oj.uz

Submission #100472

# Submission time Handle Problem Language Result Execution time Memory
100472 2019-03-11T13:41:42 Z davitmarg Chessboard (IZhO18_chessboard) C++17
100 / 100
 722 ms 6776 KB 
/*
DEATH-MATCH
Davit-Marg
*/
#include <iostream>
#include <algorithm>
#include <cmath>
#include <vector>
#include <string>
#include <cstring>
#include <map>
#include <set>
#include <queue>
#include <deque>
#include <stack>
#include <iterator>
#include <ctype.h>
#include <stdlib.h>  
#include <fstream>  
#define mod 1000000007ll
#define LL long long
#define LD long double
#define MP make_pair
#define PB push_back
using namespace std;

LL n, k, best = mod * mod;
pair<LL, LL> c1[100005], c2[100005];
vector<LL> d;

LL check(LL d)
{
	LL r = (n*n) / (d*d) / 2 * (d*d);
	if (((n*n) / (d*d)) % 2 == 1)
		r += d * d;

	vector<int> prk(n+5,0), prz(n + 5,0);
	for (int i = 1; i <= n; i++)
	{
		prk[i] = prk[i - 1];
		if (((i-1) / d) % 2 == 0)
			prk[i]++;
		prz[i] = i - prk[i];
	}


	for (LL i = 0; i < k; i++)
	{
		LL zx = prz[c2[i].first] - prz[c1[i].first - 1], zy = prz[c2[i].second] - prz[c1[i].second - 1];
		LL kx = prk[c2[i].first] - prk[c1[i].first - 1], ky = prk[c2[i].second] - prk[c1[i].second - 1];
		r -= zx * zy;
		r -= kx * ky;
		r += kx * zy;
		r += zx * ky;
	}
	return r;
}

int main()
{
	cin >> n >> k;
	for (LL i = 1; i <= n / 2; i++)
		if (n%i == 0)
			d.PB(i);
	for (LL i = 0; i < k; i++)
	{
		cin >> c1[i].first >> c1[i].second >> c2[i].first >> c2[i].second;
	}

	for (LL i = 0; i < d.size(); i++)
	{
		LL ans = check(d[i]);
		best = min(best, min(n*n - ans, ans));
	}

