oj.uz

Submission #123274

# Submission time Handle Problem Language Result Execution time Memory
123274 2019-07-01T04:13:07 Z 이온조(#3019) Two Antennas (JOI19_antennas) C++14
13 / 100
 1518 ms 40868 KB 
#include <bits/stdc++.h>
using namespace std;

int mx[2009][2009];
int H[200009], A[200009], B[200009];

bool chk(int i, int j) {
	return max(A[i], A[j]) <= j-i && j-i <= min(B[i], B[j]);
}

int main() {
	int N; scanf("%d",&N);
	for(int i=1; i<=N; i++) scanf("%d%d%d",&H[i],&A[i],&B[i]);
	for(int i=1; i<=N; i++) {
		mx[i][i] = -1;
		for(int j=i+1; j<=N; j++) {
			if(chk(i, j)) mx[i][j] = max({mx[i][j-1], H[i] - H[j], H[j] - H[i]});
			else mx[i][j] = mx[i][j-1];
		}
	}
	int Q; scanf("%d",&Q);
	for(int i=0; i<Q; i++) {
		int L, R; scanf("%d%d",&L,&R);
		int ans = -1;
		for(int j=L; j<=R; j++) ans = max({ans, mx[L][j], mx[j][R]});
		printf("%d\n", ans);
	}
	return 0;
}

Compilation message

antennas.cpp: In function 'int main()':
antennas.cpp:12:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  int N; scanf("%d",&N);
         ~~~~~^~~~~~~~~
antennas.cpp:13:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1; i<=N; i++) scanf("%d%d%d",&H[i],&A[i],&B[i]);
                          ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
antennas.cpp:21:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  int Q; scanf("%d",&Q);
         ~~~~~^~~~~~~~~
antennas.cpp:23:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int L, R; scanf("%d%d",&L,&R);
             ~~~~~^~~~~~~~~~~~~~

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 760 KB Output is correct
2 Correct 3 ms 1656 KB Output is correct
3 Correct 3 ms 1400 KB Output is correct
4 Correct 3 ms 1656 KB Output is correct
5 Correct 3 ms 1400 KB Output is correct
6 Correct 3 ms 1680 KB Output is correct
7 Correct 3 ms 1528 KB Output is correct
8 Correct 3 ms 1656 KB Output is correct
9 Correct 2 ms 760 KB Output is correct
10 Correct 3 ms 1784 KB Output is correct
11 Correct 2 ms 632 KB Output is correct
12 Correct 3 ms 1784 KB Output is correct
13 Correct 3 ms 1500 KB Output is correct
14 Correct 3 ms 1528 KB Output is correct
15 Correct 3 ms 1500 KB Output is correct
16 Correct 3 ms 1400 KB Output is correct
17 Correct 3 ms 1528 KB Output is correct
18 Correct 3 ms 1400 KB Output is correct
19 Correct 3 ms 1400 KB Output is correct
20 Correct 3 ms 1400 KB Output is correct
21 Correct 3 ms 1400 KB Output is correct
22 Correct 3 ms 1532 KB Output is correct
23 Correct 3 ms 1400 KB Output is correct
24 Correct 3 ms 1400 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 760 KB Output is correct
2 Correct 3 ms 1656 KB Output is correct
3 Correct 3 ms 1400 KB Output is correct
4 Correct 3 ms 1656 KB Output is correct
5 Correct 3 ms 1400 KB Output is correct
6 Correct 3 ms 1680 KB Output is correct
7 Correct 3 ms 1528 KB Output is correct
8 Correct 3 ms 1656 KB Output is correct
9 Correct 2 ms 760 KB Output is correct
10 Correct 3 ms 1784 KB Output is correct
11 Correct 2 ms 632 KB Output is correct
12 Correct 3 ms 1784 KB Output is correct
13 Correct 3 ms 1500 KB Output is correct
14 Correct 3 ms 1528 KB Output is correct
15 Correct 3 ms 1500 KB Output is correct
16 Correct 3 ms 1400 KB Output is correct
17 Correct 3 ms 1528 KB Output is correct
18 Correct 3 ms 1400 KB Output is correct
19 Correct 3 ms 1400 KB Output is correct
20 Correct 3 ms 1400 KB Output is correct
21 Correct 3 ms 1400 KB Output is correct
22 Correct 3 ms 1532 KB Output is correct
23 Correct 3 ms 1400 KB Output is correct
24 Correct 3 ms 1400 KB Output is correct
25 Correct 160 ms 7800 KB Output is correct
26 Correct 76 ms 14456 KB Output is correct
27 Correct 524 ms 15036 KB Output is correct
28 Correct 723 ms 17768 KB Output is correct
29 Correct 179 ms 8540 KB Output is correct
30 Correct 507 ms 16760 KB Output is correct
31 Correct 97 ms 4448 KB Output is correct
32 Correct 706 ms 17848 KB Output is correct
33 Correct 341 ms 11152 KB Output is correct
34 Correct 365 ms 16020 KB Output is correct
35 Correct 439 ms 13732 KB Output is correct
36 Correct 688 ms 17776 KB Output is correct
37 Correct 390 ms 15312 KB Output is correct
38 Correct 703 ms 16620 KB Output is correct
39 Correct 129 ms 14200 KB Output is correct
40 Correct 697 ms 16556 KB Output is correct
41 Correct 500 ms 15736 KB Output is correct
42 Correct 674 ms 16620 KB Output is correct
43 Correct 231 ms 14720 KB Output is correct
44 Correct 665 ms 16760 KB Output is correct
45 Correct 125 ms 14328 KB Output is correct
46 Correct 655 ms 16644 KB Output is correct
47 Correct 179 ms 14584 KB Output is correct
48 Correct 667 ms 16436 KB Output is correct

