oj.uz

Submission #332314

# Submission time Handle Problem Language Result Execution time Memory
332314 2020-12-02T02:49:09 Z errorgorn Fortune Telling 2 (JOI14_fortune_telling2) C++17
100 / 100
 1685 ms 159708 KB 
//雪花飄飄北風嘯嘯
//天地一片蒼茫

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/rope>
using namespace std;
using namespace __gnu_pbds;
using namespace __gnu_cxx;
#define ll long long
#define ii pair<ll,ll>
#define iii pair<ii,ll>
#define fi first
#define se second
#define endl '\n'
#define debug(x) cout << #x << " is " << x << endl

#define rep(x,start,end) for(auto x=(start)-((start)>(end));x!=(end)-((start)>(end));((start)<(end)?x++:x--))
#define all(x) (x).begin(),(x).end()
#define sz(x) (int)(x).size()

#define indexed_set tree<ll,null_type,less<ll>,rb_tree_tag,tree_order_statistics_node_update>
//change less to less_equal for non distinct pbds, but erase will bug

mt19937 rng(chrono::system_clock::now().time_since_epoch().count());

struct node{
	int s,e,m;
	int val=-1;
	node *l,*r;
	
	node (int _s,int _e){
		s=_s,e=_e,m=s+e>>1;
		
		if (s!=e){
			l=new node(s,m);
			r=new node(m+1,e);
		}
	}
	
	void update(int i,int j){
		val=max(val,j);
		
		if (s==e) return;
		else if (i<=m) l->update(i,j);
		else r->update(i,j);
	}
	
	int query(int i,int j){
		if (s==i && e==j) return val;
		else if (j<=m) return l->query(i,j);
		else if (m<i) return r->query(i,j);
		else return max(l->query(i,m),r->query(m+1,j));
	}
} *root=new node(0,600005);

struct node2{
	int s,e,m;
	int val=0;
	node2 *l,*r;
	
	node2 (int _s,int _e){
		s=_s,e=_e,m=s+e>>1;
		
		if (s!=e){
			l=new node2(s,m);
			r=new node2(m+1,e);
		}
	}
	
	void update(int i){
		val++;
		
		if (s==e) return;
		else if (i<=m) l->update(i);
		else r->update(i);
	}
	
	int query(int i,int j){
		if (s==i && e==j) return val;
		else if (j<=m) return l->query(i,j);
		else if (m<i) return r->query(i,j);
		else return l->query(i,m)+r->query(m+1,j);
	}
} *root2=new node2(0,600005);

int n,q;
ii arr[200005];
int brr[200005];

vector<ii> proc;

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin.exceptions(ios::badbit | ios::failbit);
	
	cin>>n>>q;
	rep(x,0,n) cin>>arr[x].fi>>arr[x].se;
	rep(x,0,q) cin>>brr[x];
	
	vector<int> uni;
	rep(x,0,n) uni.push_back(arr[x].fi),uni.push_back(arr[x].se);
	rep(x,0,q) uni.push_back(brr[x]);
	
	sort(all(uni));
	uni.erase(unique(all(uni)),uni.end());
	
	map<int,int> id;
	rep(x,0,sz(uni)) id[uni[x]]=x;
	
	rep(x,0,n) arr[x].fi=id[arr[x].fi],arr[x].se=id[arr[x].se];
	rep(x,0,q) brr[x]=id[brr[x]];
	
	rep(x,0,q){
		root->update(brr[x],x);
	}
	
	rep(x,0,n){
		ii temp=arr[x];
		if (temp.fi>temp.se) swap(temp.fi,temp.se);
		
		int val=-1;
		if (temp.fi!=temp.se) val=root->query(temp.fi,temp.se-1);
		
		proc.push_back(ii(val+1,x));
	}
	
	sort(all(proc));
	
	int idx=q;
	ll ans=0;
	while (!proc.empty()){
		while (idx!=proc.back().fi){
			idx--;
			//cout<<"upd: "<<brr[idx]<<endl;
			root2->update(brr[idx]);
		}
		
		int pos=proc.back().se;
		bool orient;
		if (proc.back().fi==0) orient=false;
		else orient=arr[pos].fi<arr[pos].se;
		
		//cout<<idx<<" "<<orient<<endl;
		//cout<<root2->query(max(arr[pos].fi,arr[pos].se),600005)<<endl;
		
		orient^=((root2->query(max(arr[pos].fi,arr[pos].se),600005))%2==1);
		
