
8 Correct 11 ms 14804 KB Output is correct
9 Correct 9 ms 14676 KB Output is correct
10 Correct 11 ms 14932 KB Output is correct
11 Correct 12 ms 14932 KB Output is correct
12 Correct 11 ms 14864 KB Output is correct
13 Correct 9 ms 14708 KB Output is correct
14 Correct 10 ms 14676 KB Output is correct
15 Correct 7 ms 14420 KB Output is correct
16 Correct 7 ms 14420 KB Output is correct
17 Execution timed out 1081 ms 69388 KB Time limit exceeded
18 Halted 0 ms 0 KB -