Submission #14124

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
14124	2015-05-02T07:07:20 Z	ggoh	정전 (OJUZ10_blackout)	C++	100 / 100	49 ms	3584 KB

blackout

#include<cstdio>
#include<algorithm>
#include<vector>
#include<queue>
#include<cstring>
long long a,b,i,j,t,p,q,m,n,s,x[160001],y[160001];
main()
{
	scanf("%lld%lld",&a,&b);
	for(i=0;i<a;i++)
	{
		scanf("%lld",&x[i]);
	}
	std::sort(x,x+a);
	for(i=0;i<a-1;i++)
	{
		p=q=0;
		if(i-1>=0)
		{
			if(x[i]-x[i-1]<b)p=b-(x[i]-x[i-1]);
		}
		if(i+2<a)
		{
			if(x[i+2]-x[i+1]<b)q=b-(x[i+2]-x[i+1]);
		}
		if(p+q>=x[i+1]-x[i])s+=x[i+1]-x[i];
		else if(b>=x[i+1]-x[i])
		{
			s+=x[i+1]-x[i];
		}
		else if(2*b<=x[i+1]-x[i])s+=p+q;
		else
		{
			t=b*2-(x[i+1]-x[i]);
			m=x[i]+b-t;
			n=x[i]+b;
			p=p+x[i];
			q=x[i+1]-q;
			if(p<m&&n<q)
			{
				s+=(p-x[i]+x[i+1]-q+t);
			}
			else if(n<=p||q<=m)
			{
				s+=(p-x[i]+x[i+1]-q);
			}
			else if(m<=p&&q<=n)
			{
				s+=x[i+1]-x[i];
			}
			else if(m<=p&&p<=n)
			{
				s+=(n-x[i]+x[i+1]-q);
			}
			else if(m<=q&&q<=n)
			{
				s+=(p-x[i]+x[i+1]-m);
			}
		}
	}
	if(x[1]-x[0]<b)
	{
		s+=b-(x[1]-x[0]);
	}
	if(x[a-1]-x[a-2]<b)
	{
		s+=b-(x[a-1]-x[a-2]);
	}
	if(a==1)printf("0");
	else printf("%lld",s);
}

Subtask #1

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	3584 KB	Output is correct
2	Correct	0 ms	3584 KB	Output is correct
3	Correct	0 ms	3584 KB	Output is correct
4	Correct	0 ms	3584 KB	Output is correct
5	Correct	0 ms	3584 KB	Output is correct
6	Correct	0 ms	3584 KB	Output is correct
7	Correct	0 ms	3584 KB	Output is correct

Subtask #2

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	3584 KB	Output is correct
2	Correct	0 ms	3584 KB	Output is correct
3	Correct	0 ms	3584 KB	Output is correct
4	Correct	0 ms	3584 KB	Output is correct
5	Correct	0 ms	3584 KB	Output is correct
6	Correct	0 ms	3584 KB	Output is correct
7	Correct	0 ms	3584 KB	Output is correct
8	Correct	0 ms	3584 KB	Output is correct
9	Correct	0 ms	3584 KB	Output is correct
10	Correct	0 ms	3584 KB	Output is correct

Subtask #3

30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	47 ms	3584 KB	Output is correct
2	Correct	25 ms	3584 KB	Output is correct
3	Correct	0 ms	3584 KB	Output is correct
4	Correct	18 ms	3584 KB	Output is correct
5	Correct	30 ms	3584 KB	Output is correct
6	Correct	44 ms	3584 KB	Output is correct
7	Correct	31 ms	3584 KB	Output is correct
8	Correct	49 ms	3584 KB	Output is correct

Subtask #4

40.0 / 40.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	37 ms	3584 KB	Output is correct
2	Correct	37 ms	3584 KB	Output is correct
3	Correct	9 ms	3584 KB	Output is correct
4	Correct	17 ms	3584 KB	Output is correct
5	Correct	3 ms	3584 KB	Output is correct
6	Correct	31 ms	3584 KB	Output is correct
7	Correct	40 ms	3584 KB	Output is correct
8	Correct	41 ms	3584 KB	Output is correct
9	Correct	26 ms	3584 KB	Output is correct
10	Correct	49 ms	3584 KB	Output is correct
11	Correct	26 ms	3584 KB	Output is correct
12	Correct	35 ms	3584 KB	Output is correct
13	Correct	36 ms	3584 KB	Output is correct
14	Correct	24 ms	3584 KB	Output is correct
15	Correct	27 ms	3584 KB	Output is correct