Submission #14395

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
14395	2015-05-14 01:30:06	pjsdream	정전 (OJUZ10_blackout)	C++98	100 / 100	51 ms	2256 KiB

blackout

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#include <stdio.h>
#include <algorithm>
long long a[150005], ans;
int main(){
  int n; long long L;
  scanf("%d %lld", &n, &L);
  for (int i = 0; i < n; i++) scanf("%lld", &a[i]);
  std::sort(a, a + n);
  long long x = a[0] + L, s = a[0] - L;
  for (int i = 1; i < n; i++){
    if(a[i] - L > s) s = a[i] - L;
    if (s <= x){
      ans += (x - s);
      s = x;
    }
    x = a[i] + L;
  }
  printf("%lld", ans);
  return 0;
}
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 30 / 30
• Subtask 4: 40 / 40