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Submission #8020

# Submission time Handle Problem Language Result Execution time Memory
8020 2014-08-27T06:05:09 Z jhs7jhs 막대기 (KOI13_game) C++
100 / 100
 60 ms 5108 KB 
#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
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4336 KB Output is correct
2 Correct 0 ms 4336 KB Output is correct
3 Correct 0 ms 4336 KB Output is correct
4 Correct 0 ms 4336 KB Output is correct
5 Correct 0 ms 4336 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 4724 KB Output is correct
2 Correct 16 ms 4724 KB Output is correct
3 Correct 44 ms 5108 KB Output is correct
4 Correct 48 ms 5108 KB Output is correct
5 Correct 52 ms 5108 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4336 KB Output is correct
2 Correct 0 ms 4336 KB Output is correct
3 Correct 0 ms 4336 KB Output is correct
4 Correct 0 ms 4336 KB Output is correct
5 Correct 0 ms 4336 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 4336 KB Output is correct
2 Correct 0 ms 4336 KB Output is correct
3 Correct 0 ms 4336 KB Output is correct
4 Correct 0 ms 4336 KB Output is correct
5 Correct 0 ms 4336 KB Output is correct
6 Correct 0 ms 4336 KB Output is correct
7 Correct 0 ms 4336 KB Output is correct

Subtask #5
38.0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4336 KB Output is correct
2 Correct 8 ms 4336 KB Output is correct
3 Correct 28 ms 4724 KB Output is correct
4 Correct 60 ms 5108 KB Output is correct
5 Correct 60 ms 5108 KB Output is correct
6 Correct 56 ms 5108 KB Output is correct
7 Correct 52 ms 5108 KB Output is correct
8 Correct 56 ms 5108 KB Output is correct
9 Correct 4 ms 4336 KB Output is correct
10 Correct 4 ms 4336 KB Output is correct
11 Correct 60 ms 5108 KB Output is correct
12 Correct 52 ms 5108 KB Output is correct