oj.uz

Submission #1014865

# Submission time Handle Problem Language Result Execution time Memory
1014865 2024-07-05T16:11:16 Z rainboy Flooding Wall (BOI24_wall) C
100 / 100
 547 ms 36160 KB 
#include <stdio.h>

#define N	500000
#define N_	(1 << 19)	/* N_ = pow2(ceil(log2(N))) */
#define MD	1000000007

unsigned int Z = 12345;

int rand_() {
	return (Z *= 3) >> 1;
}

int pp2[N + 1];

void init() {
	int i;

	pp2[0] = 1;
	for (i = 1; i <= N; i++)
		pp2[i] = pp2[i - 1] * 2 % MD;
}

int yy[N * 2];

void sort(int *ii, int l, int r) {
	while (l < r) {
		int i = l, j = l, k = r, i_ = ii[l + rand_() % (r - l)], tmp;

		while (j < k)
			if (yy[ii[j]] == yy[i_])
				j++;
			else if (yy[ii[j]] < yy[i_]) {
				tmp = ii[i], ii[i] = ii[j], ii[j] = tmp;
				i++, j++;
			} else {
				k--;
				tmp = ii[j], ii[j] = ii[k], ii[k] = tmp;
			}
		sort(ii, l, i);
		l = k;
	}
}

int sz[N_ * 2], prod[N_ * 2], pref[N_ * 2], suff[N_ * 2], n_;

void pul(int i) {
	int l = i << 1, r = l | 1;

	prod[i] = (long long) prod[l] * prod[r] % MD;
	pref[i] = ((long long) pref[l] * pp2[sz[r]] + (long long) prod[l] * pref[r]) % MD;
	suff[i] = ((long long) suff[l] * prod[r] + (long long) pp2[sz[l]] * suff[r]) % MD;
}

void build(int n) {
	int i;

	n_ = 1;
	while (n_ < n)
		n_ <<= 1;
	for (i = 0; i < n_; i++)
		if (i < n)
			sz[n_ + i] = 1;
		else
			prod[n_ + i] = 1;
	for (i = n_ - 1; i > 0; i--)
		sz[i] = sz[i << 1 | 0] + sz[i << 1 | 1], pul(i);
}

void update(int i) {
	i += n_;
	pref[i] = suff[i] = ++prod[i];
	while (i > 1)
		pul(i >>= 1);
}

int main() {
	static int ii[N * 2];
	int n, h, i, x, sum, ans;

	init();
	scanf("%d", &n);
	for (i = 0; i < n; i++)
		scanf("%d", &yy[i << 1 | 0]);
	for (i = 0; i < n; i++)
		scanf("%d", &yy[i << 1 | 1]);
	for (i = 0; i < n * 2; i++)
		ii[i] = i;
	sort(ii, 0, n * 2);
	build(n);
	ans = 0;
	for (h = 0; h < n * 2; h++) {
		x = ((long long) pp2[n] * n - pref[1] - suff[1] + (long long) prod[1] * n + MD * 2) % MD;
		ans = (ans + (long long) x * (yy[ii[h]] - (h == 0 ? 0 : yy[ii[h - 1]]))) % MD;
		update(ii[h] >> 1);
	}
	sum = 0;
	for (i = 0; i < n * 2; i++)
		sum = (sum + yy[i]) % MD;
	ans = (ans - (long long) sum * pp2[n - 1] % MD + MD) % MD;
	printf("%d\n", ans);
	return 0;
}

