Submission #15285

#	Time	Username	Problem	Language	Result	Execution time	Memory
15285		ggoh	달리는 게임 (kriii3_E)	C++98	26 / 70	1000 ms	32332 KiB

E

#include<cstdio>
#include<algorithm>
#include<vector>
#include<cmath>
long long a,i,j,m,M,dp[1000006],x[1000006],p[1000006],b[1000006];
main()
{
	scanf("%lld",&a);
	for(i=1;i<=a;i++)scanf("%lld",&x[i]);
	for(i=1;i<=a;i++)p[i]=p[i-1]+i*x[i],b[i]=b[i-1]+x[i];
	dp[0]=0;
	for(i=1;i<=a+1;i++)
	{
		M=-1e18;
		for(j=i-1;j>=0;j--)
		{
			M=std::max(M,dp[j]-j*(b[i-1]-b[j])-p[j]);
		}
		dp[i]=M+p[i-1];
		m=std::max(dp[i],m);
	}
	printf("%lld",m);
}

• Subtask 1: 26 / 26
• Subtask 2: 0 / 44