Submission #18915

#	Time	Username	Problem	Language	Result	Execution time	Memory
18915		chan492811	정전 (OJUZ10_blackout)	C++98	100 / 100	50 ms	1668 KiB

blackout

#include <cstdio>
#include <algorithm>
using namespace std;

int n,l,ep,sep;
int arr[150010];
long long res;

int main(){
    int i,a,now;
    scanf("%d %d",&n,&l);
    ep=-21e8; sep=-21e8;
    for(i=0;i<n;i++) scanf("%d",&arr[i]); sort(arr,arr+n);
    for(i=0;i<n;i++){
        a=arr[i];
        if(a-l<=ep){
            now=max(sep,a-l);
            res+=max(0,ep-now);
            sep=ep;
        }
        ep=a+l;
    }
    printf("%lld",res);
    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 30 / 30
• Subtask 4: 40 / 40