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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#522927#7108. Couleurmhw#ML 0ms0kbC++205.1kb2024-08-17 16:52:312024-08-17 16:52:33

Judging History

你现在查看的是最新测评结果

  • [2024-08-17 16:52:33]
  • 评测
  • 测评结果:ML
  • 用时:0ms
  • 内存:0kb
  • [2024-08-17 16:52:31]
  • 提交

answer

#include<bits/stdc++.h>
#define ll long long
#define pii make_pair
#define rep(i,a,b) for(int i=a;i<=b;++i)
#define per(i,a,b) for(int i=b;i>=a;--i)
using namespace std;
inline ll read() {
	ll x=0,f=1;
	char c=getchar();
	while (c<'0' || c>'9') {
		if (c=='-')  f=-1;
		c=getchar();
	}
	while (c>='0' && c<='9') {
		x=x*10+c-'0';
		c=getchar();
	}
	return x*f;
}
inline void print(ll x) {
	if(x < 0) putchar('-'), x = -x;
	if(x > 9) print(x / 10);
	putchar(x % 10 + '0');
	return ;
}
inline void pprint(ll x) {
	print(x);
	puts("");
}

const int N = 2e5 + 7;
int n;
int a[N];
struct seg {
	int v,ls,rs;
} t[N<<8];
int rt[N<<2],cnt;
void pushup(int o) {
	t[o].v=t[t[o].ls].v+t[t[o].rs].v;
}
void change(int lsto,int &o,int l,int r,int q,int v) {
	if(!o) o=++cnt;
	if(l==r) {
		t[o].v+=v;
		return ;
	}
	int mid=l+r>>1;
	if(q<=mid) { //��������������
		t[o].rs=t[lsto].rs;//������ֱ��copy
		t[o].ls=++cnt;
		t[t[o].ls]=t[t[lsto].ls];//������copy�ṹ�壬Ȼ�����
		change(t[lsto].ls,t[o].ls,l,mid,q,v);
	} else {
		t[o].ls=t[lsto].ls;
		t[o].rs=++cnt;
		t[t[o].rs]=t[t[lsto].rs];
		change(t[lsto].rs,t[o].rs,mid+1,r,q,v);
	}
	pushup(o);
}

int query_rnk(int o1, int o2, int l, int r, int ql, int qr) {
	if(ql <= l && r <= qr) {
		return t[o2].v - t[o1].v;
	}
	int mid = l + r >> 1, ans = 0;
	if(ql <= mid) ans += query_rnk(t[o1].ls, t[o2].ls, l, mid, ql, qr);
	if(qr > mid) ans += query_rnk(t[o1].rs, t[o2].rs, mid + 1, r, ql, qr);
	return ans;
}
int get_rnk(int x, int y, ll q) {
	if(q == 1)
		return 1;
	return query_rnk(rt[x-1], rt[y], 1, n, 1, q - 1) + 1;
}

ll c[N];
void add(int x, ll y){
	while(x <= n){
		c[x] += y;
		x += x & -x;
	}
}
ll ask(int x){
	ll res = 0;
	while(x > 0){
		res += c[x];
		x -= x & -x;
	}
	return res;
}

ll calc(int x, int y){
	ll ans = 0;
	for(int i = y; i >= x; --i){
		ans += ask(a[i] - 1);
		add(a[i], 1);
	}
	for(int i = y; i >= x; --i)
		add(a[i], -1);
	return ans;
}

ll get_min(int x, int y, ll q){
	return get_rnk(x, y, q) - 1;
}
ll get_max(int x, int y, ll q){
	return (y - x + 1) - (get_rnk(x, y, q + 1) - 1);
}
void slv() {

    memset(rt,0,sizeof rt);
    memset(t,0,sizeof t);
    // memset(c,0,sizeof c);
    // memset(a,0,sizeof a);
    cnt=0;

	cin>>n;
	for(int i = 1; i <= n; i++) {
		cin>>a[i];
		change(rt[i-1], rt[i], 1, n, a[i], 1);
	}

	set<int> st;
	st.insert(0);
	st.insert(n + 1);
	map<pair<int, int>, int> q;

    set<int>num;
    unordered_map<int,int>mp;

    int t1=calc(1,n);
    q[{1,n}]=t1;
    num.insert(t1);
    mp[t1]++;
    cout << t1 << ' ';
	ll lst = t1;
	for(int i = 1; i < n; ++i) {
		int pos , out;
        cin>>pos;
		pos ^= lst;

		int l = *(--st.upper_bound(pos)) + 1;
		int r = *(st.upper_bound(pos)) - 1;

        // cout << pos << " " << l << " " << r << endl;

		if(abs(l - pos) > abs(r - pos)) { //右边小暴力右边
            ll ans1 = 0;
            if(pos + 1 <= r) ans1 = calc(pos + 1, r);

			ll tot_lft_max = get_max(l, pos - 1, a[pos]);
			ll tot_rgt_min = 0;
            if(pos + 1 <= r) tot_rgt_min = get_min(pos + 1, r, a[pos]);

			ll _sum = 0;
			for(int j = pos + 1; j <= r; ++j) {
				_sum += get_max(l, pos - 1, a[j]);
			}
			ll lst_ans = q[pii(l, r)];

            // cout << "lst_ans " << lst_ans << endl;
            // cout << "tot_lft_max " << tot_lft_max << endl;
            // cout << "tot_rgt_min " << tot_rgt_min << endl;
            // cout << "_sum " << _sum << endl;
			ll ans2 = lst_ans - tot_lft_max - tot_rgt_min - _sum - ans1;
            // cout << ans1 << ' ' << ans2 <<endl;
			
			q[pii(l, pos - 1)] = ans2;
			q[pii(pos + 1, r)] = ans1;

            mp[lst_ans]--;
            if(mp[lst_ans]==0) num.erase(lst_ans);
            mp[ans1]++; mp[ans2]++;
            num.insert(ans1),num.insert(ans2);
            out = *num.rbegin(); 
			
		} else { //左边小暴力左边
			ll ans1 = 0;
            if(l <= pos - 1) ans1 = calc(l, pos - 1);

            ll tot_lft_max = 0;
            if(l <= pos - 1) tot_lft_max = get_max(l, pos - 1, a[pos]);

			ll tot_rgt_min = get_min(pos + 1, r, a[pos]);
			ll _sum = 0;
            for(int j = l; j <= pos - 1; ++j){
				_sum += get_min(pos + 1, r, a[j]);
			}
            ll lst_ans = q[pii(l, r)];
			ll ans2 = lst_ans - tot_lft_max - tot_rgt_min - _sum - ans1;

            q[pii(l, pos - 1)] = ans1;
			q[pii(pos + 1, r)] = ans2;

            mp[lst_ans]--;
            if(mp[lst_ans]==0) num.erase(lst_ans);
            mp[ans1]++; mp[ans2]++;
            num.insert(ans1),num.insert(ans2);
            out = *num.rbegin(); 
		}

        cout << out << ' ';
        lst = out;
        st.insert(pos);
	}
    int x;cin>>x;
    cout << '\n';
}

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0),cout.tie(0);
	int T; cin>>T;
	while(T--) {
		slv();
	}

	return 0;
}
/*

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
*/

詳細信息

Test #1:

score: 0
Memory Limit Exceeded

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: