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Submission #536548

# Submission time Handle Problem Language Result Execution time Memory
536548 2022-03-13T13:52:38 Z rainboy 허수아비 (JOI14_scarecrows) C
5 / 100
 58 ms 340 KB 
#include <stdio.h>

#define N	400

int main() {
	static int xx[N], yy[N];
	int n, i, j, k, cnt;

	scanf("%d", &n);
	for (i = 0; i < n; i++)
		scanf("%d%d", &xx[i], &yy[i]);
	cnt = 0;
	for (i = 0; i < n; i++)
		for (j = i + 1; j < n; j++) {
			if ((xx[i] < xx[j]) != (yy[i] < yy[j]))
				continue;
			cnt++;
			for (k = 0; k < n; k++)
				if (k != i && k != j && (xx[i] < xx[k]) != (xx[j] < xx[k]) && (yy[i] < yy[k]) != (yy[j] < yy[k])) {
					cnt--;
					break;
				}
		}
	printf("%d\n", cnt);
	return 0;
}

Compilation message

scarecrows.c: In function 'main':
scarecrows.c:9:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |  scanf("%d", &n);
      |  ^~~~~~~~~~~~~~~
scarecrows.c:11:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |   scanf("%d%d", &xx[i], &yy[i]);
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 58 ms 260 KB Output is correct
2 Correct 8 ms 212 KB Output is correct
3 Correct 7 ms 212 KB Output is correct
4 Correct 3 ms 292 KB Output is correct
5 Correct 5 ms 296 KB Output is correct
6 Correct 7 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 13 ms 212 KB Output is correct
9 Correct 9 ms 296 KB Output is correct
10 Correct 2 ms 296 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 340 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #3
0 / 85.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 340 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -