oj.uz

Submission #103988

# Submission time Handle Problem Language Result Execution time Memory
103988 2019-04-03T14:05:37 Z igba Fortune Telling 2 (JOI14_fortune_telling2) C++17
35 / 100
 3000 ms 203896 KB 
#include <bits/stdc++.h>

using namespace std;
const int MAXN = 2 * 100100, MAXK = 2 * 100100, MAXA = 1e9 + 1e4;
int n, k, a[MAXN], b[MAXN], t[MAXK];
long long ans = 0;

struct no
{
	int cnt;
	no *l, *r;
	no(int cnt = 0) : cnt(cnt), l(nullptr), r(nullptr)
	{}
};
inline int getcnt(no *n) { return (n ? n->cnt : 0); }

no* upd(no* n, int pos, int val = 1, int beg = 1, int end = MAXA)
{
	if(beg == end)
		return new no(getcnt(n) + val);
	no* ans = (n ? new no(*n) : new no());
	int mid = (beg + end) >> 1;
	if(pos <= mid)
		ans->l = upd(ans->l, pos, val, beg, mid);
	else
		ans->r = upd(ans->r, pos, val, mid + 1, end);
	ans->cnt = getcnt(ans->l) + getcnt(ans->r);
	return ans;
}

int get(no* n, int pos, int beg = 1, int end = MAXA)
{
	if(!n)
		return 0;
	int mid = (beg + end) >> 1;
	if(pos <= mid)
		return get(n->l, pos, beg, mid) + getcnt(n->r);
	return get(n->r, pos, mid + 1, end);
}

no* pseg[MAXK];

int bs(int x, int y)
{
	if(x < y)
		swap(x, y);
	int beg = 0, end = k, mid, p, q;
	while(beg < end)
	{
		mid = (beg + end + 1) >> 1;
		p = get(pseg[end], y - 1) - get(pseg[mid - 1], y - 1);
		q = get(pseg[end], x - 1) - get(pseg[mid - 1], x - 1);
		if(p - q > 0)
			beg = mid;			
		else
			end = mid - 1;
	}
	return beg;
}

int main()
{
	pseg[0] = nullptr;
	scanf("%d %d", &n, &k);
	for(int i = 1; i <= n; ++i)
		scanf("%d %d", &a[i], &b[i]);
	for(int i = 1; i <= k; ++i)
		scanf("%d", &t[i]), pseg[i] = upd(pseg[i - 1], t[i]);
	for(int i = 1, swaps, j; i <= n; ++i)
	{
		/*for(j = k, swaps = 0; j >= 1; --j)
			if(min(a[i], b[i]) <= t[j] && t[j] < max(a[i], b[i]))
				break;*/
		j = bs(a[i], b[i]), swaps = 0;
		if(min(a[i], b[i]) <= t[j] && t[j] < max(a[i], b[i]))
			swaps += (a[i] < b[i]);
		swaps += get(pseg[k], max(a[i], b[i]) - 1) - get(pseg[j], max(a[i], b[i]) - 1);
		ans += (swaps % 2 ? b[i] : a[i]);
	}
	printf("%lld\n", ans);
}

Compilation message

fortune_telling2.cpp: In function 'int main()':
fortune_telling2.cpp:64:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &k);
  ~~~~~^~~~~~~~~~~~~~~~~
fortune_telling2.cpp:66:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", &a[i], &b[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~
fortune_telling2.cpp:68:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &t[i]), pseg[i] = upd(pseg[i - 1], t[i]);
   ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1408 KB Output is correct
2 Correct 5 ms 1408 KB Output is correct
3 Correct 7 ms 1408 KB Output is correct
4 Correct 7 ms 1280 KB Output is correct
5 Correct 8 ms 1408 KB Output is correct
6 Correct 8 ms 1408 KB Output is correct
7 Correct 9 ms 1408 KB Output is correct
8 Correct 7 ms 1536 KB Output is correct
9 Correct 7 ms 1280 KB Output is correct
10 Correct 4 ms 1280 KB Output is correct
11 Correct 8 ms 1408 KB Output is correct
12 Correct 7 ms 1408 KB Output is correct
13 Correct 8 ms 1408 KB Output is correct

Subtask #2
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1408 KB Output is correct
2 Correct 5 ms 1408 KB Output is correct
3 Correct 7 ms 1408 KB Output is correct
4 Correct 7 ms 1280 KB Output is correct
5 Correct 8 ms 1408 KB Output is correct
6 Correct 8 ms 1408 KB Output is correct
7 Correct 9 ms 1408 KB Output is correct
8 Correct 7 ms 1536 KB Output is correct
9 Correct 7 ms 1280 KB Output is correct
10 Correct 4 ms 1280 KB Output is correct
11 Correct 8 ms 1408 KB Output is correct
12 Correct 7 ms 1408 KB Output is correct
13 Correct 8 ms 1408 KB Output is correct
14 Correct 83 ms 10360 KB Output is correct
15 Correct 167 ms 20212 KB Output is correct
16 Correct 299 ms 30180 KB Output is correct
17 Correct 418 ms 40056 KB Output is correct
18 Correct 388 ms 40104 KB Output is correct
19 Correct 362 ms 39968 KB Output is correct
20 Correct 410 ms 40056 KB Output is correct
21 Correct 304 ms 39864 KB Output is correct
22 Correct 355 ms 39968 KB Output is correct
23 Correct 367 ms 39972 KB Output is correct
24 Correct 380 ms 40056 KB Output is correct
25 Correct 378 ms 39928 KB Output is correct
26 Correct 262 ms 39856 KB Output is correct
27 Correct 360 ms 39928 KB Output is correct
28 Correct 313 ms 39928 KB Output is correct
29 Correct 413 ms 40056 KB Output is correct

Subtask #3
0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1408 KB Output is correct
2 Correct 5 ms 1408 KB Output is correct
3 Correct 7 ms 1408 KB Output is correct
4 Correct 7 ms 1280 KB Output is correct
5 Correct 8 ms 1408 KB Output is correct
6 Correct 8 ms 1408 KB Output is correct
7 Correct 9 ms 1408 KB Output is correct
8 Correct 7 ms 1536 KB Output is correct
9 Correct 7 ms 1280 KB Output is correct
10 Correct 4 ms 1280 KB Output is correct
11 Correct 8 ms 1408 KB Output is correct
12 Correct 7 ms 1408 KB Output is correct
13 Correct 8 ms 1408 KB Output is correct
14 Correct 83 ms 10360 KB Output is correct
15 Correct 167 ms 20212 KB Output is correct
16 Correct 299 ms 30180 KB Output is correct
17 Correct 418 ms 40056 KB Output is correct
18 Correct 388 ms 40104 KB Output is correct
19 Correct 362 ms 39968 KB Output is correct
20 Correct 410 ms 40056 KB Output is correct
21 Correct 304 ms 39864 KB Output is correct
22 Correct 355 ms 39968 KB Output is correct
23 Correct 367 ms 39972 KB Output is correct
24 Correct 380 ms 40056 KB Output is correct
25 Correct 378 ms 39928 KB Output is correct
26 Correct 262 ms 39856 KB Output is correct
27 Correct 360 ms 39928 KB Output is correct
28 Correct 313 ms 39928 KB Output is correct
29 Correct 413 ms 40056 KB Output is correct
30 Correct 769 ms 198740 KB Output is correct
31 Correct 1464 ms 199720 KB Output is correct
32 Correct 2140 ms 201208 KB Output is correct
33 Execution timed out 3116 ms 203896 KB Time limit exceeded
34 Halted 0 ms 0 KB -