#include <stdio.h>
#include <algorithm>
#define N_MAX 150000
#define INF 0x7fffffff
using namespace std;
int N, L, Light[N_MAX+1], Res;
int main(void) {
int i;
scanf("%d %d",&N,&L);
if(N==1) {
printf("0");
return 0;
}
for(i=1 ; i<=N ; i++) scanf("%d",&Light[i]);
sort(Light+1,Light+N+1);
if((long long)Light[1]-Light[2]+2*L>0) Res=(long long)Light[1]-Light[2]+2*L;
for(i=3 ; i<=N ; i++) {
if(Light[i-2]+L<Light[i]-L) {
if((long long)Light[i-1]-Light[i]+2*L>0) Res+=(long long)Light[i-1]-Light[i]+2*L;
}
else Res+=Light[i-1]-Light[i-2];
}
printf("%d",Res);
return 0;
}
# |
Verdict |
Execution time |
Memory |
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 |
Incorrect |
0 ms |
1668 KB |
Output isn't 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 |
# |
Verdict |
Execution time |
Memory |
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 |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
40 ms |
1668 KB |
Output is correct |
2 |
Correct |
16 ms |
1668 KB |
Output is correct |
3 |
Correct |
32 ms |
1668 KB |
Output is correct |
4 |
Correct |
51 ms |
1668 KB |
Output is correct |
5 |
Correct |
3 ms |
1668 KB |
Output is correct |
6 |
Correct |
40 ms |
1668 KB |
Output is correct |
7 |
Correct |
13 ms |
1668 KB |
Output is correct |
8 |
Correct |
25 ms |
1668 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
25 ms |
1668 KB |
Output is correct |
2 |
Correct |
0 ms |
1668 KB |
Output is correct |
3 |
Correct |
27 ms |
1668 KB |
Output is correct |
4 |
Correct |
51 ms |
1668 KB |
Output is correct |
5 |
Correct |
51 ms |
1668 KB |
Output is correct |
6 |
Correct |
52 ms |
1668 KB |
Output is correct |
7 |
Correct |
37 ms |
1668 KB |
Output is correct |
8 |
Correct |
20 ms |
1668 KB |
Output is correct |
9 |
Correct |
38 ms |
1668 KB |
Output is correct |
10 |
Incorrect |
50 ms |
1668 KB |
Output isn't correct |
11 |
Correct |
51 ms |
1668 KB |
Output is correct |
12 |
Correct |
31 ms |
1668 KB |
Output is correct |
13 |
Correct |
34 ms |
1668 KB |
Output is correct |
14 |
Correct |
13 ms |
1668 KB |
Output is correct |
15 |
Correct |
32 ms |
1668 KB |
Output is correct |