Submission #14717

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
14717	2015-06-13 02:22:09	baneling100	정전 (OJUZ10_blackout)	C++98	100 / 100	51 ms	2256 KiB

blackout

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#include <stdio.h>
#include <algorithm>
#define N_MAX 150000
using namespace std;
long long N, L, Light[N_MAX+1], Res;
int main(void) {
    int i;
    scanf("%lld %lld",&N,&L);
    for(i=1 ; i<=N ; i++) scanf("%lld",&Light[i]);
    sort(Light+1,Light+N+1);
    if(N==1) {
        printf("0");
        return 0;
    }
    if(Light[1]-Light[2]+2*L>0) Res=Light[1]-Light[2]+2*L;
    for(i=3 ; i<=N ; i++) {
        if(Light[i-2]+L<Light[i]-L) {
            if(Light[i-1]-Light[i]+2*L>0) Res+=Light[i-1]-Light[i]+2*L;
        }
        else Res+=Light[i-1]-Light[i-2];
    }
    printf("%lld",Res);
    return 0;
}
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 30 / 30
• Subtask 4: 40 / 40