oj.uz

Submission #102585

# Submission time Handle Problem Language Result Execution time Memory
102585 2019-03-26T03:17:24 Z DrumpfTheGodEmperor Bubble Sort 2 (JOI18_bubblesort2) C++14
38 / 100
 35 ms 2044 KB 
#include <bits/stdc++.h>
#include "bubblesort2.h"
#define bp __builtin_popcountll
#define pb push_back
#define in(s) freopen(s, "r", stdin);
#define inout(s, end1, end2) freopen((string(s) + "." + end1).c_str(), "r", stdin),\
		freopen((string(s) + "." + end2).c_str(), "w", stdout);
#define fi first
#define se second
#define bw(i, r, l) for (int i = r - 1; i >= l; i--)
#define fw(i, l, r) for (int i = l; i < r; i++)
#define fa(i, x) for (auto i: x)
using namespace std;
const int mod = 1e9 + 7, inf = 1061109567;
const long long infll = 4557430888798830399;
const int N = 5e5 + 5;
int n, q;
struct Query {
	int val, pos, id;
	bool operator<(const Query &rhs) const {
		return val == rhs.val ? id < rhs.id : val < rhs.val;
	}
};
vector<Query> vec;
class SegTree {
private:
	int mx[N << 3], cnt[N << 3], lazy[N << 3];
	//cnt saves if a query is "active"
	void build(int l, int r, int x) {
		if (l == r) {
			cnt[x] = 0;
			mx[x] = -inf;
			lazy[x] = 0;
			return;
		}
		int m = (l + r) >> 1;
		build(l, m, x << 1), build(m + 1, r, x << 1 | 1);
		cnt[x] = 0, mx[x] = -inf, lazy[x] = 0;
	}
	void push(int l, int r, int x) {
		mx[x] += lazy[x];
		if (l != r) {
			lazy[x << 1] += lazy[x];
			lazy[x << 1 | 1] += lazy[x];
		}
		lazy[x] = 0;
	}
	void add(int l, int r, int s, int e, int x, int val) {
		push(l, r, x);
		if (l > e || r < s) return;
		if (s <= l && r <= e) {
			lazy[x] += val;
			push(l, r, x);
			return;
		}
		int m = (l + r) >> 1;
		add(l, m, s, e, x << 1, val), add(m + 1, r, s, e, x << 1 | 1, val);
		mx[x] = max(mx[x << 1], mx[x << 1 | 1]);
	}
	void set(int l, int r, int pos, int mxval, int cntval, int x) {
		push(l, r, x);
		if (l > pos || r < pos) return;
		if (l == r) {
			mx[x] = mxval;
			cnt[x] = cntval;
			return;
		}
		int m = (l + r) >> 1;
		set(l, m, pos, mxval, cntval, x << 1), set(m + 1, r, pos, mxval, cntval, x << 1 | 1);
		cnt[x] = cnt[x << 1] + cnt[x << 1 | 1];
		mx[x] = max(mx[x << 1], mx[x << 1 | 1]);
	}
	int get(int l, int r, int s, int e, int x) {
		push(l, r, x);
		if (l > e || r < s) return 0;
		if (s <= l && r <= e) return cnt[x];
		int m = (l + r) >> 1;
		return get(l, m, s, e, x << 1) + get(m + 1, r, s, e, x << 1 | 1);
	}
public:
	int n;
	void init(int _n) { n = _n; build(0, n - 1, 1); }
	void add(int l, int r, int val) { add(0, n - 1, l, r, 1, val); }
	int get(int l, int r) { return get(0, n - 1, l, r, 1); }
	void set(int pos, int mxval, int cntval) { set(0, n - 1, pos, mxval, cntval, 1); }
	int getans() { return mx[1]; }
} st;
int curid[N], realpos[N];
vector<int> countScans(vector<int> a, vector<int> x, vector<int> v) {
	n = a.size(), q = x.size();
	fw (i, 0, n) vec.pb({a[i], i, i});
	fw (i, 0, q) vec.pb({v[i], x[i], i + n});
	//Save segment tree of queries and the answer for the modified index within the query
	sort(vec.begin(), vec.end());
	st.init(n + q);
	fw (i, 0, vec.size()) {
		int pos = vec[i].pos, id = vec[i].id;
		if (id >= n) realpos[id - n] = i;
		else {
			int tmp = pos - st.get(0, i);
			curid[pos] = i;
			st.set(i, tmp, 1);
			//Don't need to lazy since queries are processed in order here
		}
	}
	vector<int> res;
	fw (i, 0, q) {
		st.add(curid[x[i]], n + q - 1, 1);
		st.set(curid[x[i]], -inf, 0);
		curid[x[i]] = realpos[i];
		int tmp = x[i] - st.get(0, realpos[i]);
		st.add(curid[x[i]], n + q - 1, -1);
		st.set(curid[x[i]], tmp, 1);
		res.pb(st.getans());
	}
	return res;
}

