oj.uz

답안 #531735

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
531735 2022-03-01T10:57:37 Z errorgorn Izbori (COCI22_izbori) C++17
110 / 110
 36 ms 9032 KB 
//雪花飄飄北風嘯嘯
//天地一片蒼茫
 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ii pair<int,int>
#define iii pair<ii,ll>
#define fi first
#define se second
#define endl '\n'
#define debug(x) cout << #x << ": " << x << endl
 
#define pub push_back
#define pob pop_back
#define puf push_front
#define pof pop_front
#define lb lower_bound
#define ub upper_bound
 
#define rep(x,start,end) for(int x=start;x!=end;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());

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

int cnt[1<<15];
int af=(1<<15)-1;

int delta[200005];

ll solve(vector<int> &v){
	if (sz(v)==1) return 1;
	
	v.pub(n+1);
	
	vector<ii> ranges={ {0,-(v[0]-1)} };
	rep(x,0,sz(v)-1){
		ranges.pub({ranges.back().se+1,ranges.back().se-(v[x+1]-v[x])+2});
	}
	
	vector<int> imp={-(int)1e9};
	rep(x,0,sz(ranges)) imp.pub(ranges[x].fi),imp.pub(ranges[x].fi-1);
	sort(all(imp));
	imp.erase(unique(all(imp)),imp.end());
	
	rep(x,1,sz(imp)) delta[x]=0;
	
	//for (auto it:ranges) cout<<it.fi<<"_"<<it.se<<" "; cout<<endl;
	
	int pos=find(all(imp),ranges[0].fi)-imp.begin()-1;
	int curr=0;
	
	ll res=0;
	for (auto it:ranges){
		curr+=delta[pos];
		pos++;
		while (true){
			res+=curr;
			delta[pos]++;
			if (imp[pos-1]<it.se) break;
			pos--;
			curr-=delta[pos];
		}
	}
	//cout<<res<<endl;
	return res;
}

void read(int &x){
	x=0;
	char ch=getchar_unlocked();
	while (ch&16) x=x*10+(ch&15),ch=getchar_unlocked();
}

signed main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin.exceptions(ios::badbit | ios::failbit);
	
	read(n);
	rep(x,0,n) read(arr[x].fi),arr[x].se=x+1;
	
	rep(x,0,n) cnt[arr[x].fi&af]++;
	rep(x,1,32768) cnt[x]+=cnt[x-1];
	for (int x=n-1;x>=0;x--) brr[--cnt[arr[x].fi&af]]=arr[x];
	
	memset(cnt,0,sizeof(cnt));
	rep(x,0,n) cnt[(brr[x].fi>>15)&af]++;
	rep(x,1,32768) cnt[x]+=cnt[x-1];
	for (int x=n-1;x>=0;x--) arr[--cnt[(brr[x].fi>>15)&af]]=brr[x];
	
	ll ans=0;
	int curr=0;
	vector<int> pos;
	
	while (curr<n){
		int nxt=curr+1;
		while (arr[curr].fi==arr[nxt].fi) nxt++;
		pos.clear();
		rep(x,curr,nxt) pos.pub(arr[x].se);
		ans+=solve(pos);
		
		curr=nxt;
	}
	
	cout<<ans<<endl;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 460 KB Output is correct
2 Correct 1 ms 460 KB Output is correct
3 Correct 1 ms 460 KB Output is correct
4 Correct 1 ms 460 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 1 ms 460 KB Output is correct

Subtask #2
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 460 KB Output is correct
2 Correct 1 ms 460 KB Output is correct
3 Correct 1 ms 460 KB Output is correct
4 Correct 1 ms 460 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 1 ms 460 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 1 ms 460 KB Output is correct
9 Correct 1 ms 460 KB Output is correct
10 Correct 1 ms 460 KB Output is correct
11 Correct 1 ms 460 KB Output is correct
12 Correct 1 ms 460 KB Output is correct
13 Correct 1 ms 460 KB Output is correct
14 Correct 1 ms 460 KB Output is correct
15 Correct 1 ms 460 KB Output is correct
16 Correct 1 ms 460 KB Output is correct
17 Correct 1 ms 460 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 21 ms 4872 KB Output is correct
2 Correct 23 ms 5880 KB Output is correct
3 Correct 15 ms 3508 KB Output is correct
4 Correct 27 ms 6072 KB Output is correct
5 Correct 32 ms 6288 KB Output is correct
6 Correct 26 ms 6572 KB Output is correct
7 Correct 26 ms 6572 KB Output is correct
8 Correct 36 ms 6512 KB Output is correct
9 Correct 27 ms 6588 KB Output is correct
10 Correct 26 ms 6540 KB Output is correct
11 Correct 22 ms 9032 KB Output is correct

Subtask #4
70.0 / 70.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 460 KB Output is correct
2 Correct 1 ms 460 KB Output is correct
3 Correct 1 ms 460 KB Output is correct
4 Correct 1 ms 460 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 1 ms 460 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 1 ms 460 KB Output is correct
9 Correct 1 ms 460 KB Output is correct
10 Correct 1 ms 460 KB Output is correct
11 Correct 1 ms 460 KB Output is correct
12 Correct 1 ms 460 KB Output is correct
13 Correct 1 ms 460 KB Output is correct
14 Correct 1 ms 460 KB Output is correct
15 Correct 1 ms 460 KB Output is correct
16 Correct 1 ms 460 KB Output is correct
17 Correct 1 ms 460 KB Output is correct
18 Correct 21 ms 4872 KB Output is correct
19 Correct 23 ms 5880 KB Output is correct
20 Correct 15 ms 3508 KB Output is correct
21 Correct 27 ms 6072 KB Output is correct
22 Correct 32 ms 6288 KB Output is correct
23 Correct 26 ms 6572 KB Output is correct
24 Correct 26 ms 6572 KB Output is correct
25 Correct 36 ms 6512 KB Output is correct
26 Correct 27 ms 6588 KB Output is correct
27 Correct 26 ms 6540 KB Output is correct
28 Correct 22 ms 9032 KB Output is correct
29 Correct 29 ms 8948 KB Output is correct
30 Correct 5 ms 972 KB Output is correct
31 Correct 9 ms 1612 KB Output is correct
32 Correct 26 ms 3404 KB Output is correct
33 Correct 8 ms 1680 KB Output is correct
34 Correct 9 ms 1740 KB Output is correct
35 Correct 5 ms 1332 KB Output is correct
36 Correct 4 ms 972 KB Output is correct
37 Correct 4 ms 1100 KB Output is correct
38 Correct 24 ms 5016 KB Output is correct
39 Correct 25 ms 5100 KB Output is correct
40 Correct 27 ms 5088 KB Output is correct
41 Correct 33 ms 5112 KB Output is correct
42 Correct 29 ms 5204 KB Output is correct
43 Correct 28 ms 4344 KB Output is correct
44 Correct 26 ms 4320 KB Output is correct
45 Correct 25 ms 4320 KB Output is correct
46 Correct 26 ms 4328 KB Output is correct
47 Correct 26 ms 4316 KB Output is correct
48 Correct 18 ms 3616 KB Output is correct
49 Correct 18 ms 3532 KB Output is correct
50 Correct 18 ms 3684 KB Output is correct
51 Correct 18 ms 3684 KB Output is correct
52 Correct 17 ms 3600 KB Output is correct
53 Correct 17 ms 3532 KB Output is correct
54 Correct 28 ms 3604 KB Output is correct