#include<cstdio>
#include<algorithm>
using namespace std;
const int MAX_N = 150050;
const int INF = -2100000000;
int n,k,a[MAX_N],covered = INF;
long long ans;
int front, rear;
void input() {
scanf("%d %d",&n,&k);
for(int i=0;i<n;i++) scanf("%d",&a[i]);
sort(a,a+n);
}
void solve() {
for(int i=0;i<n-1;i++) {
if(a[i+1]-a[i] >= 2*k) continue;
rear = a[i] + k;
if(rear <= covered) continue;
front = max(a[i+1] - k, covered);
ans += (long long)max(0, rear-front);
covered = rear;
}
printf("%lld\n",ans);
}
int main() {
input();
solve();
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
1668 KB |
Output is correct |
2 |
Correct |
0 ms |
1668 KB |
Output is correct |
3 |
Correct |
0 ms |
1668 KB |
Output is correct |
4 |
Correct |
0 ms |
1668 KB |
Output is correct |
5 |
Correct |
0 ms |
1668 KB |
Output is correct |
6 |
Correct |
0 ms |
1668 KB |
Output is correct |
7 |
Correct |
0 ms |
1668 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
1668 KB |
Output is correct |
2 |
Correct |
0 ms |
1668 KB |
Output is correct |
3 |
Correct |
0 ms |
1668 KB |
Output is correct |
4 |
Correct |
0 ms |
1668 KB |
Output is correct |
5 |
Correct |
0 ms |
1668 KB |
Output is correct |
6 |
Correct |
0 ms |
1668 KB |
Output is correct |
7 |
Correct |
0 ms |
1668 KB |
Output is correct |
8 |
Correct |
0 ms |
1668 KB |
Output is correct |
9 |
Correct |
0 ms |
1668 KB |
Output is correct |
10 |
Correct |
0 ms |
1668 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
27 ms |
1668 KB |
Output is correct |
2 |
Correct |
0 ms |
1668 KB |
Output is correct |
3 |
Correct |
48 ms |
1668 KB |
Output is correct |
4 |
Correct |
32 ms |
1668 KB |
Output is correct |
5 |
Correct |
43 ms |
1668 KB |
Output is correct |
6 |
Correct |
19 ms |
1668 KB |
Output is correct |
7 |
Correct |
42 ms |
1668 KB |
Output is correct |
8 |
Correct |
19 ms |
1668 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
38 ms |
1668 KB |
Output is correct |
2 |
Correct |
35 ms |
1668 KB |
Output is correct |
3 |
Correct |
42 ms |
1668 KB |
Output is correct |
4 |
Correct |
31 ms |
1668 KB |
Output is correct |
5 |
Correct |
0 ms |
1668 KB |
Output is correct |
6 |
Correct |
31 ms |
1668 KB |
Output is correct |
7 |
Correct |
38 ms |
1668 KB |
Output is correct |
8 |
Correct |
42 ms |
1668 KB |
Output is correct |
9 |
Correct |
51 ms |
1668 KB |
Output is correct |
10 |
Correct |
49 ms |
1668 KB |
Output is correct |
11 |
Correct |
33 ms |
1668 KB |
Output is correct |
12 |
Correct |
27 ms |
1668 KB |
Output is correct |
13 |
Correct |
19 ms |
1668 KB |
Output is correct |
14 |
Correct |
32 ms |
1668 KB |
Output is correct |
15 |
Correct |
25 ms |
1668 KB |
Output is correct |