Submission #848967

#	Time	Username	Problem	Language	Result	Execution time	Memory
848967		ssense	Homecoming (BOI18_homecoming)	C++14	0 / 100	25 ms	13648 KiB

homecoming

#include <bits/stdc++.h>
 
using namespace std;
 
#include "homecoming.h"
 
long long solve(int N, int K, int *A, int *B) {
 
	long long cost = 0, ans = 0;
	cost = 0;
	for (int i = 0; i < K; i++)
		cost += B[i];
 
	long long take = A[0] - cost, leave = 0LL;
 
	ans = max(ans, take);
	ans = max(ans, leave);
 
	for (int i = 1; i < N; i++) {
		
		cost -= B[i - 1];
		int new_cost = B[(i + K - 1) % N];
 
		long long now_take = max(take, leave - cost) + A[i] - new_cost;
		long long now_leave = max(take, leave);
 
		cost += new_cost;
 
		take = now_take;
		leave = now_leave;
 
		ans = max(ans, take);
		ans = max(ans, leave);
	}
 
	return ans;
}

• Subtask 1: 0 / 13
• Subtask 2: 0 / 18
• Subtask 3: 0 / 31
• Subtask 4: 0 / 38