#include "peru.h"
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 2e6 + 5e5 + 5;
const int mod = 1e9 + 7;
int Add(int x, int y)
{
return x + y >= mod ? x + y - mod : x + y;
}
int Mul(int x, int y)
{
return 1ll * x * y % mod;
}
long long dp[MAXN], arr[MAXN];
int solve(int n, int k, int* v)
{
for(int i = 1; i <= n; i++)
{
arr[i] = v[i - 1];
}
dp[0] = 0;
deque <int> Max;
deque <int> DP;
for(int i = 1; i <= n; i++)
{
while(!Max.empty() and arr[Max.back()] <= arr[i])
{
Max.pop_back();
DP.pop_back();
}
int curdp = Max.empty() ? max(0, i - k) : Max.back();
while(!Max.empty() and dp[DP.front()] + arr[Max.front()] >= dp[curdp] + arr[i])
{
Max.pop_front();
DP.pop_front();
}
Max.push_back(i);
DP.push_back(curdp);
while(!DP.empty() and DP.front() < i - k)
{
if(Max.front() == DP.front() + 1)
{
Max.pop_back();
DP.pop_back();
}
else
{
DP.front() = i - k;
}
}
dp[i] = arr[Max.front()] + dp[DP.front()];
}
int ans = 0, cur = 1;
for(int i = n; i >= 1; i--)
{
ans = Add(ans, Mul(dp[i], cur));
cur = Mul(cur, 23);
}
return ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |