oj.uz

Submission #378562

# Submission time Handle Problem Language Result Execution time Memory
378562 2021-03-17T01:46:42 Z ElaineHuang Chessboard (IZhO18_chessboard) C++14
47 / 100
 76 ms 748 KB 
#include<bits/stdc++.h>
#define debug 0
#define int long long
#define min trash
using namespace std;
int b[10005][2];//black squares
//vector<int> factor;
int factor[10005],fs;//factor size
int N;
int Min(int a,int b)
{
	return a<b?a:b;
}
int p(int f)
{
	int o=((N/f)*(N/f)/2)*f*f;//o->odd blocks
	int e=N*N-o;//e->even blocks
	if(debug) printf("f%d o%d e%d\n",f,o,e);//
	return Min(b[f][1]+e-b[f][0],b[f][0]+o-b[f][1]);//e黑//o黑 
}
signed main()
{
	int K,x1,x2,y1,y2;
	scanf("%lld %lld",&N,&K);
	int g=(int)sqrt(N);
	//factor.clear();
	memset(b,0,sizeof(b));
	for(int i=1;i<=g;i++)
	{
		if(!(N%i))
		{
			factor[fs]=i;
			fs++;
		}
		if(debug) printf("i=%d\n",i);//
	}
	if(debug) printf("%d, g%d\n",fs,g);//
	while(K--)
	{
		scanf("%lld %lld %lld %lld",&x1,&y1,&x2,&y2);
		x1--,y1--,x2--,y2--;
		for(int i=0;i<fs;i++)
		{
			int a;//determine 0 or 1
			int f;//factor
			f=factor[i];
			a=x1/f+y1/f;
			a%=2;
			b[f][a]++;
			
			if(f==N/f) break;
			if(f==1) continue;
			
			f=N/factor[i];
			a=x1/f+y1/f;
			a%=2;
			b[f][a]++;
		}
	}
	int ans=N*N;
	for(int i=0;i<fs;i++)
	{
		int f;
		f=factor[i];//p->paint幾格 
		ans=Min(p(f),ans);
		if(f==N/f) break;
		if(f==1) continue;
		f=N/f;
		ans=Min(p(f),ans);
	}
	printf("%lld\n",ans);
	return 0;
}

Compilation message

chessboard.cpp: In function 'long long int p(long long int)':
chessboard.cpp:18:22: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
   18 |  if(debug) printf("f%d o%d e%d\n",f,o,e);//
      |                     ~^            ~
      |                      |            |
      |                      int          long long int
      |                     %lld
chessboard.cpp:18:26: warning: format '%d' expects argument of type 'int', but argument 3 has type 'long long int' [-Wformat=]
   18 |  if(debug) printf("f%d o%d e%d\n",f,o,e);//
      |                         ~^          ~
      |                          |          |
      |                          int        long long int
      |                         %lld
chessboard.cpp:18:30: warning: format '%d' expects argument of type 'int', but argument 4 has type 'long long int' [-Wformat=]
   18 |  if(debug) printf("f%d o%d e%d\n",f,o,e);//
      |                             ~^        ~
      |                              |        |
      |                              int      long long int
      |                             %lld
chessboard.cpp: In function 'int main()':
chessboard.cpp:35:24: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
   35 |   if(debug) printf("i=%d\n",i);//
      |                       ~^    ~
      |                        |    |
      |                        int  long long int
      |                       %lld
chessboard.cpp:37:21: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
   37 |  if(debug) printf("%d, g%d\n",fs,g);//
      |                    ~^         ~~
      |                     |         |
      |                     int       long long int
      |                    %lld
chessboard.cpp:37:26: warning: format '%d' expects argument of type 'int', but argument 3 has type 'long long int' [-Wformat=]
   37 |  if(debug) printf("%d, g%d\n",fs,g);//
      |                         ~^       ~
      |                          |       |
      |                          int     long long int
      |                         %lld
chessboard.cpp:24:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   24 |  scanf("%lld %lld",&N,&K);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~
chessboard.cpp:40:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   40 |   scanf("%lld %lld %lld %lld",&x1,&y1,&x2,&y2);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 1 ms 492 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 1 ms 492 KB Output is correct
8 Correct 1 ms 524 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 492 KB Output is correct
2 Correct 7 ms 492 KB Output is correct
3 Correct 16 ms 492 KB Output is correct
4 Correct 17 ms 492 KB Output is correct
5 Correct 22 ms 492 KB Output is correct
6 Correct 14 ms 492 KB Output is correct
7 Correct 4 ms 492 KB Output is correct
8 Correct 14 ms 492 KB Output is correct
9 Correct 35 ms 492 KB Output is correct
10 Correct 20 ms 492 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 1 ms 512 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 1 ms 492 KB Output is correct
8 Correct 1 ms 492 KB Output is correct
9 Correct 1 ms 492 KB Output is correct
10 Correct 1 ms 492 KB Output is correct
11 Correct 1 ms 492 KB Output is correct
12 Correct 1 ms 492 KB Output is correct
13 Correct 1 ms 492 KB Output is correct
14 Correct 1 ms 492 KB Output is correct
15 Correct 1 ms 492 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 1 ms 512 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 1 ms 492 KB Output is correct
8 Correct 1 ms 492 KB Output is correct
9 Correct 1 ms 492 KB Output is correct
10 Correct 1 ms 492 KB Output is correct
11 Correct 1 ms 492 KB Output is correct
12 Correct 1 ms 492 KB Output is correct
13 Correct 1 ms 492 KB Output is correct
14 Correct 1 ms 492 KB Output is correct
15 Correct 1 ms 492 KB Output is correct
16 Correct 11 ms 492 KB Output is correct
17 Correct 28 ms 492 KB Output is correct
18 Correct 44 ms 492 KB Output is correct
19 Correct 69 ms 492 KB Output is correct
20 Correct 76 ms 492 KB Output is correct
21 Correct 28 ms 492 KB Output is correct
22 Correct 1 ms 492 KB Output is correct
23 Correct 19 ms 492 KB Output is correct
24 Correct 35 ms 492 KB Output is correct
25 Correct 4 ms 492 KB Output is correct
26 Correct 21 ms 492 KB Output is correct
27 Correct 29 ms 492 KB Output is correct
28 Correct 37 ms 492 KB Output is correct
29 Correct 12 ms 492 KB Output is correct
30 Correct 2 ms 492 KB Output is correct

