oj.uz

Submission #76739

# Submission time Handle Problem Language Result Execution time Memory
76739 2018-09-17T06:09:32 Z Good Chessboard (IZhO18_chessboard) C++11
70 / 100
 2000 ms 63724 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>

#define ff first
#define ss second
#define Maxn 100009
#define ll long long
#define pb push_back
#define Inf 1000000009
#define ppb() pop_back()
#define pii pair <int , int>
#define mid(x, y) (x + y) / 2
#define all(x) x.begin(),x.end()
#define llInf 1000000000000000009
#define tr(i, c) for(__typeof(c).begin() i = (c).begin() ; i != (c).end() ; i++)
using namespace std;
using namespace __gnu_pbds;
typedef tree <int, null_type, less <int>, rb_tree_tag, tree_order_statistics_node_update> order;

int n, k;
pii x[Maxn];
pii y[Maxn];
ll ans = llInf;

vector <int> A;

int main () {
	//freopen ("file.in", "r", stdin);
	//freopen ("file.out", "w", stdout);
	
 	//srand ((unsigned) time ( NULL ));
	//int randomNumber = rand() % 10 + 1;

	scanf ("%d%d", &n, &k);

	for (int i = 1; i <= k; i++)
		scanf ("%d%d%d%d", &x[i].ff, &y[i].ff, &x[i].ss, &y[i].ss);	


	for (int i = 1; i < n; i++)
		if (!(n % i))
			A.pb (i);	

	if (k == 0) {
		for (auto i: A) {
			ll v = i;
			ll u = n / i;
			
			u = ((u * u) / 2) * v * v;
			ans = min (ans, u);
		}
		
		return printf ("%lld\n", ans), 0;	
	}

	for (int i = 0; i < 2; i++) {
		for (auto j: A) {
			ll v = j;
			ll u = n / j;
			
			if (i)
				u = ((u * u) / 2) * v * v;
			
			else
				u = ((u * u) - (u * u) / 2) * v * v;
						
			for (int l = 1; l <= k; l++) {
				for (int p = x[l].ff; p <= x[l].ss; p++)
					for (int e = y[l].ff; e <= y[l].ss; e++) {
						int a = (p - 1) / j;
						int b = (e - 1) / j;
						
						bool q = 0;
						if (!(a & 1) and b & 1) q = 1;
						if (a & 1 and !(b & 1)) q = 1;
							
						if (i)
							q = !q;							
						
						if (q) u++;
						else u --;
															
