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#735764#6533. Traveling in Cells_xqy_RE 448ms3672kbC++203.7kb2024-11-11 21:35:392024-11-11 21:35:40

Judging History

你现在查看的是最新测评结果

  • [2024-11-11 21:35:40]
  • 评测
  • 测评结果:RE
  • 用时:448ms
  • 内存:3672kb
  • [2024-11-11 21:35:39]
  • 提交

answer

#include <bits/stdc++.h>
using LL = long long;
using namespace std;
constexpr int N = 1E5 + 5 , M = N * 2;

int cnt , rt[N] , ls[(M << 5) + 5] , rs[(M << 5) + 5] , sum[(M << 5) + 5];
void pushup(int u) {
	sum[u] = sum[ls[u]] + sum[rs[u]];
}
void update(int &u,int l,int r,int pos,int v) {
	if (u == 0) u = ++cnt;
	if (l == r) {
		sum[u] += v;
		return;
	}
	int md = (l + r) >> 1;
	if (pos <= md) update(ls[u] , l , md , pos , v);
	else update(rs[u] , md + 1 , r , pos , v);
	pushup(u);
}
int query(int u,int l,int r,int ql,int qr) {
	if (u == 0) return 0;
	if (l == ql && r == qr) {
		return sum[u];
	}
	int md = (l + r) >> 1;
	if (qr <= md) return query(ls[u] , l , md , ql , qr);
	else if (ql > md) return query(rs[u] , md + 1 , r , ql , qr);
	else {
		return query(ls[u] , l , md , ql , md) + query(rs[u] , md + 1 , r , md + 1 , qr);
	}
}
template<typename T>
struct Fenwick{
    int n;
    std::vector<T> tr;

    Fenwick(int n) : n(n), tr(n + 1, 0){}

    int lowbit(int x){
        return x & -x;
    }

    void modify(int x, T c){
        for(int i = x; i <= n; i += lowbit(i)) tr[i] += c;
    }

    void modify(int l, int r, T c){
        modify(l, c);
        if (r + 1 <= n) modify(r + 1, -c);
    }

    T query(int x){
        T res = T();
        for(int i = x; i; i -= lowbit(i)) res += tr[i];
        return res;
    }

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

    int find_first(T sum){
        int ans = 0; T val = 0;
        for(int i = std::__lg(n); i >= 0; i--){
            if ((ans | (1 << i)) <= n && val + tr[ans | (1 << i)] < sum){
                ans |= 1 << i;
                val += tr[ans];
            }
        }
        return ans + 1;
    }

    int find_last(T sum){
        int ans = 0; T val = 0;
        for(int i = std::__lg(n); i >= 0; i--){
            if ((ans | (1 << i)) <= n && val + tr[ans | (1 << i)] <= sum){
                ans |= 1 << i;
                val += tr[ans];
            }
        }
        return ans;
    }

};
using BIT = Fenwick<LL>;

void clear() {
	for (int i = 1 ; i <= cnt ; ++i) {
		rt[i] = ls[i] = rs[i] = sum[i] = 0;
	}
	cnt = 0;
}
void solve() {

	clear();

	int n,q;
	cin >> n >> q;

	vector<int> c(n + 1) , v(n + 1);
	for (int i = 1 ; i <= n ; ++i) {
		cin >> c[i];
	}
	for (int i = 1 ; i <= n ; ++i) {
		cin >> v[i];
	}
	
	BIT tr(n);
	for (int i = 1 ; i <= n ; ++i) {
		tr.modify(i , v[i]);
	}
	for (int i = 1 ; i <= n ; ++i) {
		update(rt[c[i]] , 1 , n , i , 1);
	}
	
	for (int i = 1 ; i <= q ; ++i) {
		int opt;
		cin >> opt;
		if (opt == 1) {
			int p,x;
			cin >> p >> x;
			if (c[p] == x) continue;
			update(rt[c[p]] , 1 , n , p , -1);
			c[p] = x;
			update(rt[c[p]] , 1 , n , p , 1);
		} else if (opt == 2) {
			int p,x;
			cin >> p >> x;
			if (v[p] == x) continue;
			tr.modify(p , -v[p]);
			v[p] = x;
			tr.modify(p , v[p]);
		} else {
			
			int x,k;
			cin >> x >> k;
			vector<int> s(k);
			for (int j = 0 ; j < k ; ++j) {
				cin >> s[j];
			}
			auto check = [&] (int l,int r) {
				int sum = 0;
				for (int j = 0 ; j < k ; ++j) {
					sum += query(rt[s[j]] , 1 , n , l , r);
				}
				// assert(sum <= r - l + 1);
				return (sum == r - l + 1);
			};