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 492 KB Output is correct
2 Correct 7 ms 492 KB Output is correct
3 Correct 16 ms 492 KB Output is correct
4 Correct 17 ms 492 KB Output is correct
5 Correct 22 ms 492 KB Output is correct
6 Correct 14 ms 492 KB Output is correct
7 Correct 4 ms 492 KB Output is correct
8 Correct 14 ms 492 KB Output is correct
9 Correct 35 ms 492 KB Output is correct
10 Correct 20 ms 492 KB Output is correct
11 Correct 1 ms 492 KB Output is correct
12 Correct 1 ms 492 KB Output is correct
13 Correct 1 ms 492 KB Output is correct
14 Correct 1 ms 492 KB Output is correct
15 Correct 1 ms 512 KB Output is correct
16 Correct 1 ms 492 KB Output is correct
17 Correct 1 ms 492 KB Output is correct
18 Correct 1 ms 492 KB Output is correct
19 Correct 1 ms 492 KB Output is correct
20 Correct 1 ms 492 KB Output is correct
21 Correct 1 ms 492 KB Output is correct
22 Correct 1 ms 492 KB Output is correct
23 Correct 1 ms 492 KB Output is correct
24 Correct 1 ms 492 KB Output is correct
25 Correct 1 ms 492 KB Output is correct
26 Correct 11 ms 492 KB Output is correct
27 Correct 28 ms 492 KB Output is correct
28 Correct 44 ms 492 KB Output is correct
29 Correct 69 ms 492 KB Output is correct
30 Correct 76 ms 492 KB Output is correct
31 Correct 28 ms 492 KB Output is correct
32 Correct 1 ms 492 KB Output is correct
33 Correct 19 ms 492 KB Output is correct
34 Correct 35 ms 492 KB Output is correct
35 Correct 4 ms 492 KB Output is correct
36 Correct 21 ms 492 KB Output is correct
37 Correct 29 ms 492 KB Output is correct
38 Correct 37 ms 492 KB Output is correct
39 Correct 12 ms 492 KB Output is correct
40 Correct 2 ms 492 KB Output is correct
41 Runtime error 1 ms 748 KB Execution killed with signal 11
42 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 1 ms 492 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 1 ms 492 KB Output is correct
8 Correct 1 ms 524 KB Output is correct
9 Correct 28 ms 492 KB Output is correct
10 Correct 7 ms 492 KB Output is correct
11 Correct 16 ms 492 KB Output is correct
12 Correct 17 ms 492 KB Output is correct
13 Correct 22 ms 492 KB Output is correct
14 Correct 14 ms 492 KB Output is correct
15 Correct 4 ms 492 KB Output is correct
16 Correct 14 ms 492 KB Output is correct
17 Correct 35 ms 492 KB Output is correct
18 Correct 20 ms 492 KB Output is correct
19 Correct 1 ms 492 KB Output is correct
20 Correct 1 ms 492 KB Output is correct
21 Correct 1 ms 492 KB Output is correct
22 Correct 1 ms 492 KB Output is correct
23 Correct 1 ms 512 KB Output is correct
24 Correct 1 ms 492 KB Output is correct
25 Correct 1 ms 492 KB Output is correct
26 Correct 1 ms 492 KB Output is correct
27 Correct 1 ms 492 KB Output is correct
28 Correct 1 ms 492 KB Output is correct
29 Correct 1 ms 492 KB Output is correct
30 Correct 1 ms 492 KB Output is correct
31 Correct 1 ms 492 KB Output is correct
32 Correct 1 ms 492 KB Output is correct
33 Correct 1 ms 492 KB Output is correct
34 Correct 11 ms 492 KB Output is correct
35 Correct 28 ms 492 KB Output is correct
36 Correct 44 ms 492 KB Output is correct
37 Correct 69 ms 492 KB Output is correct
38 Correct 76 ms 492 KB Output is correct
39 Correct 28 ms 492 KB Output is correct
40 Correct 1 ms 492 KB Output is correct
41 Correct 19 ms 492 KB Output is correct
42 Correct 35 ms 492 KB Output is correct
43 Correct 4 ms 492 KB Output is correct
44 Correct 21 ms 492 KB Output is correct
45 Correct 29 ms 492 KB Output is correct
46 Correct 37 ms 492 KB Output is correct
47 Correct 12 ms 492 KB Output is correct
48 Correct 2 ms 492 KB Output is correct
49 Runtime error 1 ms 748 KB Execution killed with signal 11
50 Halted 0 ms 0 KB -