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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#207913#7108. Couleurammardab3an#AC ✓1122ms67476kbC++204.9kb2023-10-08 22:57:512023-10-08 22:57:51

Judging History

你现在查看的是最新测评结果

  • [2023-10-08 22:57:51]
  • 评测
  • 测评结果:AC
  • 用时:1122ms
  • 内存:67476kb
  • [2023-10-08 22:57:51]
  • 提交

answer


// By AmmarDab3an 

#include "bits/stdc++.h"

using namespace std;

#define int int64_t
#define ll  int64_t

// typedef unsigned int        uint;
// typedef long long int       ll;
// typedef unsigned long long  ull;
typedef pair<int, int>    pii;
typedef pair<ll, ll>      pll;
typedef pair<int, pii>    iii;
typedef pair<ll, pll>     lll;
typedef vector<int>       vi;
typedef vector<ll>        vl;
typedef vector<pii>       vpii;
typedef vector<pll>       vpll;

#define endl '\n'
#define fastIO ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define freopenI freopen("input.txt", "r", stdin);
#define freopenO freopen("output.txt", "w", stdout);

const int INF = 0x3f3f3f3f;
const ll INFLL = 0x3f3f3f3f3f3f3f3f;
const int MOD = 1e9 + 7;
const double EPS = 1e-9;
const double  PI = acos(-1);

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
 
int rand(int x, int y) {
	return uniform_int_distribution<int>(x, y)(rng);
}

int mul(int a, int b){
	int ret = (1ll * (a%MOD) * (b%MOD)) % MOD;
	return (ret+MOD)%MOD;
}
 
int add(int a, int b){
	int ret = (1ll * (a%MOD) + (b%MOD)) % MOD;
	return (ret+MOD)%MOD;
}
 
int pow_exp(int n, int p){
	if(!p) return 1;
	if(p&1) return mul(n, pow_exp(n, p-1));
	int tmp = pow_exp(n, p/2);
	return mul(tmp, tmp);
}

int inv(int x){
	return pow_exp(x, MOD-2);
}
 
const int  MAX = 2e5 + 10;
const int NMAX = 2e5 + 10;
const int MMAX = 2e5 + 10;
const int LOG_MAX = ceil(log2(double(NMAX)));
const int BLOCK = ceil(sqrt(double(NMAX)));

struct FenwickTree {
    
    int n;
    vector<int> bit;  // binary indexed tree

	FenwickTree(){}
	
    FenwickTree(int n) {
        this->n = n;
        bit.assign(n, 0);
    }

    FenwickTree(vector<int> a) : FenwickTree(a.size()) {
        for (size_t i = 0; i < a.size(); i++)
            add(i, a[i]);
    }

    int sum(int r) {
        int ret = 0;
        for (; r >= 0; r = (r & (r + 1)) - 1)
            ret += bit[r];
        return ret;
    }

    int sum(int l, int r) {
        return sum(r) - sum(l - 1);
    }

    void add(int idx, int delta) {
        for (; idx < n; idx = idx | (idx + 1))
            bit[idx] += delta;
    }
};

deque<int> compress(const vi &vec){
	
	vi tmp = vec;
	sort(tmp.begin(), tmp.end());
	tmp.erase(unique(tmp.begin(), tmp.end()), tmp.end());
	
	deque<int> ret(vec.begin(), vec.end());
	for(auto &e : ret){
		e = lower_bound(tmp.begin(), tmp.end(), e) - tmp.begin();
	}	
	
	return ret;
}

int32_t main(){
    
    fastIO;
    
#ifdef LOCAL
    freopenI;
    freopenO;
#endif

    // freopen("name.in", "r", stdin);
    
	// init();
	
    int t; cin >> t; while(t--){

		int n;
		cin >> n;
		
		vi vec(n);
		for(auto &i : vec) cin >> i;
		
		vi per(n);
		for(auto &i : per) cin >> i;
		
		struct s_data{
			int frq_cnt = 0;
			FenwickTree st;
			deque<int> elements;
		};
		
		vector<s_data> data;
		set<pair<pii, int>> st;
		multiset<int> mx;
		
		auto calc = [&](int l, int r){
			
			if(l > r){
				return;
			}
			
			s_data tmp;
			int sz = r-l+1;
			tmp.st = FenwickTree(sz);
			tmp.elements = compress(vi(vec.begin()+l, vec.begin()+r+1));
			
			for(int i = sz-1; i >= 0; i--){
				tmp.frq_cnt += tmp.st.sum(0, tmp.elements[i]-1);
				tmp.st.add(tmp.elements[i], 1);
			}
			
			mx.insert(tmp.frq_cnt);
			st.insert({{l, r}, data.size()});
			data.emplace_back(tmp);
		};
		
		calc(0, n-1);
		
		for(auto p : per){
			
			cout << (*mx.rbegin()) << ' ';
			// cout << ' ' << (*mx.rbegin()) << endl;
			
			// for(auto [lr, i] : st){
				// auto [l, r] = lr;
				// cout << l << ' ' << r << ' ' << data[i].frq_cnt << endl;
			// }
			// cout << flush;
			
			int i = (p ^ (*mx.rbegin())) - 1;
			
			// cout << i << endl << flush;
			
			auto it = st.upper_bound({{i, INFLL}, INFLL});
			assert(it != st.begin());
			it--;
			
			auto [l, r] = it->first;
			int d_idx = it->second;
			
			st.erase(it);
			
			// pii st = {l, i-1};
			// pii nd = {i+1, r};
			
			int sz = r-l+1;
			int sz_st = (i-1)-l+1;
			int sz_nd = r-(i+1)+1;
			
			if(sz_st <= sz_nd){
				
				auto &d = data[d_idx];
				mx.erase(mx.find(d.frq_cnt));
				
				while(sz > sz_nd){
					sz--;
					d.frq_cnt -= d.st.sum(0, d.elements.front()-1);
					d.st.add(d.elements.front(), -1);
					d.elements.pop_front();
				}
				
				if(i+1 <= r){
					mx.insert(d.frq_cnt);
					st.insert({{i+1, r}, d_idx});
				}
				
				calc(l, i-1);
			}
			else{
				
				auto &d = data[d_idx];
				mx.erase(mx.find(d.frq_cnt));
				
				while(sz > sz_st){
					sz--;
					d.frq_cnt -= d.st.sum(d.elements.back()+1, d.st.n-1);
					d.st.add(d.elements.back(), -1);
					d.elements.pop_back();
				}
				
				if(l <= i-1){
					mx.insert(d.frq_cnt);
					st.insert({{l, i-1}, d_idx});
				}
				
				calc(i+1, r);
			}
		}
		
		cout << endl;
    }	
}

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: 0ms
memory: 3740kb

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: 1122ms
memory: 67476kb

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