					}	 
			}
			ans = min (ans, u);
		}	
	}

	printf ("%lld\n", ans);
	return 0;
}

Compilation message

chessboard.cpp: In function 'int main()':
chessboard.cpp:34:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf ("%d%d", &n, &k);
  ~~~~~~^~~~~~~~~~~~~~~~
chessboard.cpp:37:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf ("%d%d%d%d", &x[i].ff, &y[i].ff, &x[i].ss, &y[i].ss); 
   ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 592 KB Output is correct
4 Correct 3 ms 600 KB Output is correct
5 Correct 2 ms 600 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 3 ms 684 KB Output is correct
8 Correct 2 ms 684 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 3136 KB Output is correct
2 Correct 11 ms 3136 KB Output is correct
3 Correct 28 ms 4112 KB Output is correct
4 Correct 26 ms 5052 KB Output is correct
5 Correct 32 ms 6512 KB Output is correct
6 Correct 22 ms 6908 KB Output is correct
7 Correct 6 ms 6908 KB Output is correct
8 Correct 23 ms 8056 KB Output is correct
9 Correct 68 ms 10972 KB Output is correct
10 Correct 30 ms 11516 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 11516 KB Output is correct
2 Correct 2 ms 11516 KB Output is correct
3 Correct 2 ms 11516 KB Output is correct
4 Correct 3 ms 11516 KB Output is correct
5 Correct 2 ms 11516 KB Output is correct
6 Correct 3 ms 11516 KB Output is correct
7 Correct 3 ms 11516 KB Output is correct
8 Correct 2 ms 11516 KB Output is correct
9 Correct 2 ms 11516 KB Output is correct
10 Correct 2 ms 11516 KB Output is correct
11 Correct 2 ms 11516 KB Output is correct
12 Correct 2 ms 11516 KB Output is correct
13 Correct 3 ms 11516 KB Output is correct
14 Correct 3 ms 11516 KB Output is correct
15 Correct 2 ms 11516 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 11516 KB Output is correct
2 Correct 2 ms 11516 KB Output is correct
3 Correct 2 ms 11516 KB Output is correct
4 Correct 3 ms 11516 KB Output is correct
5 Correct 2 ms 11516 KB Output is correct
6 Correct 3 ms 11516 KB Output is correct
7 Correct 3 ms 11516 KB Output is correct
8 Correct 2 ms 11516 KB Output is correct
9 Correct 2 ms 11516 KB Output is correct
10 Correct 2 ms 11516 KB Output is correct
11 Correct 2 ms 11516 KB Output is correct
12 Correct 2 ms 11516 KB Output is correct
13 Correct 3 ms 11516 KB Output is correct
14 Correct 3 ms 11516 KB Output is correct
15 Correct 2 ms 11516 KB Output is correct
16 Correct 19 ms 11744 KB Output is correct
17 Correct 46 ms 13984 KB Output is correct
18 Correct 59 ms 15856 KB Output is correct
19 Correct 151 ms 17184 KB Output is correct
20 Correct 172 ms 18888 KB Output is correct
21 Correct 41 ms 19952 KB Output is correct
22 Correct 2 ms 19952 KB Output is correct
23 Correct 35 ms 20008 KB Output is correct
24 Correct 52 ms 22184 KB Output is correct
25 Correct 9 ms 22184 KB Output is correct
26 Correct 35 ms 22824 KB Output is correct
27 Correct 50 ms 23996 KB Output is correct
28 Correct 59 ms 26012 KB Output is correct
29 Correct 27 ms 26012 KB Output is correct
30 Correct 4 ms 26012 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 3136 KB Output is correct
2 Correct 11 ms 3136 KB Output is correct
3 Correct 28 ms 4112 KB Output is correct
4 Correct 26 ms 5052 KB Output is correct
5 Correct 32 ms 6512 KB Output is correct
6 Correct 22 ms 6908 KB Output is correct
7 Correct 6 ms 6908 KB Output is correct
8 Correct 23 ms 8056 KB Output is correct
9 Correct 68 ms 10972 KB Output is correct
10 Correct 30 ms 11516 KB Output is correct
11 Correct 2 ms 11516 KB Output is correct
12 Correct 2 ms 11516 KB Output is correct
13 Correct 2 ms 11516 KB Output is correct
14 Correct 3 ms 11516 KB Output is correct
15 Correct 2 ms 11516 KB Output is correct
16 Correct 3 ms 11516 KB Output is correct
17 Correct 3 ms 11516 KB Output is correct
18 Correct 2 ms 11516 KB Output is correct
19 Correct 2 ms 11516 KB Output is correct
20 Correct 2 ms 11516 KB Output is correct
21 Correct 2 ms 11516 KB Output is correct
22 Correct 2 ms 11516 KB Output is correct
23 Correct 3 ms 11516 KB Output is correct
24 Correct 3 ms 11516 KB Output is correct
25 Correct 2 ms 11516 KB Output is correct
26 Correct 19 ms 11744 KB Output is correct
