Submission #8020

#	Time	Username	Problem	Language	Result	Execution time	Memory
8020		jhs7jhs	막대기 (KOI13_game)	C++98	100 / 100	60 ms	5108 KiB

game

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

pair<int,int> a[100000];
vector<int> r;
int n,l;
long long rmax[100000]={0},dp[100000][2]={0},ans=0;
int main()
{
	int i,p;
	long long t;
	scanf("%d%d",&n,&l);
	for(i=0;i<n;i++){
		scanf("%d%d",&a[i].first,&a[i].second);
		r.push_back(a[i].second);
	}
	sort(r.begin(),r.end());
	sort(a,a+n);
	for(i=0;i<n;i++){
		if(i==0 || a[i].first!=a[i-1].first) t=0;
		dp[i][1] = t + (long long)(l + abs(a[i].first-a[i].second));
		p = lower_bound(r.begin(),r.end(),a[i].second) - r.begin();
		dp[i][0] = rmax[p] + (long long)(l + abs(a[i].first-a[i].second));
		if(rmax[p] < dp[i][1]) rmax[p] = dp[i][1];
		if(t<dp[i][0]) t=dp[i][0];
		if(ans < dp[i][0]) ans = dp[i][0];
		if(ans < dp[i][1]) ans = dp[i][1];
	}
	printf("%lld\n",ans);
	return 0;
}

• Subtask 1: 11 / 11
• Subtask 2: 13 / 13
• Subtask 3: 16 / 16
• Subtask 4: 22 / 22
• Subtask 5: 38 / 38