		//cout<<idx<<" "<<orient<<endl;
		
		if (!orient) ans+=uni[arr[pos].fi];
		else ans+=uni[arr[pos].se];
		
		proc.pop_back();
	}
	
	cout<<ans<<endl;
}

Compilation message

fortune_telling2.cpp: In constructor 'node::node(int, int)':
fortune_telling2.cpp:34:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   34 |   s=_s,e=_e,m=s+e>>1;
      |               ~^~
fortune_telling2.cpp: In constructor 'node2::node2(int, int)':
fortune_telling2.cpp:64:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   64 |   s=_s,e=_e,m=s+e>>1;
      |               ~^~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 122 ms 113132 KB Output is correct
2 Correct 125 ms 113260 KB Output is correct
3 Correct 128 ms 113408 KB Output is correct
4 Correct 124 ms 113260 KB Output is correct
5 Correct 125 ms 113260 KB Output is correct
6 Correct 127 ms 113260 KB Output is correct
7 Correct 127 ms 113260 KB Output is correct
8 Correct 127 ms 113260 KB Output is correct
9 Correct 127 ms 113260 KB Output is correct
10 Correct 154 ms 113240 KB Output is correct
11 Correct 128 ms 113252 KB Output is correct
12 Correct 124 ms 113260 KB Output is correct
13 Correct 130 ms 113388 KB Output is correct

Subtask #2
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 122 ms 113132 KB Output is correct
2 Correct 125 ms 113260 KB Output is correct
3 Correct 128 ms 113408 KB Output is correct
4 Correct 124 ms 113260 KB Output is correct
5 Correct 125 ms 113260 KB Output is correct
6 Correct 127 ms 113260 KB Output is correct
7 Correct 127 ms 113260 KB Output is correct
8 Correct 127 ms 113260 KB Output is correct
9 Correct 127 ms 113260 KB Output is correct
10 Correct 154 ms 113240 KB Output is correct
11 Correct 128 ms 113252 KB Output is correct
12 Correct 124 ms 113260 KB Output is correct
13 Correct 130 ms 113388 KB Output is correct
14 Correct 152 ms 115436 KB Output is correct
15 Correct 196 ms 117748 KB Output is correct
16 Correct 237 ms 119916 KB Output is correct
17 Correct 303 ms 122284 KB Output is correct
18 Correct 337 ms 122356 KB Output is correct
19 Correct 285 ms 122520 KB Output is correct
20 Correct 300 ms 122316 KB Output is correct
21 Correct 283 ms 122224 KB Output is correct
22 Correct 215 ms 119916 KB Output is correct
23 Correct 199 ms 119024 KB Output is correct
24 Correct 202 ms 118324 KB Output is correct
25 Correct 231 ms 120556 KB Output is correct
26 Correct 220 ms 119860 KB Output is correct
27 Correct 254 ms 120480 KB Output is correct
28 Correct 226 ms 120556 KB Output is correct
29 Correct 261 ms 121328 KB Output is correct

Subtask #3
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 122 ms 113132 KB Output is correct
2 Correct 125 ms 113260 KB Output is correct
3 Correct 128 ms 113408 KB Output is correct
4 Correct 124 ms 113260 KB Output is correct
5 Correct 125 ms 113260 KB Output is correct
6 Correct 127 ms 113260 KB Output is correct
7 Correct 127 ms 113260 KB Output is correct
8 Correct 127 ms 113260 KB Output is correct
9 Correct 127 ms 113260 KB Output is correct
10 Correct 154 ms 113240 KB Output is correct
11 Correct 128 ms 113252 KB Output is correct
12 Correct 124 ms 113260 KB Output is correct
13 Correct 130 ms 113388 KB Output is correct
14 Correct 152 ms 115436 KB Output is correct
15 Correct 196 ms 117748 KB Output is correct
16 Correct 237 ms 119916 KB Output is correct
17 Correct 303 ms 122284 KB Output is correct
18 Correct 337 ms 122356 KB Output is correct
19 Correct 285 ms 122520 KB Output is correct
20 Correct 300 ms 122316 KB Output is correct
21 Correct 283 ms 122224 KB Output is correct
22 Correct 215 ms 119916 KB Output is correct
23 Correct 199 ms 119024 KB Output is correct
24 Correct 202 ms 118324 KB Output is correct
25 Correct 231 ms 120556 KB Output is correct
26 Correct 220 ms 119860 KB Output is correct
27 Correct 254 ms 120480 KB Output is correct
28 Correct 226 ms 120556 KB Output is correct
29 Correct 261 ms 121328 KB Output is correct
30 Correct 494 ms 127860 KB Output is correct
31 Correct 754 ms 134756 KB Output is correct
32 Correct 1075 ms 142948 KB Output is correct
33 Correct 1623 ms 159544 KB Output is correct
34 Correct 449 ms 126056 KB Output is correct
35 Correct 1673 ms 159708 KB Output is correct
36 Correct 1685 ms 159604 KB Output is correct
37 Correct 1622 ms 159580 KB Output is correct
38 Correct 1505 ms 159708 KB Output is correct
39 Correct 1578 ms 159520 KB Output is correct
40 Correct 1377 ms 159324 KB Output is correct
41 Correct 1473 ms 159600 KB Output is correct
42 Correct 1508 ms 159580 KB Output is correct
43 Correct 724 ms 158940 KB Output is correct
44 Correct 707 ms 158988 KB Output is correct
45 Correct 757 ms 158752 KB Output is correct
46 Correct 734 ms 143708 KB Output is correct
47 Correct 602 ms 138716 KB Output is correct
48 Correct 1044 ms 150108 KB Output is correct
49 Correct 980 ms 150236 KB Output is correct