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Submission #20148

# Submission time Handle Problem Language Result Execution time Memory
20148 2016-02-28T10:21:20 Z kdh9949 격자 보존하기 (GA9_preserve) C++
100 / 100
 34 ms 1864 KB 
#include <cstdio>
#include <algorithm>
using namespace std;

int l, n, k, a[100010], s[100010];

int main(){
    scanf("%d%d%d", &l, &n, &k);
    if(k > 2 * n) k = 2 * n;
    for(int i = 0; i < n; i++) scanf("%d", a + i);
    sort(a, a + n);
    for(int i = 1; i < n; i++) s[i] = a[i] - a[i - 1] - 1;
    sort(s + 1, s + n);
    reverse(s + 1, s + n);
    for(int i = 1; i < n; i++) s[i] += s[i - 1];
    if(k == 1) printf("%d", max(a[0] - 1, l - a[n - 1]));
    else if(k % 2) printf("%d", max(s[k / 2] + max(a[0] - 1, l - a[n - 1]), s[k / 2 - 1] + a[0] - 1 + l - a[n - 1]));
    else printf("%d", max(s[k / 2], s[k / 2 - 1] + a[0] - 1 + l - a[n - 1]));
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 1864 KB Output is correct
2 Correct 0 ms 1864 KB Output is correct
3 Correct 0 ms 1864 KB Output is correct
4 Correct 0 ms 1864 KB Output is correct
5 Correct 0 ms 1864 KB Output is correct
6 Correct 0 ms 1864 KB Output is correct
7 Correct 0 ms 1864 KB Output is correct
8 Correct 0 ms 1864 KB Output is correct
9 Correct 0 ms 1864 KB Output is correct
10 Correct 0 ms 1864 KB Output is correct
11 Correct 0 ms 1864 KB Output is correct
12 Correct 0 ms 1864 KB Output is correct
13 Correct 0 ms 1864 KB Output is correct
14 Correct 0 ms 1864 KB Output is correct
15 Correct 0 ms 1864 KB Output is correct
16 Correct 0 ms 1864 KB Output is correct
17 Correct 0 ms 1864 KB Output is correct
18 Correct 0 ms 1864 KB Output is correct
19 Correct 0 ms 1864 KB Output is correct
20 Correct 0 ms 1864 KB Output is correct
21 Correct 0 ms 1864 KB Output is correct
22 Correct 0 ms 1864 KB Output is correct
23 Correct 0 ms 1864 KB Output is correct
24 Correct 0 ms 1864 KB Output is correct
25 Correct 0 ms 1864 KB Output is correct
26 Correct 0 ms 1864 KB Output is correct
27 Correct 0 ms 1864 KB Output is correct
28 Correct 0 ms 1864 KB Output is correct
29 Correct 0 ms 1864 KB Output is correct
30 Correct 0 ms 1864 KB Output is correct
31 Correct 0 ms 1864 KB Output is correct
32 Correct 0 ms 1864 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 1864 KB Output is correct
2 Correct 0 ms 1864 KB Output is correct
3 Correct 0 ms 1864 KB Output is correct
4 Correct 0 ms 1864 KB Output is correct
5 Correct 0 ms 1864 KB Output is correct
6 Correct 0 ms 1864 KB Output is correct
7 Correct 0 ms 1864 KB Output is correct
8 Correct 0 ms 1864 KB Output is correct
9 Correct 0 ms 1864 KB Output is correct
10 Correct 0 ms 1864 KB Output is correct
11 Correct 0 ms 1864 KB Output is correct
12 Correct 0 ms 1864 KB Output is correct
13 Correct 0 ms 1864 KB Output is correct
14 Correct 0 ms 1864 KB Output is correct
15 Correct 0 ms 1864 KB Output is correct
16 Correct 0 ms 1864 KB Output is correct
17 Correct 0 ms 1864 KB Output is correct
18 Correct 0 ms 1864 KB Output is correct
19 Correct 0 ms 1864 KB Output is correct
20 Correct 0 ms 1864 KB Output is correct
21 Correct 0 ms 1864 KB Output is correct
22 Correct 0 ms 1864 KB Output is correct
23 Correct 0 ms 1864 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 1864 KB Output is correct
2 Correct 0 ms 1864 KB Output is correct
3 Correct 0 ms 1864 KB Output is correct
4 Correct 0 ms 1864 KB Output is correct
5 Correct 0 ms 1864 KB Output is correct
6 Correct 0 ms 1864 KB Output is correct
7 Correct 0 ms 1864 KB Output is correct
8 Correct 0 ms 1864 KB Output is correct
9 Correct 0 ms 1864 KB Output is correct
10 Correct 0 ms 1864 KB Output is correct
11 Correct 0 ms 1864 KB Output is correct
12 Correct 0 ms 1864 KB Output is correct
13 Correct 0 ms 1864 KB Output is correct
14 Correct 0 ms 1864 KB Output is correct
15 Correct 0 ms 1864 KB Output is correct
16 Correct 0 ms 1864 KB Output is correct
17 Correct 0 ms 1864 KB Output is correct
18 Correct 0 ms 1864 KB Output is correct
19 Correct 0 ms 1864 KB Output is correct
20 Correct 0 ms 1864 KB Output is correct
21 Correct 0 ms 1864 KB Output is correct
22 Correct 0 ms 1864 KB Output is correct
23 Correct 0 ms 1864 KB Output is correct
24 Correct 0 ms 1864 KB Output is correct
25 Correct 0 ms 1864 KB Output is correct
26 Correct 0 ms 1864 KB Output is correct
27 Correct 0 ms 1864 KB Output is correct