Compilation message

bubblesort2.cpp: In function 'std::vector<int> countScans(std::vector<int>, std::vector<int>, std::vector<int>)':
bubblesort2.cpp:11:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 #define fw(i, l, r) for (int i = l; i < r; i++)
bubblesort2.cpp:96:6:
  fw (i, 0, vec.size()) {
      ~~~~~~~~~~~~~~~~                  
bubblesort2.cpp:96:2: note: in expansion of macro 'fw'
  fw (i, 0, vec.size()) {
  ^~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 512 KB Output is correct
2 Correct 4 ms 512 KB Output is correct
3 Correct 8 ms 640 KB Output is correct
4 Correct 8 ms 640 KB Output is correct
5 Correct 6 ms 640 KB Output is correct
6 Correct 7 ms 640 KB Output is correct
7 Correct 7 ms 640 KB Output is correct
8 Correct 8 ms 640 KB Output is correct
9 Correct 7 ms 640 KB Output is correct
10 Correct 9 ms 640 KB Output is correct
11 Correct 7 ms 640 KB Output is correct
12 Correct 10 ms 640 KB Output is correct
13 Correct 8 ms 656 KB Output is correct
14 Correct 8 ms 640 KB Output is correct
15 Correct 8 ms 768 KB Output is correct
16 Correct 5 ms 640 KB Output is correct
17 Correct 8 ms 640 KB Output is correct
18 Correct 10 ms 768 KB Output is correct

Subtask #2
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 512 KB Output is correct
2 Correct 4 ms 512 KB Output is correct
3 Correct 8 ms 640 KB Output is correct
4 Correct 8 ms 640 KB Output is correct
5 Correct 6 ms 640 KB Output is correct
6 Correct 7 ms 640 KB Output is correct
7 Correct 7 ms 640 KB Output is correct
8 Correct 8 ms 640 KB Output is correct
9 Correct 7 ms 640 KB Output is correct
10 Correct 9 ms 640 KB Output is correct
11 Correct 7 ms 640 KB Output is correct
12 Correct 10 ms 640 KB Output is correct
13 Correct 8 ms 656 KB Output is correct
14 Correct 8 ms 640 KB Output is correct
15 Correct 8 ms 768 KB Output is correct
16 Correct 5 ms 640 KB Output is correct
17 Correct 8 ms 640 KB Output is correct
18 Correct 10 ms 768 KB Output is correct
19 Correct 21 ms 1456 KB Output is correct
20 Correct 33 ms 1560 KB Output is correct
21 Correct 25 ms 1472 KB Output is correct
22 Correct 22 ms 1600 KB Output is correct
23 Correct 23 ms 1472 KB Output is correct
24 Correct 22 ms 1472 KB Output is correct
25 Correct 20 ms 1600 KB Output is correct
26 Correct 30 ms 1464 KB Output is correct
27 Correct 21 ms 1600 KB Output is correct
28 Correct 25 ms 1600 KB Output is correct

Subtask #3
0 / 22.0

# Verdict Execution time Memory Grader output
1 Incorrect 35 ms 2044 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 512 KB Output is correct
2 Correct 4 ms 512 KB Output is correct
3 Correct 8 ms 640 KB Output is correct
4 Correct 8 ms 640 KB Output is correct
5 Correct 6 ms 640 KB Output is correct
6 Correct 7 ms 640 KB Output is correct
7 Correct 7 ms 640 KB Output is correct
8 Correct 8 ms 640 KB Output is correct
9 Correct 7 ms 640 KB Output is correct
10 Correct 9 ms 640 KB Output is correct
11 Correct 7 ms 640 KB Output is correct
12 Correct 10 ms 640 KB Output is correct
13 Correct 8 ms 656 KB Output is correct
14 Correct 8 ms 640 KB Output is correct
15 Correct 8 ms 768 KB Output is correct
16 Correct 5 ms 640 KB Output is correct
17 Correct 8 ms 640 KB Output is correct
18 Correct 10 ms 768 KB Output is correct
19 Correct 21 ms 1456 KB Output is correct
20 Correct 33 ms 1560 KB Output is correct
21 Correct 25 ms 1472 KB Output is correct
22 Correct 22 ms 1600 KB Output is correct
23 Correct 23 ms 1472 KB Output is correct
24 Correct 22 ms 1472 KB Output is correct
25 Correct 20 ms 1600 KB Output is correct
26 Correct 30 ms 1464 KB Output is correct
27 Correct 21 ms 1600 KB Output is correct
28 Correct 25 ms 1600 KB Output is correct
29 Incorrect 35 ms 2044 KB Output isn't correct
30 Halted 0 ms 0 KB -