답안 #55327 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
55327	2018-07-07T03:10:09 Z	ksun48	Sparklers (JOI17_sparklers)	C++14	50 / 100	37 ms	5512 KB

sparklers

#include <bits/stdc++.h>
using namespace std;
typedef long long LL;

int main(){
	cin.sync_with_stdio(0); cin.tie(0);
	LL n, k, t;
	cin >> n >> k >> t;
	k--;
	vector<LL> x(n);
	for(int i = 0; i < n; i++){
		cin >> x[i];
	}
	sort(x.begin(), x.end());
	LL equal = 1;
	for(int i = 0; i < n; i++){
		if(x[i] != x[i]){
			equal = 0;
		}
	}

	LL s = -1; // cant
	LL e = 1000000000;
	while(s + 1 < e){
		LL m = (s + e) / 2;
		LL cover = m * t * 2;
		LL dp[n][n];
		for(LL i = k; i >= 0; i--){
			for(LL j = k; j < n; j++){
				dp[i][j] = 0;
				if(x[j]-x[i] > (j-i) * cover){
					continue;
				}
				if(i == k && j == k){
					dp[i][j] = 1;
					continue;
				}
				if(i < k && dp[i+1][j]){
					dp[i][j] = 1;
				}
				if(j > k && dp[i][j-1]){
					dp[i][j] = 1;
				}
			}
		}
		if(dp[0][n-1]){
			e = m;
		} else {
			s = m;
		}
	}
	cout << e << '\n';
}

Compilation message

sparklers.cpp: In function 'int main()':
sparklers.cpp:15:5: warning: variable 'equal' set but not used [-Wunused-but-set-variable]
  LL equal = 1;
     ^~~~~

Subtask #1
30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	460 KB	Output is correct
3	Correct	2 ms	460 KB	Output is correct
4	Correct	2 ms	476 KB	Output is correct
5	Correct	2 ms	528 KB	Output is correct
6	Correct	2 ms	656 KB	Output is correct
7	Correct	3 ms	656 KB	Output is correct
8	Correct	3 ms	656 KB	Output is correct
9	Correct	3 ms	656 KB	Output is correct
10	Correct	2 ms	656 KB	Output is correct
11	Correct	2 ms	656 KB	Output is correct
12	Correct	2 ms	656 KB	Output is correct
13	Correct	2 ms	708 KB	Output is correct
14	Correct	2 ms	728 KB	Output is correct
15	Correct	3 ms	732 KB	Output is correct
16	Correct	2 ms	736 KB	Output is correct
17	Correct	3 ms	740 KB	Output is correct
18	Correct	3 ms	744 KB	Output is correct
19	Correct	3 ms	748 KB	Output is correct
20	Correct	3 ms	868 KB	Output is correct
21	Correct	2 ms	868 KB	Output is correct

Subtask #2
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	460 KB	Output is correct
3	Correct	2 ms	460 KB	Output is correct
4	Correct	2 ms	476 KB	Output is correct
5	Correct	2 ms	528 KB	Output is correct
6	Correct	2 ms	656 KB	Output is correct
7	Correct	3 ms	656 KB	Output is correct
8	Correct	3 ms	656 KB	Output is correct
9	Correct	3 ms	656 KB	Output is correct
10	Correct	2 ms	656 KB	Output is correct
11	Correct	2 ms	656 KB	Output is correct
12	Correct	2 ms	656 KB	Output is correct
13	Correct	2 ms	708 KB	Output is correct
14	Correct	2 ms	728 KB	Output is correct
15	Correct	3 ms	732 KB	Output is correct
16	Correct	2 ms	736 KB	Output is correct
17	Correct	3 ms	740 KB	Output is correct
18	Correct	3 ms	744 KB	Output is correct
19	Correct	3 ms	748 KB	Output is correct
20	Correct	3 ms	868 KB	Output is correct
21	Correct	2 ms	868 KB	Output is correct
22	Correct	19 ms	2168 KB	Output is correct
23	Correct	9 ms	2168 KB	Output is correct
24	Correct	6 ms	2168 KB	Output is correct
25	Correct	4 ms	2168 KB	Output is correct
26	Correct	16 ms	2168 KB	Output is correct
27	Correct	17 ms	2168 KB	Output is correct
28	Correct	26 ms	5092 KB	Output is correct
29	Correct	26 ms	5232 KB	Output is correct
30	Correct	19 ms	5244 KB	Output is correct
31	Correct	21 ms	5400 KB	Output is correct
32	Correct	37 ms	5400 KB	Output is correct
33	Correct	24 ms	5400 KB	Output is correct
34	Correct	17 ms	5400 KB	Output is correct
35	Correct	21 ms	5512 KB	Output is correct
36	Correct	7 ms	5512 KB	Output is correct
37	Correct	10 ms	5512 KB	Output is correct
38	Correct	21 ms	5512 KB	Output is correct
39	Correct	9 ms	5512 KB	Output is correct
40	Correct	37 ms	5512 KB	Output is correct

Subtask #3
0 / 50.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	460 KB	Output is correct
3	Correct	2 ms	460 KB	Output is correct
4	Correct	2 ms	476 KB	Output is correct
5	Correct	2 ms	528 KB	Output is correct
6	Correct	2 ms	656 KB	Output is correct
7	Correct	3 ms	656 KB	Output is correct
8	Correct	3 ms	656 KB	Output is correct
9	Correct	3 ms	656 KB	Output is correct
10	Correct	2 ms	656 KB	Output is correct
11	Correct	2 ms	656 KB	Output is correct
12	Correct	2 ms	656 KB	Output is correct
13	Correct	2 ms	708 KB	Output is correct
14	Correct	2 ms	728 KB	Output is correct
15	Correct	3 ms	732 KB	Output is correct
16	Correct	2 ms	736 KB	Output is correct
17	Correct	3 ms	740 KB	Output is correct
18	Correct	3 ms	744 KB	Output is correct
19	Correct	3 ms	748 KB	Output is correct
20	Correct	3 ms	868 KB	Output is correct
21	Correct	2 ms	868 KB	Output is correct
22	Correct	19 ms	2168 KB	Output is correct
23	Correct	9 ms	2168 KB	Output is correct
24	Correct	6 ms	2168 KB	Output is correct
25	Correct	4 ms	2168 KB	Output is correct
26	Correct	16 ms	2168 KB	Output is correct
27	Correct	17 ms	2168 KB	Output is correct
28	Correct	26 ms	5092 KB	Output is correct
29	Correct	26 ms	5232 KB	Output is correct
30	Correct	19 ms	5244 KB	Output is correct
31	Correct	21 ms	5400 KB	Output is correct
32	Correct	37 ms	5400 KB	Output is correct
33	Correct	24 ms	5400 KB	Output is correct
34	Correct	17 ms	5400 KB	Output is correct
35	Correct	21 ms	5512 KB	Output is correct
36	Correct	7 ms	5512 KB	Output is correct
37	Correct	10 ms	5512 KB	Output is correct
38	Correct	21 ms	5512 KB	Output is correct
39	Correct	9 ms	5512 KB	Output is correct
40	Correct	37 ms	5512 KB	Output is correct
41	Runtime error	16 ms	5512 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
42	Halted	0 ms	0 KB	-

답안 #55327

Compilation message

Subtask #1 30.0 / 30.0

Subtask #2 20.0 / 20.0

Subtask #3 0 / 50.0

Subtask #1
30.0 / 30.0

Subtask #2
20.0 / 20.0

Subtask #3
0 / 50.0