Compilation message

Main.c: In function 'main':
Main.c:81:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   81 |  scanf("%d", &n);
      |  ^~~~~~~~~~~~~~~
Main.c:83:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   83 |   scanf("%d", &yy[i << 1 | 0]);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.c:85:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   85 |   scanf("%d", &yy[i << 1 | 1]);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 2392 KB Output is correct
2 Correct 3 ms 2392 KB Output is correct
3 Correct 3 ms 2396 KB Output is correct
4 Correct 2 ms 2396 KB Output is correct
5 Correct 3 ms 2396 KB Output is correct
6 Correct 3 ms 2396 KB Output is correct
7 Correct 3 ms 2396 KB Output is correct
8 Correct 3 ms 2396 KB Output is correct
9 Correct 2 ms 2396 KB Output is correct
10 Correct 3 ms 2396 KB Output is correct
11 Correct 3 ms 2392 KB Output is correct
12 Correct 3 ms 2396 KB Output is correct
13 Correct 3 ms 2396 KB Output is correct
14 Correct 3 ms 2396 KB Output is correct
15 Correct 2 ms 2396 KB Output is correct
16 Correct 4 ms 2396 KB Output is correct
17 Correct 3 ms 2392 KB Output is correct
18 Correct 2 ms 2396 KB Output is correct
19 Correct 3 ms 2396 KB Output is correct
20 Correct 3 ms 2392 KB Output is correct
21 Correct 3 ms 2396 KB Output is correct
22 Correct 3 ms 2396 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2392 KB Output is correct
2 Correct 3 ms 2396 KB Output is correct
3 Correct 3 ms 2396 KB Output is correct
4 Correct 3 ms 2400 KB Output is correct
5 Correct 3 ms 2408 KB Output is correct
6 Correct 2 ms 2396 KB Output is correct
7 Correct 3 ms 2396 KB Output is correct
8 Correct 3 ms 2392 KB Output is correct
9 Correct 3 ms 2396 KB Output is correct
10 Correct 2 ms 2396 KB Output is correct
11 Correct 3 ms 2396 KB Output is correct
12 Correct 3 ms 2396 KB Output is correct
13 Correct 3 ms 2396 KB Output is correct
14 Correct 2 ms 2396 KB Output is correct
15 Correct 2 ms 2396 KB Output is correct
16 Correct 3 ms 2396 KB Output is correct
17 Correct 2 ms 2396 KB Output is correct
18 Correct 2 ms 2396 KB Output is correct
19 Correct 2 ms 2396 KB Output is correct
20 Correct 3 ms 2396 KB Output is correct
21 Correct 3 ms 2396 KB Output is correct
22 Correct 3 ms 2432 KB Output is correct
23 Correct 3 ms 2396 KB Output is correct
24 Correct 3 ms 2648 KB Output is correct
25 Correct 3 ms 2396 KB Output is correct
26 Correct 3 ms 2396 KB Output is correct