	cout << best << endl;
	return 0;
}

Compilation message

chessboard.cpp: In function 'int main()':
chessboard.cpp:70:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (LL i = 0; i < d.size(); i++)
                 ~~^~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 384 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 84 ms 4220 KB Output is correct
2 Correct 20 ms 1272 KB Output is correct
3 Correct 68 ms 3192 KB Output is correct
4 Correct 46 ms 2552 KB Output is correct
5 Correct 68 ms 3828 KB Output is correct
6 Correct 43 ms 2556 KB Output is correct
7 Correct 11 ms 896 KB Output is correct
8 Correct 45 ms 2680 KB Output is correct
9 Correct 109 ms 5468 KB Output is correct
10 Correct 63 ms 3312 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 512 KB Output is correct
2 Correct 2 ms 512 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 3 ms 284 KB Output is correct
12 Correct 3 ms 384 KB Output is correct
13 Correct 3 ms 372 KB Output is correct
14 Correct 3 ms 384 KB Output is correct
15 Correct 3 ms 384 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 512 KB Output is correct
2 Correct 2 ms 512 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 3 ms 284 KB Output is correct
12 Correct 3 ms 384 KB Output is correct
13 Correct 3 ms 372 KB Output is correct
14 Correct 3 ms 384 KB Output is correct
15 Correct 3 ms 384 KB Output is correct
16 Correct 29 ms 1664 KB Output is correct
17 Correct 87 ms 4344 KB Output is correct
18 Correct 120 ms 4984 KB Output is correct
19 Correct 154 ms 4472 KB Output is correct
20 Correct 108 ms 5120 KB Output is correct
21 Correct 79 ms 4088 KB Output is correct
22 Correct 3 ms 384 KB Output is correct
23 Correct 59 ms 2324 KB Output is correct
24 Correct 116 ms 4628 KB Output is correct
25 Correct 11 ms 768 KB Output is correct
26 Correct 53 ms 2936 KB Output is correct
27 Correct 69 ms 3576 KB Output is correct
28 Correct 118 ms 4856 KB Output is correct
29 Correct 37 ms 1912 KB Output is correct
30 Correct 5 ms 384 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 84 ms 4220 KB Output is correct
2 Correct 20 ms 1272 KB Output is correct
3 Correct 68 ms 3192 KB Output is correct
4 Correct 46 ms 2552 KB Output is correct
5 Correct 68 ms 3828 KB Output is correct
6 Correct 43 ms 2556 KB Output is correct
7 Correct 11 ms 896 KB Output is correct
8 Correct 45 ms 2680 KB Output is correct
9 Correct 109 ms 5468 KB Output is correct
10 Correct 63 ms 3312 KB Output is correct
11 Correct 2 ms 512 KB Output is correct
12 Correct 2 ms 512 KB Output is correct
13 Correct 2 ms 384 KB Output is correct
14 Correct 4 ms 384 KB Output is correct
15 Correct 3 ms 384 KB Output is correct
16 Correct 2 ms 384 KB Output is correct
17 Correct 3 ms 384 KB Output is correct
18 Correct 3 ms 384 KB Output is correct
19 Correct 3 ms 384 KB Output is correct
20 Correct 2 ms 384 KB Output is correct
21 Correct 3 ms 284 KB Output is correct
22 Correct 3 ms 384 KB Output is correct
23 Correct 3 ms 372 KB Output is correct
24 Correct 3 ms 384 KB Output is correct
25 Correct 3 ms 384 KB Output is correct
26 Correct 29 ms 1664 KB Output is correct
27 Correct 87 ms 4344 KB Output is correct
28 Correct 120 ms 4984 KB Output is correct
29 Correct 154 ms 4472 KB Output is correct
30 Correct 108 ms 5120 KB Output is correct
31 Correct 79 ms 4088 KB Output is correct
32 Correct 3 ms 384 KB Output is correct
33 Correct 59 ms 2324 KB Output is correct
34 Correct 116 ms 4628 KB Output is correct
35 Correct 11 ms 768 KB Output is correct
36 Correct 53 ms 2936 KB Output is correct
37 Correct 69 ms 3576 KB Output is correct
38 Correct 118 ms 4856 KB Output is correct
39 Correct 37 ms 1912 KB Output is correct
40 Correct 5 ms 384 KB Output is correct
41 Correct 174 ms 5788 KB Output is correct
42 Correct 216 ms 6392 KB Output is correct
43 Correct 152 ms 5752 KB Output is correct
44 Correct 145 ms 6180 KB Output is correct
45 Correct 121 ms 6520 KB Output is correct
46 Correct 200 ms 6448 KB Output is correct
47 Correct 104 ms 5880 KB Output is correct
48 Correct 146 ms 5952 KB Output is correct
49 Correct 113 ms 5724 KB Output is correct
50 Correct 534 ms 6132 KB Output is correct
51 Correct 589 ms 6668 KB Output is correct
52 Correct 543 ms 6248 KB Output is correct
53 Correct 531 ms 6352 KB Output is correct
54 Correct 412 ms 6056 KB Output is correct
55 Correct 520 ms 6656 KB Output is correct
56 Correct 474 ms 5932 KB Output is correct

