Submission #13947

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
13947	2015-04-24 14:55:10	ainta	정전 (OJUZ10_blackout)	C++98	100 / 100	49 ms	1672 KiB

blackout

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#include<stdio.h>
#include<algorithm>
using namespace std;
int n, L, i, w[151000], ed, b, e;
long long Res;
int main(){
  scanf("%d%d", &n, &L);
  for (i = 1; i <= n; i++){
    scanf("%d", &w[i]);
  }
  sort(w + 1, w + n + 1);
  ed = -2100000000;
  for (i = 1; i < n; i++){
    if (w[i] + L < w[i + 1] - L)continue;
    b = w[i + 1] - L, e = w[i] + L;
    if (e <= ed)continue;
    if (ed < b)ed = b;
    Res += e - ed;
    ed = e;
  }
  printf("%lld\n", Res);
}
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 30 / 30
• Subtask 4: 40 / 40