Subtask #3
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2392 KB Output is correct
2 Correct 3 ms 2396 KB Output is correct
3 Correct 3 ms 2396 KB Output is correct
4 Correct 3 ms 2400 KB Output is correct
5 Correct 3 ms 2408 KB Output is correct
6 Correct 2 ms 2396 KB Output is correct
7 Correct 3 ms 2396 KB Output is correct
8 Correct 3 ms 2392 KB Output is correct
9 Correct 3 ms 2396 KB Output is correct
10 Correct 2 ms 2396 KB Output is correct
11 Correct 3 ms 2396 KB Output is correct
12 Correct 3 ms 2396 KB Output is correct
13 Correct 3 ms 2396 KB Output is correct
14 Correct 2 ms 2396 KB Output is correct
15 Correct 2 ms 2396 KB Output is correct
16 Correct 3 ms 2396 KB Output is correct
17 Correct 2 ms 2396 KB Output is correct
18 Correct 2 ms 2396 KB Output is correct
19 Correct 2 ms 2396 KB Output is correct
20 Correct 3 ms 2396 KB Output is correct
21 Correct 3 ms 2396 KB Output is correct
22 Correct 3 ms 2432 KB Output is correct
23 Correct 3 ms 2396 KB Output is correct
24 Correct 3 ms 2648 KB Output is correct
25 Correct 3 ms 2396 KB Output is correct
26 Correct 3 ms 2396 KB Output is correct
27 Correct 9 ms 2904 KB Output is correct
28 Correct 8 ms 2912 KB Output is correct
29 Correct 7 ms 2824 KB Output is correct
30 Correct 7 ms 3012 KB Output is correct
31 Correct 8 ms 2908 KB Output is correct
32 Correct 7 ms 2988 KB Output is correct
33 Correct 7 ms 2908 KB Output is correct
34 Correct 9 ms 2908 KB Output is correct
35 Correct 7 ms 2920 KB Output is correct
36 Correct 7 ms 2908 KB Output is correct
37 Correct 6 ms 3020 KB Output is correct
38 Correct 7 ms 2808 KB Output is correct
39 Correct 8 ms 2968 KB Output is correct
40 Correct 8 ms 2976 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 2392 KB Output is correct
2 Correct 3 ms 2392 KB Output is correct
3 Correct 3 ms 2396 KB Output is correct
4 Correct 2 ms 2396 KB Output is correct
5 Correct 3 ms 2396 KB Output is correct
6 Correct 3 ms 2396 KB Output is correct
7 Correct 3 ms 2396 KB Output is correct
8 Correct 3 ms 2396 KB Output is correct
9 Correct 2 ms 2396 KB Output is correct
10 Correct 3 ms 2396 KB Output is correct
11 Correct 3 ms 2392 KB Output is correct
12 Correct 3 ms 2396 KB Output is correct
13 Correct 3 ms 2396 KB Output is correct
14 Correct 3 ms 2396 KB Output is correct
15 Correct 2 ms 2396 KB Output is correct
16 Correct 4 ms 2396 KB Output is correct
17 Correct 3 ms 2392 KB Output is correct
18 Correct 2 ms 2396 KB Output is correct
19 Correct 3 ms 2396 KB Output is correct
20 Correct 3 ms 2392 KB Output is correct
21 Correct 3 ms 2396 KB Output is correct
22 Correct 3 ms 2396 KB Output is correct
23 Correct 4 ms 2392 KB Output is correct
24 Correct 3 ms 2396 KB Output is correct
25 Correct 3 ms 2396 KB Output is correct
26 Correct 3 ms 2400 KB Output is correct
27 Correct 3 ms 2408 KB Output is correct
28 Correct 2 ms 2396 KB Output is correct
29 Correct 3 ms 2396 KB Output is correct
30 Correct 3 ms 2392 KB Output is correct
31 Correct 3 ms 2396 KB Output is correct
32 Correct 2 ms 2396 KB Output is correct
33 Correct 3 ms 2396 KB Output is correct
34 Correct 3 ms 2396 KB Output is correct
35 Correct 3 ms 2396 KB Output is correct
36 Correct 2 ms 2396 KB Output is correct
37 Correct 2 ms 2396 KB Output is correct
38 Correct 3 ms 2396 KB Output is correct
39 Correct 2 ms 2396 KB Output is correct
40 Correct 2 ms 2396 KB Output is correct
41 Correct 2 ms 2396 KB Output is correct
42 Correct 3 ms 2396 KB Output is correct
43 Correct 3 ms 2396 KB Output is correct
44 Correct 3 ms 2432 KB Output is correct
45 Correct 3 ms 2396 KB Output is correct
46 Correct 3 ms 2648 KB Output is correct
47 Correct 3 ms 2396 KB Output is correct
48 Correct 3 ms 2396 KB Output is correct
49 Correct 9 ms 2904 KB Output is correct
50 Correct 8 ms 2912 KB Output is correct
51 Correct 7 ms 2824 KB Output is correct
52 Correct 7 ms 3012 KB Output is correct
53 Correct 8 ms 2908 KB Output is correct
54 Correct 7 ms 2988 KB Output is correct
55 Correct 7 ms 2908 KB Output is correct
56 Correct 9 ms 2908 KB Output is correct
57 Correct 7 ms 2920 KB Output is correct
58 Correct 7 ms 2908 KB Output is correct
59 Correct 6 ms 3020 KB Output is correct
60 Correct 7 ms 2808 KB Output is correct
61 Correct 8 ms 2968 KB Output is correct
62 Correct 8 ms 2976 KB Output is correct
63 Correct 10 ms 3164 KB Output is correct
64 Correct 9 ms 3160 KB Output is correct
65 Correct 8 ms 3184 KB Output is correct
66 Correct 8 ms 2908 KB Output is correct
67 Correct 8 ms 3008 KB Output is correct
68 Correct 8 ms 2880 KB Output is correct
69 Correct 8 ms 2904 KB Output is correct
70 Correct 9 ms 2908 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2392 KB Output is correct
2 Correct 3 ms 2396 KB Output is correct
3 Correct 2 ms 2396 KB Output is correct
4 Correct 2 ms 2396 KB Output is correct
5 Correct 3 ms 2396 KB Output is correct
6 Correct 3 ms 2396 KB Output is correct
7 Correct 2 ms 2396 KB Output is correct
8 Correct 3 ms 2396 KB Output is correct
9 Correct 3 ms 2396 KB Output is correct
10 Correct 7 ms 3016 KB Output is correct
11 Correct 7 ms 2908 KB Output is correct
12 Correct 7 ms 3044 KB Output is correct
13 Correct 10 ms 2948 KB Output is correct
14 Correct 353 ms 28160 KB Output is correct
15 Correct 278 ms 28240 KB Output is correct
16 Correct 285 ms 28244 KB Output is correct
17 Correct 275 ms 28240 KB Output is correct