Subtask #6
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 256 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 84 ms 4220 KB Output is correct
10 Correct 20 ms 1272 KB Output is correct
11 Correct 68 ms 3192 KB Output is correct
12 Correct 46 ms 2552 KB Output is correct
13 Correct 68 ms 3828 KB Output is correct
14 Correct 43 ms 2556 KB Output is correct
15 Correct 11 ms 896 KB Output is correct
16 Correct 45 ms 2680 KB Output is correct
17 Correct 109 ms 5468 KB Output is correct
18 Correct 63 ms 3312 KB Output is correct
19 Correct 2 ms 512 KB Output is correct
20 Correct 2 ms 512 KB Output is correct
21 Correct 2 ms 384 KB Output is correct
22 Correct 4 ms 384 KB Output is correct
23 Correct 3 ms 384 KB Output is correct
24 Correct 2 ms 384 KB Output is correct
25 Correct 3 ms 384 KB Output is correct
26 Correct 3 ms 384 KB Output is correct
27 Correct 3 ms 384 KB Output is correct
28 Correct 2 ms 384 KB Output is correct
29 Correct 3 ms 284 KB Output is correct
30 Correct 3 ms 384 KB Output is correct
31 Correct 3 ms 372 KB Output is correct
32 Correct 3 ms 384 KB Output is correct
33 Correct 3 ms 384 KB Output is correct
34 Correct 29 ms 1664 KB Output is correct
35 Correct 87 ms 4344 KB Output is correct
36 Correct 120 ms 4984 KB Output is correct
37 Correct 154 ms 4472 KB Output is correct
38 Correct 108 ms 5120 KB Output is correct
39 Correct 79 ms 4088 KB Output is correct
40 Correct 3 ms 384 KB Output is correct
41 Correct 59 ms 2324 KB Output is correct
42 Correct 116 ms 4628 KB Output is correct
43 Correct 11 ms 768 KB Output is correct
44 Correct 53 ms 2936 KB Output is correct
45 Correct 69 ms 3576 KB Output is correct
46 Correct 118 ms 4856 KB Output is correct
47 Correct 37 ms 1912 KB Output is correct
48 Correct 5 ms 384 KB Output is correct
49 Correct 174 ms 5788 KB Output is correct
50 Correct 216 ms 6392 KB Output is correct
51 Correct 152 ms 5752 KB Output is correct
52 Correct 145 ms 6180 KB Output is correct
53 Correct 121 ms 6520 KB Output is correct
54 Correct 200 ms 6448 KB Output is correct
55 Correct 104 ms 5880 KB Output is correct
56 Correct 146 ms 5952 KB Output is correct
57 Correct 113 ms 5724 KB Output is correct
58 Correct 534 ms 6132 KB Output is correct
59 Correct 589 ms 6668 KB Output is correct
60 Correct 543 ms 6248 KB Output is correct
61 Correct 531 ms 6352 KB Output is correct
62 Correct 412 ms 6056 KB Output is correct
63 Correct 520 ms 6656 KB Output is correct
64 Correct 474 ms 5932 KB Output is correct
65 Correct 2 ms 384 KB Output is correct
66 Correct 2 ms 384 KB Output is correct
67 Correct 562 ms 6352 KB Output is correct
68 Correct 583 ms 6504 KB Output is correct
69 Correct 552 ms 5952 KB Output is correct
70 Correct 429 ms 6080 KB Output is correct
71 Correct 455 ms 6120 KB Output is correct
72 Correct 502 ms 5964 KB Output is correct
73 Correct 494 ms 5788 KB Output is correct
74 Correct 531 ms 6272 KB Output is correct
75 Correct 498 ms 6088 KB Output is correct
76 Correct 722 ms 6296 KB Output is correct
77 Correct 203 ms 6624 KB Output is correct
78 Correct 142 ms 6008 KB Output is correct
79 Correct 179 ms 5948 KB Output is correct
80 Correct 196 ms 6124 KB Output is correct
81 Correct 154 ms 5736 KB Output is correct
82 Correct 137 ms 6324 KB Output is correct
83 Correct 130 ms 6056 KB Output is correct
84 Correct 358 ms 6512 KB Output is correct
85 Correct 566 ms 6528 KB Output is correct
86 Correct 162 ms 1148 KB Output is correct
87 Correct 227 ms 1096 KB Output is correct
88 Correct 605 ms 6776 KB Output is correct
89 Correct 217 ms 2184 KB Output is correct
90 Correct 154 ms 1040 KB Output is correct