답안 #13973

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
13973	2015-04-24T17:14:10 Z	kriii	정전 (OJUZ10_blackout)	C++14	100 / 100	51 ms	1668 KB

blackout

#include <stdio.h>
#include <algorithm>
using namespace std;

int N,L,X[150005];

int main()
{
	scanf ("%d %d",&N,&L);
	for (int i=0;i<N;i++) scanf ("%d",&X[i]);
	sort(X,X+N);

	int al = 0x80000000, bl = 0x80000000;
	long long ans = 0;
	for (int i=0;i<N;i++){
		if (i % 2){
			int s = X[i] - L;
			if (al >= s) s = al;
			if (s <= bl) ans += bl - s;
			al = X[i] + L;
		}
		else{
			int s = X[i] - L;
			if (bl >= s) s = bl;
			if (s <= al) ans += al - s;
			bl = X[i] + L;
		}
	}
	printf ("%lld\n",ans);

	return 0;
}

Subtask #1

10.0 / 10.0

#	결과	실행 시간	메모리	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

Subtask #2

20.0 / 20.0

#	결과	실행 시간	메모리	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

Subtask #3

30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	20 ms	1668 KB	Output is correct
2	Correct	0 ms	1668 KB	Output is correct
3	Correct	32 ms	1668 KB	Output is correct
4	Correct	49 ms	1668 KB	Output is correct
5	Correct	41 ms	1668 KB	Output is correct
6	Correct	23 ms	1668 KB	Output is correct
7	Correct	31 ms	1668 KB	Output is correct
8	Correct	28 ms	1668 KB	Output is correct

Subtask #4

40.0 / 40.0

#	결과	실행 시간	메모리	Grader output
1	Correct	38 ms	1668 KB	Output is correct
2	Correct	50 ms	1668 KB	Output is correct
3	Correct	35 ms	1668 KB	Output is correct
4	Correct	23 ms	1668 KB	Output is correct
5	Correct	51 ms	1668 KB	Output is correct
6	Correct	38 ms	1668 KB	Output is correct
7	Correct	39 ms	1668 KB	Output is correct
8	Correct	34 ms	1668 KB	Output is correct
9	Correct	43 ms	1668 KB	Output is correct
10	Correct	9 ms	1668 KB	Output is correct
11	Correct	45 ms	1668 KB	Output is correct
12	Correct	33 ms	1668 KB	Output is correct
13	Correct	1 ms	1668 KB	Output is correct
14	Correct	30 ms	1668 KB	Output is correct
15	Correct	23 ms	1668 KB	Output is correct