Subtask #6
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 2392 KB Output is correct
2 Correct 3 ms 2392 KB Output is correct
3 Correct 3 ms 2396 KB Output is correct
4 Correct 2 ms 2396 KB Output is correct
5 Correct 3 ms 2396 KB Output is correct
6 Correct 3 ms 2396 KB Output is correct
7 Correct 3 ms 2396 KB Output is correct
8 Correct 3 ms 2396 KB Output is correct
9 Correct 2 ms 2396 KB Output is correct
10 Correct 3 ms 2396 KB Output is correct
11 Correct 3 ms 2392 KB Output is correct
12 Correct 3 ms 2396 KB Output is correct
13 Correct 3 ms 2396 KB Output is correct
14 Correct 3 ms 2396 KB Output is correct
15 Correct 2 ms 2396 KB Output is correct
16 Correct 4 ms 2396 KB Output is correct
17 Correct 3 ms 2392 KB Output is correct
18 Correct 2 ms 2396 KB Output is correct
19 Correct 3 ms 2396 KB Output is correct
20 Correct 3 ms 2392 KB Output is correct
21 Correct 3 ms 2396 KB Output is correct
22 Correct 3 ms 2396 KB Output is correct
23 Correct 4 ms 2392 KB Output is correct
24 Correct 3 ms 2396 KB Output is correct
25 Correct 3 ms 2396 KB Output is correct
26 Correct 3 ms 2400 KB Output is correct
27 Correct 3 ms 2408 KB Output is correct
28 Correct 2 ms 2396 KB Output is correct
29 Correct 3 ms 2396 KB Output is correct
30 Correct 3 ms 2392 KB Output is correct
31 Correct 3 ms 2396 KB Output is correct
32 Correct 2 ms 2396 KB Output is correct
33 Correct 3 ms 2396 KB Output is correct
34 Correct 3 ms 2396 KB Output is correct
35 Correct 3 ms 2396 KB Output is correct
36 Correct 2 ms 2396 KB Output is correct
37 Correct 2 ms 2396 KB Output is correct
38 Correct 3 ms 2396 KB Output is correct
39 Correct 2 ms 2396 KB Output is correct
40 Correct 2 ms 2396 KB Output is correct
41 Correct 2 ms 2396 KB Output is correct
42 Correct 3 ms 2396 KB Output is correct
43 Correct 3 ms 2396 KB Output is correct
44 Correct 3 ms 2432 KB Output is correct
45 Correct 3 ms 2396 KB Output is correct
46 Correct 3 ms 2648 KB Output is correct
47 Correct 3 ms 2396 KB Output is correct
48 Correct 3 ms 2396 KB Output is correct
49 Correct 9 ms 2904 KB Output is correct
50 Correct 8 ms 2912 KB Output is correct
51 Correct 7 ms 2824 KB Output is correct
52 Correct 7 ms 3012 KB Output is correct
53 Correct 8 ms 2908 KB Output is correct
54 Correct 7 ms 2988 KB Output is correct
55 Correct 7 ms 2908 KB Output is correct
56 Correct 9 ms 2908 KB Output is correct
57 Correct 7 ms 2920 KB Output is correct
58 Correct 7 ms 2908 KB Output is correct
59 Correct 6 ms 3020 KB Output is correct
60 Correct 7 ms 2808 KB Output is correct
61 Correct 8 ms 2968 KB Output is correct
62 Correct 8 ms 2976 KB Output is correct
63 Correct 10 ms 3164 KB Output is correct
64 Correct 9 ms 3160 KB Output is correct
65 Correct 8 ms 3184 KB Output is correct
66 Correct 8 ms 2908 KB Output is correct
67 Correct 8 ms 3008 KB Output is correct
68 Correct 8 ms 2880 KB Output is correct
69 Correct 8 ms 2904 KB Output is correct
70 Correct 9 ms 2908 KB Output is correct
71 Correct 2 ms 2392 KB Output is correct
72 Correct 3 ms 2396 KB Output is correct
73 Correct 2 ms 2396 KB Output is correct
74 Correct 2 ms 2396 KB Output is correct
75 Correct 3 ms 2396 KB Output is correct
76 Correct 3 ms 2396 KB Output is correct
77 Correct 2 ms 2396 KB Output is correct
78 Correct 3 ms 2396 KB Output is correct
79 Correct 3 ms 2396 KB Output is correct
80 Correct 7 ms 3016 KB Output is correct
81 Correct 7 ms 2908 KB Output is correct
82 Correct 7 ms 3044 KB Output is correct
83 Correct 10 ms 2948 KB Output is correct
84 Correct 353 ms 28160 KB Output is correct
85 Correct 278 ms 28240 KB Output is correct
86 Correct 285 ms 28244 KB Output is correct
87 Correct 275 ms 28240 KB Output is correct
88 Correct 547 ms 36084 KB Output is correct
89 Correct 494 ms 35976 KB Output is correct
90 Correct 307 ms 28244 KB Output is correct
91 Correct 323 ms 36160 KB Output is correct
92 Correct 349 ms 28284 KB Output is correct
93 Correct 308 ms 28144 KB Output is correct
94 Correct 345 ms 36028 KB Output is correct
95 Correct 308 ms 28372 KB Output is correct
96 Correct 364 ms 32180 KB Output is correct
97 Correct 335 ms 31940 KB Output is correct