27 Correct 46 ms 13984 KB Output is correct
28 Correct 59 ms 15856 KB Output is correct
29 Correct 151 ms 17184 KB Output is correct
30 Correct 172 ms 18888 KB Output is correct
31 Correct 41 ms 19952 KB Output is correct
32 Correct 2 ms 19952 KB Output is correct
33 Correct 35 ms 20008 KB Output is correct
34 Correct 52 ms 22184 KB Output is correct
35 Correct 9 ms 22184 KB Output is correct
36 Correct 35 ms 22824 KB Output is correct
37 Correct 50 ms 23996 KB Output is correct
38 Correct 59 ms 26012 KB Output is correct
39 Correct 27 ms 26012 KB Output is correct
40 Correct 4 ms 26012 KB Output is correct
41 Correct 148 ms 28392 KB Output is correct
42 Correct 66 ms 30800 KB Output is correct
43 Correct 91 ms 32648 KB Output is correct
44 Correct 63 ms 35028 KB Output is correct
45 Correct 64 ms 37472 KB Output is correct
46 Correct 155 ms 39564 KB Output is correct
47 Correct 49 ms 41544 KB Output is correct
48 Correct 74 ms 43824 KB Output is correct
49 Correct 60 ms 45704 KB Output is correct
50 Correct 598 ms 47860 KB Output is correct
51 Correct 642 ms 50412 KB Output is correct
52 Correct 592 ms 52468 KB Output is correct
53 Correct 643 ms 54908 KB Output is correct
54 Correct 587 ms 56932 KB Output is correct
55 Correct 661 ms 59440 KB Output is correct
56 Correct 566 ms 61312 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 592 KB Output is correct
4 Correct 3 ms 600 KB Output is correct
5 Correct 2 ms 600 KB Output is correct
6 Correct 2 ms 600 KB Output is correct
7 Correct 3 ms 684 KB Output is correct
8 Correct 2 ms 684 KB Output is correct
9 Correct 37 ms 3136 KB Output is correct
10 Correct 11 ms 3136 KB Output is correct
11 Correct 28 ms 4112 KB Output is correct
12 Correct 26 ms 5052 KB Output is correct
13 Correct 32 ms 6512 KB Output is correct
14 Correct 22 ms 6908 KB Output is correct
15 Correct 6 ms 6908 KB Output is correct
16 Correct 23 ms 8056 KB Output is correct
17 Correct 68 ms 10972 KB Output is correct
18 Correct 30 ms 11516 KB Output is correct
19 Correct 2 ms 11516 KB Output is correct
20 Correct 2 ms 11516 KB Output is correct
21 Correct 2 ms 11516 KB Output is correct
22 Correct 3 ms 11516 KB Output is correct
23 Correct 2 ms 11516 KB Output is correct
24 Correct 3 ms 11516 KB Output is correct
25 Correct 3 ms 11516 KB Output is correct
26 Correct 2 ms 11516 KB Output is correct
27 Correct 2 ms 11516 KB Output is correct
28 Correct 2 ms 11516 KB Output is correct
29 Correct 2 ms 11516 KB Output is correct
30 Correct 2 ms 11516 KB Output is correct
31 Correct 3 ms 11516 KB Output is correct
32 Correct 3 ms 11516 KB Output is correct
33 Correct 2 ms 11516 KB Output is correct
34 Correct 19 ms 11744 KB Output is correct
35 Correct 46 ms 13984 KB Output is correct
36 Correct 59 ms 15856 KB Output is correct
37 Correct 151 ms 17184 KB Output is correct
38 Correct 172 ms 18888 KB Output is correct
39 Correct 41 ms 19952 KB Output is correct
40 Correct 2 ms 19952 KB Output is correct
41 Correct 35 ms 20008 KB Output is correct
42 Correct 52 ms 22184 KB Output is correct
43 Correct 9 ms 22184 KB Output is correct
44 Correct 35 ms 22824 KB Output is correct
45 Correct 50 ms 23996 KB Output is correct
46 Correct 59 ms 26012 KB Output is correct
47 Correct 27 ms 26012 KB Output is correct
48 Correct 4 ms 26012 KB Output is correct
49 Correct 148 ms 28392 KB Output is correct
50 Correct 66 ms 30800 KB Output is correct
51 Correct 91 ms 32648 KB Output is correct
52 Correct 63 ms 35028 KB Output is correct
53 Correct 64 ms 37472 KB Output is correct
54 Correct 155 ms 39564 KB Output is correct
55 Correct 49 ms 41544 KB Output is correct
56 Correct 74 ms 43824 KB Output is correct
57 Correct 60 ms 45704 KB Output is correct
58 Correct 598 ms 47860 KB Output is correct
59 Correct 642 ms 50412 KB Output is correct
60 Correct 592 ms 52468 KB Output is correct
61 Correct 643 ms 54908 KB Output is correct
62 Correct 587 ms 56932 KB Output is correct
63 Correct 661 ms 59440 KB Output is correct
64 Correct 566 ms 61312 KB Output is correct
65 Correct 3 ms 61312 KB Output is correct
66 Correct 2 ms 61312 KB Output is correct
67 Execution timed out 2055 ms 63724 KB Time limit exceeded
68 Halted 0 ms 0 KB -