oj.uz

Submission #1071173

# Submission time Handle Problem Language Result Execution time Memory
1071173 2024-08-23T05:35:25 Z sleepntsheep Cultivation (JOI17_cultivation) C++17
5 / 100
 231 ms 404 KB 
#pragma GCC optimize("O3,unroll-loops")
#include <cstdio>

#include <algorithm>
using namespace std;

int C,z=1e9,R, n, x[300], y[300], c[41][41];

int Check(int l, int u, int r, int d) {
	for (int i=0;i<=40;++i)for(int j=0;j<=40;++j)c[i][j]=0;
	for (int i = 0; i < n; ++i) {
		++c[max(0, x[i]-u)][max(0, y[i]-l)];
		--c[max(0, x[i]-u)][min(40,y[i]+r+1)];
		--c[min(40,x[i]+d+1)][max(0, y[i]-l)];
		++c[min(40,x[i]+d+1)][min(40,y[i]+r+1)];
	}
	for(int i=0;i<=40;++i)for(int j=1;j<=40;++j)c[i][j]+=c[i][j-1];
	for(int i=1;i<=40;++i)for(int j=0;j<=40;++j)c[i][j]+=c[i-1][j];
	for(int i=0;i<R;++i)for(int j=0;j<C;++j)if(!c[i][j])return 0;
	return 1;
}

int main() {
	scanf("%d%d%d", &R, &C, &n);
	for (int i = 0; i < n; ++i) scanf("%d%d", x + i, y + i), --x[i], --y[i];

	for(int l=0;l<40;++l)for(int r=0;r<40-l;++r){
		for(int u=0;u<40;++u){
			int lb=0,ub=39;
			while(lb<=ub){
				int md=lb+(ub-lb)/2;
				if(Check(l,u,r,md))ub=md-1,z=min(z,l+u+r+md);
				else lb=md+1;
			}
		}
	}
	printf("%d",z);
}

Compilation message

cultivation.cpp: In function 'int main()':
cultivation.cpp:24:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |  scanf("%d%d%d", &R, &C, &n);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~~~~
cultivation.cpp:25:35: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |  for (int i = 0; i < n; ++i) scanf("%d%d", x + i, y + i), --x[i], --y[i];
      |                              ~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 116 ms 396 KB Output is correct
2 Correct 117 ms 404 KB Output is correct
3 Correct 125 ms 344 KB Output is correct
4 Correct 139 ms 396 KB Output is correct
5 Correct 142 ms 400 KB Output is correct
6 Correct 130 ms 348 KB Output is correct
7 Correct 128 ms 348 KB Output is correct
8 Correct 125 ms 348 KB Output is correct
9 Correct 117 ms 400 KB Output is correct
10 Correct 127 ms 348 KB Output is correct
11 Correct 155 ms 344 KB Output is correct
12 Correct 124 ms 348 KB Output is correct
13 Correct 120 ms 344 KB Output is correct
14 Correct 146 ms 344 KB Output is correct
15 Correct 120 ms 348 KB Output is correct
16 Correct 120 ms 400 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 116 ms 396 KB Output is correct
2 Correct 117 ms 404 KB Output is correct
3 Correct 125 ms 344 KB Output is correct
4 Correct 139 ms 396 KB Output is correct
5 Correct 142 ms 400 KB Output is correct
6 Correct 130 ms 348 KB Output is correct
7 Correct 128 ms 348 KB Output is correct
8 Correct 125 ms 348 KB Output is correct
9 Correct 117 ms 400 KB Output is correct
10 Correct 127 ms 348 KB Output is correct
11 Correct 155 ms 344 KB Output is correct
12 Correct 124 ms 348 KB Output is correct
13 Correct 120 ms 344 KB Output is correct
14 Correct 146 ms 344 KB Output is correct
15 Correct 120 ms 348 KB Output is correct
16 Correct 120 ms 400 KB Output is correct
17 Correct 174 ms 348 KB Output is correct
18 Correct 196 ms 344 KB Output is correct
19 Correct 204 ms 404 KB Output is correct
20 Correct 140 ms 348 KB Output is correct
21 Incorrect 231 ms 348 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 116 ms 396 KB Output is correct
2 Correct 117 ms 404 KB Output is correct
3 Correct 125 ms 344 KB Output is correct
4 Correct 139 ms 396 KB Output is correct
5 Correct 142 ms 400 KB Output is correct
6 Correct 130 ms 348 KB Output is correct
7 Correct 128 ms 348 KB Output is correct
8 Correct 125 ms 348 KB Output is correct
9 Correct 117 ms 400 KB Output is correct
10 Correct 127 ms 348 KB Output is correct
11 Correct 155 ms 344 KB Output is correct
12 Correct 124 ms 348 KB Output is correct
13 Correct 120 ms 344 KB Output is correct
14 Correct 146 ms 344 KB Output is correct
15 Correct 120 ms 348 KB Output is correct
16 Correct 120 ms 400 KB Output is correct
17 Correct 174 ms 348 KB Output is correct
18 Correct 196 ms 344 KB Output is correct
19 Correct 204 ms 404 KB Output is correct
20 Correct 140 ms 348 KB Output is correct
21 Incorrect 231 ms 348 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Runtime error 0 ms 348 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Runtime error 0 ms 348 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 116 ms 396 KB Output is correct
2 Correct 117 ms 404 KB Output is correct
3 Correct 125 ms 344 KB Output is correct
4 Correct 139 ms 396 KB Output is correct
5 Correct 142 ms 400 KB Output is correct
6 Correct 130 ms 348 KB Output is correct
7 Correct 128 ms 348 KB Output is correct
8 Correct 125 ms 348 KB Output is correct
9 Correct 117 ms 400 KB Output is correct
10 Correct 127 ms 348 KB Output is correct
11 Correct 155 ms 344 KB Output is correct
12 Correct 124 ms 348 KB Output is correct
13 Correct 120 ms 344 KB Output is correct
14 Correct 146 ms 344 KB Output is correct
15 Correct 120 ms 348 KB Output is correct
16 Correct 120 ms 400 KB Output is correct
17 Correct 174 ms 348 KB Output is correct
18 Correct 196 ms 344 KB Output is correct
19 Correct 204 ms 404 KB Output is correct
20 Correct 140 ms 348 KB Output is correct
21 Incorrect 231 ms 348 KB Output isn't correct
22 Halted 0 ms 0 KB -