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 1864 KB Output is correct
2 Correct 34 ms 1864 KB Output is correct
3 Correct 34 ms 1864 KB Output is correct
4 Correct 34 ms 1864 KB Output is correct
5 Correct 29 ms 1864 KB Output is correct
6 Correct 34 ms 1864 KB Output is correct
7 Correct 32 ms 1864 KB Output is correct
8 Correct 22 ms 1864 KB Output is correct
9 Correct 11 ms 1864 KB Output is correct
10 Correct 9 ms 1864 KB Output is correct
11 Correct 27 ms 1864 KB Output is correct
12 Correct 27 ms 1864 KB Output is correct
13 Correct 22 ms 1864 KB Output is correct
14 Correct 26 ms 1864 KB Output is correct
15 Correct 26 ms 1864 KB Output is correct
16 Correct 27 ms 1864 KB Output is correct
17 Correct 31 ms 1864 KB Output is correct
18 Correct 16 ms 1864 KB Output is correct
19 Correct 32 ms 1864 KB Output is correct
20 Correct 0 ms 1864 KB Output is correct
21 Correct 0 ms 1864 KB Output is correct
22 Correct 22 ms 1864 KB Output is correct
23 Correct 16 ms 1864 KB Output is correct
24 Correct 21 ms 1864 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 1864 KB Output is correct
2 Correct 29 ms 1864 KB Output is correct
3 Correct 25 ms 1864 KB Output is correct
4 Correct 28 ms 1864 KB Output is correct
5 Correct 29 ms 1864 KB Output is correct
6 Correct 29 ms 1864 KB Output is correct
7 Correct 29 ms 1864 KB Output is correct
8 Correct 29 ms 1864 KB Output is correct
9 Correct 17 ms 1864 KB Output is correct
10 Correct 8 ms 1864 KB Output is correct
11 Correct 24 ms 1864 KB Output is correct
12 Correct 21 ms 1864 KB Output is correct
13 Correct 23 ms 1864 KB Output is correct
14 Correct 22 ms 1864 KB Output is correct
15 Correct 21 ms 1864 KB Output is correct
16 Correct 27 ms 1864 KB Output is correct
17 Correct 32 ms 1864 KB Output is correct
18 Correct 18 ms 1864 KB Output is correct
19 Correct 26 ms 1864 KB Output is correct
20 Correct 21 ms 1864 KB Output is correct