			int L , R , l = 1 , r = x;
			while (l < r) {
				int md = (l + r) >> 1;
				if (check(md , x)) r = md;
				else l = md + 1; 
			}
			L = r;
			
			l = x , r = n;
			while (l < r) {
				int md = (l + r + 1) >> 1;
				if (check(x , md)) l = md;
				else r = md - 1;
			}
			R = l;

			cout << tr.query(R) - tr.query(L - 1) << "\n";
		}
	}

}

int main() {

	ios::sync_with_stdio(false);
	cin.tie(nullptr);

	int t = 1;
	cin >> t;
	while (t--) {
		solve();
	}

	return 0;
}

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 3628kb

input:

2
5 10
1 2 3 1 2
1 10 100 1000 10000
3 3 1 3
3 3 2 2 3
2 5 20000
2 3 200
3 3 2 1 3
3 3 3 1 2 3
1 3 4
2 1 100000
1 2 2
3 1 2 1 2
4 1
1 2 3 4
1000000 1000000 1000000 1000000
3 4 4 1 2 3 4

output:

100
110
1200
21211
100010
4000000

result:

ok 6 numbers

Test #2:

score: 0
Accepted
time: 196ms
memory: 3672kb

input:

20000
15 15
1 1 3 3 2 3 3 3 3 3 2 3 2 3 3
634593973 158136379 707704004 998369647 831633445 263092797 937841412 451774682 552617416 483763379 50360475 794662797 74247465 537217773 901809831
3 6 4 1 3 5 10
3 5 7 1 2 3 4 5 9 10
3 4 3 3 8 9
2 13 608033129
3 15 2 3 5
1 9 3
3 8 4 1 3 7 10
2 6 727472865
3...

output:

2689089686
8377825475
1706073651
1439027604
2689089686
792730352
8904867081
8904867081
8270273108
831633445
692051585
2782432626
697783016
883944422
184057757
287523250
184057757
696388752
184057757
1675459344
2667693025
2614711258
4006992373
1767091974
5348541057
5348541057
390631780
2290216252
942...

result:

ok 200062 numbers

Test #3:

score: 0
Accepted
time: 448ms
memory: 3620kb

input:

2000
150 150
8 3 8 8 8 6 8 4 2 7 6 8 8 5 8 7 7 8 5 6 8 8 6 8 8 8 8 7 8 6 6 8 8 8 6 2 3 4 8 8 7 8 5 8 2 6 8 7 8 8 6 8 6 8 3 8 8 8 8 4 7 8 7 3 7 6 7 5 5 8 6 8 8 6 3 8 6 7 6 8 8 7 4 8 6 7 8 7 7 7 7 8 8 8 8 2 5 2 8 8 6 7 6 3 8 8 7 8 8 8 6 6 8 6 6 7 5 8 8 8 7 8 7 7 6 8 8 8 8 8 8 6 5 7 5 5 8 7 8 7 7 7 6 5...

output:

4449391171
3290849667
852793841
5178673994
995994209
11431868919
4327723427
5071541023
3032743466
962345334
2997656427
4534278452
3851900075
3611231417
5071541023
1477584218
1299005818
1299005818
2145605244
854143763
886347565
2081234124
2333808475
2455955801
4179722063
2328504333
1473735464
4107685...

result:

ok 199987 numbers

Test #4:

score: -100
Runtime Error

input:

10
30000 30000
3 4 2 4 4 4 4 3 4 3 4 3 4 3 4 4 2 4 4 4 4 4 3 3 3 4 3 4 3 4 3 3 4 2 4 3 3 3 3 4 3 4 4 4 4 2 3 3 4 2 3 4 4 4 4 1 4 4 4 4 4 4 4 4 3 3 3 4 4 4 4 4 2 3 4 4 4 4 3 4 4 3 3 3 4 4 3 4 4 2 3 4 4 4 4 3 2 4 3 4 3 2 4 4 3 4 2 2 4 4 4 4 2 4 3 2 4 4 3 4 4 4 2 4 4 3 2 3 2 3 3 3 4 2 4 3 4 1 4 3 4 4 4...

output:

6959437173
934970676
72461245502
8365928740
8384151048
984567228
12482909122
1904927816
15134139942
3759040688
92670874909
332468911
5936663371
3562978848
1300592004
10314009201
5581540905
131246926443
15087184135864
4077066271
1124704817
1520626740
4388174158
744377942
2770411457
6231852240
1508724...

result: