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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#161140 | #7108. Couleur | ucup-team197# | AC ✓ | 3930ms | 66980kb | C++14 | 4.4kb | 2023-09-02 22:36:05 | 2023-09-02 22:36:06 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std ;
typedef long long ll ;
typedef unsigned long long ull ;
typedef pair < int , int > pii ;
typedef vector < int > vi ;
#define fi first
#define se second
mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
#define rep(i, a, b) for(int i = a; i < (b); ++i)
#define all(x) begin(x), end(x)
#define sz(x) (int)(x).size()
const int MAXN = 1e5 + 7 ;
int n ;
int a[ MAXN ] ;
struct node {
int cnt ;
int pl , pr ;
node ( ) { cnt = pl = pr = 0 ; }
};
int tp ;
node tr[ 40 * MAXN ] ;
int root[ MAXN ] ;
int init ( int l , int r ) {
int ret = ++ tp ;
if ( l == r ) { return ret ; }
int mid = ( l + r ) / 2 ;
tr[ ret ].pl = init ( l , mid ) ;
tr[ ret ].pr = init ( mid + 1 , r ) ;
return ret ;
}
int update ( int w , int l , int r , int pos ) {
int ret = ++ tp ;
tr[ ret ].cnt = tr[ w ].cnt + 1 ; tr[ ret ].pl = tr[ w ].pl , tr[ ret ].pr = tr[ w ].pr ;
if ( l == r ) {
return ret ;
}
int mid = ( l + r ) / 2 ;
if ( pos <= mid ) { tr[ ret ].pl = update ( tr[ w ].pl , l , mid , pos ) ; }
else { tr[ ret ].pr = update ( tr[ w ].pr , mid + 1 , r , pos ) ; }
return ret ;
}
int query ( int w , int l , int r , int st , int en ) {
if ( l > r || st > en ) { return 0 ; }
if ( r < st || en < l ) { return 0 ; }
if ( st <= l && r <= en ) { return tr[ w ].cnt ; }
int mid = ( l + r ) / 2 ;
return query ( tr[ w ].pl , l , mid , st , en ) + query ( tr[ w ].pr , mid + 1 , r , st , en ) ;
}
set < int > s ;
multiset < ll > all_vals ;
map < pii , ll > w ;
void solve ( ) {
cin >> n ;
for ( int i = 1 ; i <= n ; ++ i ) {
cin >> a[ i ] ;
}
tp = 0 ;
root[ 0 ] = init ( 1 , n ) ;
ll lstans = 0 ;
for ( int i = 1 ; i <= n ; ++ i ) {
root[ i ] = update ( root[ i - 1 ] , 1 , n , a[ i ] ) ;
lstans += query ( root[ i - 1 ] , 1 , n , a[ i ] + 1 , n ) ;
}
s.clear ( ) ;
s.insert ( 0 ) ;
s.insert ( n + 1 ) ;
w.clear ( ) ;
all_vals.clear ( ) ;
w[ { 0 , n + 1 } ] = lstans ;
all_vals.insert ( lstans ) ;
cout << lstans << " " ;
for ( int i = 1 ; i <= n ; ++ i ) {
ll x ; cin >> x ;
x ^= lstans ;
if ( i == n ) { break ; }
auto it1 = s.upper_bound ( x ) ;
auto it2 = s.upper_bound ( x ) ;
-- it2 ;
int prv = *it2 , nxt = *it1 ;
s.insert ( x ) ;
ll l_side , r_side ;
ll tot = w[ { prv , nxt } ] ;
w.erase ( { prv , nxt } ) ;
auto foo = all_vals.find ( tot ) ;
all_vals.erase ( foo ) ;
ll aux = 0 ;
if ( x - prv < nxt - x ) {
for ( int i = prv + 1 ; i <= x ; ++ i ) {
if ( i < x ) {
aux += query ( root[ i - 1 ] , 1 , n , a[ i ] + 1 , n ) - query ( root[ prv ] , 1 , n , a[ i ] + 1 , n ) ;
}
else {
tot -= query ( root[ i - 1 ] , 1 , n , a[ i ] + 1 , n ) - query ( root[ prv ] , 1 , n , a[ i ] + 1 , n ) ;
}
tot -= query ( root[ nxt - 1 ] , 1 , n , 1 , a[ i ] - 1 ) - query ( root[ x ] , 1 , n , 1 , a[ i ] - 1 ) ;
}
tot -= aux ;
w[ { prv , x } ] = aux ;
w[ { x , nxt } ] = tot ;
all_vals.insert ( aux ) ;
all_vals.insert ( tot ) ;
}
else {
for ( int i = x ; i < nxt ; ++ i ) {
if ( i > x ) {
aux += query ( root[ i - 1 ] , 1 , n , a[ i ] + 1 , n ) - query ( root[ x ] , 1 , n , a[ i ] + 1 , n ) ;
}
else {
tot -= query ( root[ nxt - 1 ] , 1 , n , 1 , a[ i ] - 1 ) - query ( root[ x ] , 1 , n , 1 , a[ i ] - 1 ) ;
}
tot -= query ( root[ x - 1 ] , 1 , n , a[ i ] + 1 , n ) - query ( root[ prv ] , 1 , n , a[ i ] + 1 , n ) ;
}
tot -= aux ;
w[ { prv , x } ] = tot ;
w[ { x , nxt } ] = aux ;
all_vals.insert ( aux ) ;
all_vals.insert ( tot ) ;
}
lstans = *all_vals.rbegin ( ) ;
cout << lstans << " " ;
}
cout << "\n" ;
for ( int i = 0 ; i <= tp ; ++ i ) {
tr[ i ] = node ( ) ;
}
}
int main ( ) {
ios_base :: sync_with_stdio ( false ) ;
cin.tie ( NULL ) ;
int t = 1 ; cin >> t ;
while ( t -- ) { solve ( ) ; }
return 0 ;
}
这程序好像有点Bug,我给组数据试试?
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 2ms
memory: 50576kb
input:
3 5 4 3 1 1 1 5 4 5 3 1 10 9 7 1 4 7 8 5 7 4 8 21 8 15 5 9 2 4 5 10 6 15 4 8 8 1 12 1 10 14 7 14 2 9 13 10 3 37 19 23 15 7 2 10 15 2 13 4 5 8 7 10
output:
7 0 0 0 0 20 11 7 2 0 0 0 0 0 0 42 31 21 14 14 4 1 1 1 0 0 0 0 0 0
result:
ok 3 lines
Test #2:
score: 0
Accepted
time: 3930ms
memory: 66980kb
input:
11116 10 10 5 10 3 6 4 8 5 9 8 31 27 24 11 12 3 0 2 3 1 10 8 2 7 2 8 10 1 10 9 10 6 5 2 13 2 1 0 1 3 1 10 7 10 7 6 1 3 10 6 7 9 21 18 10 1 6 5 4 8 9 10 10 2 10 4 8 8 5 7 2 6 7 20 10 9 1 15 0 4 2 9 7 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 10 1 2 3 4 5 6 7 8 9 10 6 3 5 2 7 10 9 1 4 8 10 1 10 1 3...
output:
21 18 16 12 10 6 4 1 1 0 12 12 10 10 4 4 4 2 1 0 20 16 9 5 3 3 3 0 0 0 22 14 8 8 5 5 2 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 19 12 7 4 4 2 2 1 0 0 20 18 8 3 1 1 0 0 0 0 45 21 21 10 3 3 3 0 0 0 17 11 8 2 1 1 1 0 0 0 13 4 1 0 0 0 0 0 0 0 29 27 22 15 9 7 4 3 1 0 26 16 9 2 1 1 1 1 1 ...
result:
ok 11116 lines
Extra Test:
score: 0
Extra Test Passed