Submission #996774

# Submission time Handle Problem Language Result Execution time Memory
996774 2024-06-11T07:48:09 Z lollipop Zoltan (COCI16_zoltan) C++17
140 / 140
303 ms 26588 KB
#include<bits/stdc++.h>
//#define int long long 
#define pb push_back
#define s second
#define f first
#define pf push_front
#define inf 100000000000000000
#define bitebi __builtin_popcountll
#define FOR( i , n ) for( int i = 0 ; i < n ; i ++ )
#define FOR( j , n ) for( int j = 0 ; j < n ; j ++ )
#define FOR( k , n ) for( int k = 0 ; k < n ; k ++ )
using namespace std ;
const int mod =  1000000007 ;
const int mod1 = 998244353 ; 
const int N = 4e5 + 10 ; 
map < int , int > ma , ma1 ; 
//struct stu{
//	int num ;
//	int cnt ; 
//};
#define stu pair < int , int > 
#define num first
#define cnt second
int arr[ 400005 ] ;
stu node[ 4 * N ] ;
stu merge( stu a , stu b ){
	stu c ; 
	c.cnt = 0 ;
	c.num = max( a.num , b.num ) ; 
	long long bb = 0 ; 
	if( a.num == c.num ) bb += a.cnt ;
	if( b.num == c.num ) bb += b.cnt ;
	bb %= mod ;  
	c.cnt = bb ; 
	return c ; 
}
 
void update( int v , int vl , int vr , int pos , int numb , int cc ){
	 if( vl == vr ){
	 	arr[ pos ] = numb ;
	 	long long nw = node[ v ].cnt ; 
	 	if( node[ v ].num == numb ) nw += cc ;
	 	else 
		 nw = cc ; 
		 nw %= mod ; 
		 node[ v ].cnt = nw ;
	 	node[ v ].num = numb ;
	 	return ; 
	 }
	 int vm = ( vl + vr ) / 2 ;
	 if( vm < pos ) update( v + v + 1 , vm + 1 , vr , pos , numb , cc ) ;
	 else update( v + v , vl , vm , pos , numb , cc ) ;
	 node[ v ] = merge( node[ v + v ] , node[ v + v + 1 ] ) ;
}
stu get( int v , int vl , int vr , int l , int r ){
	if( l > r ) return { 0 , 0 } ; 
	if( vl == l && vr == r  ){
		return node[ v ] ;
	}
	int vm = ( vl + vr ) / 2 ; 
	return merge( get( v + v , vl , vm , l , min( r , vm ) ) 
    , get( v + v + 1 , vm + 1 , vr , max( l , vm + 1 ) , r ) ) ; 
}
stu node1[ 4 * N ] ; 
// second seg tree 
int arr1[ 400005 ] ;
 
void update1( int v , int vl , int vr , int pos , int numb , int cc ){
	 if( vl == vr ){
	 	arr1[ pos ] = numb ;
	 	long long nw = node1[ v ].cnt ; 
	 	if( node1[ v ].num == numb ) nw += cc ;
	 	else 
		 nw = cc ; 
		 nw %= mod ; 
		 node1[ v ].cnt = nw ; 
	 	node1[ v ].num = numb ;
	 	return ; 
	 }
	 int vm = ( vl + vr ) / 2 ;
	 if( vm < pos ) update1( v + v + 1 , vm + 1 , vr , pos , numb , cc) ;
	 else update1( v + v , vl , vm , pos , numb , cc ) ;
	 node1[ v ] = merge( node1[ v + v ] , node1[ v + v + 1 ] ) ;
}
stu get1( int v , int vl , int vr , int l , int r ){
	if( l > r ) return { 0 , 0 } ; 
	if( vl == l && vr == r  ){
		return node1[ v ] ;
	}
	int vm = ( vl + vr ) / 2 ; 
	return merge( get1( v + v , vl , vm , l , min( r , vm ) ) 
    , get1( v + v + 1 , vm + 1 , vr , max( l , vm + 1 ) , r ) ) ; 
}
int ans[ 500005 ] ; 
int xar[ 500005 ] ;	
set < int > s ;
vector < int > v( N ); 
signed main(){
    ios_base::sync_with_stdio(0),cin.tie(NULL),cout.tie(NULL); 
    int n ; 
    cin >> n ; 

	int st = 1 ;
	FOR( i , n ){
		cin >> v[ i ] ;
		s.insert( v[ i ] ) ; 
	}
	while( s.size() > 0 ){
		int x = *s.begin() ; 
		ma[ x ] = st ; 
		st ++ ; 
		s.erase( s.begin() ) ; 
	}
	st -- ; 
	int mx = 0 ; 
	xar[ 0 ] = 1 ;
	for( int j = 1 ; j <= n ; j ++ ) xar[ j ] = xar[ j - 1 ] * 2LL % mod ; 
	FOR( i , n ) v[ i ] = ma[ v[ i ] ] ;
	for( int j = n - 1 ; j >= 0 ; j -- ){
		 int x = v[ j ] ; 
		 stu M , L ; 
		 M = get( 1 , 1 , st , x + 1 , st ) ; 
		 L = get1( 1 , 1 , st , 1 , x - 1 ) ;
		 int mxx = M.num + L.num + 1 ; 
		 mx = max( mx , mxx ) ; 
		 if( M.cnt == 0 ) M.cnt = 1 ;
		 if( L.cnt == 0 ) L.cnt = 1 ;
		 update( 1 , 1 , st , x , M.num + 1 , M.cnt ) ; 
		 update1( 1 , 1 , st , x , L.num + 1 , L.cnt ) ; 
		 		 
		 
		 long long aaa = M.cnt ;
		 long long xx = L.cnt ; 
		 aaa = aaa * xx ; aaa %= mod ;
		 long long kk = xar[ n - mx ] ; 
		 aaa = aaa * kk ; aaa %= mod ;
		 aaa = aaa + ans[ mxx ] ; 
		 aaa %= mod ; 
		 ans[ mxx ] = aaa ; 
 
	}
	long long int aaa = ans[ mx ] ;
	
	cout << mx << " " << aaa ;
}

Compilation message

zoltan.cpp:10: warning: "FOR" redefined
   10 | #define FOR( j , n ) for( int j = 0 ; j < n ; j ++ )
      | 
zoltan.cpp:9: note: this is the location of the previous definition
    9 | #define FOR( i , n ) for( int i = 0 ; i < n ; i ++ )
      | 
zoltan.cpp:11: warning: "FOR" redefined
   11 | #define FOR( k , n ) for( int k = 0 ; k < n ; k ++ )
      | 
zoltan.cpp:10: note: this is the location of the previous definition
   10 | #define FOR( j , n ) for( int j = 0 ; j < n ; j ++ )
      | 
zoltan.cpp: In function 'void update(int, int, int, int, int, int)':
zoltan.cpp:43:4: warning: this 'else' clause does not guard... [-Wmisleading-indentation]
   43 |    else
      |    ^~~~
zoltan.cpp:45:4: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'else'
   45 |    nw %= mod ;
      |    ^~
zoltan.cpp: In function 'void update1(int, int, int, int, int, int)':
zoltan.cpp:73:4: warning: this 'else' clause does not guard... [-Wmisleading-indentation]
   73 |    else
      |    ^~~~
zoltan.cpp:75:4: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'else'
   75 |    nw %= mod ;
      |    ^~
# Verdict Execution time Memory Grader output
1 Correct 1 ms 5976 KB Output is correct
2 Correct 1 ms 5976 KB Output is correct
3 Correct 1 ms 5980 KB Output is correct
4 Correct 1 ms 5980 KB Output is correct
5 Correct 1 ms 5980 KB Output is correct
6 Correct 1 ms 5980 KB Output is correct
7 Correct 2 ms 6232 KB Output is correct
8 Correct 2 ms 6232 KB Output is correct
9 Correct 2 ms 6236 KB Output is correct
10 Correct 2 ms 6236 KB Output is correct
11 Correct 194 ms 24308 KB Output is correct
12 Correct 162 ms 23048 KB Output is correct
13 Correct 145 ms 18516 KB Output is correct
14 Correct 201 ms 23116 KB Output is correct
15 Correct 242 ms 24956 KB Output is correct
16 Correct 303 ms 26588 KB Output is correct
17 Correct 204 ms 25680 KB Output is correct
18 Correct 212 ms 25748 KB Output is correct
19 Correct 218 ms 25680 KB Output is correct
20 Correct 215 ms 25680 KB Output is correct