Subtask #3
0 / 22.0

# Verdict Execution time Memory Grader output
1 Runtime error 1518 ms 40868 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #4
0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 760 KB Output is correct
2 Correct 3 ms 1656 KB Output is correct
3 Correct 3 ms 1400 KB Output is correct
4 Correct 3 ms 1656 KB Output is correct
5 Correct 3 ms 1400 KB Output is correct
6 Correct 3 ms 1680 KB Output is correct
7 Correct 3 ms 1528 KB Output is correct
8 Correct 3 ms 1656 KB Output is correct
9 Correct 2 ms 760 KB Output is correct
10 Correct 3 ms 1784 KB Output is correct
11 Correct 2 ms 632 KB Output is correct
12 Correct 3 ms 1784 KB Output is correct
13 Correct 3 ms 1500 KB Output is correct
14 Correct 3 ms 1528 KB Output is correct
15 Correct 3 ms 1500 KB Output is correct
16 Correct 3 ms 1400 KB Output is correct
17 Correct 3 ms 1528 KB Output is correct
18 Correct 3 ms 1400 KB Output is correct
19 Correct 3 ms 1400 KB Output is correct
20 Correct 3 ms 1400 KB Output is correct
21 Correct 3 ms 1400 KB Output is correct
22 Correct 3 ms 1532 KB Output is correct
23 Correct 3 ms 1400 KB Output is correct
24 Correct 3 ms 1400 KB Output is correct
25 Correct 160 ms 7800 KB Output is correct
26 Correct 76 ms 14456 KB Output is correct
27 Correct 524 ms 15036 KB Output is correct
28 Correct 723 ms 17768 KB Output is correct
29 Correct 179 ms 8540 KB Output is correct
30 Correct 507 ms 16760 KB Output is correct
31 Correct 97 ms 4448 KB Output is correct
32 Correct 706 ms 17848 KB Output is correct
33 Correct 341 ms 11152 KB Output is correct
34 Correct 365 ms 16020 KB Output is correct
35 Correct 439 ms 13732 KB Output is correct
36 Correct 688 ms 17776 KB Output is correct
37 Correct 390 ms 15312 KB Output is correct
38 Correct 703 ms 16620 KB Output is correct
39 Correct 129 ms 14200 KB Output is correct
40 Correct 697 ms 16556 KB Output is correct
41 Correct 500 ms 15736 KB Output is correct
42 Correct 674 ms 16620 KB Output is correct
43 Correct 231 ms 14720 KB Output is correct
44 Correct 665 ms 16760 KB Output is correct
45 Correct 125 ms 14328 KB Output is correct
46 Correct 655 ms 16644 KB Output is correct
47 Correct 179 ms 14584 KB Output is correct
48 Correct 667 ms 16436 KB Output is correct
49 Runtime error 1518 ms 40868 KB Execution killed with signal 11 (could be triggered by violating memory limits)
50 Halted 0 ms 0 KB -