#include <bits/stdc++.h>
using namespace std;
#define file ""
#define mp make_pair
#define fi first
#define se second
#define all(x) x.begin(), x.end()
#define getbit(x, i) (((x) >> (i)) & 1)
#define bit(x) (1LL << (x))
#define popcount __builtin_popcountll
mt19937_64 rd(chrono::steady_clock::now().time_since_epoch().count());
int rand(int l, int r) {
return l + rd() % (r - l + 1);
}
const int N = 1e5 + 5;
const int mod = (int)1e9 + 7; // 998244353;
const int lg = 25; // lg + 1
const int oo = 1e9;
const long long ooo = 1e18;
template<class X, class Y> bool mini(X &a, Y b) {
return a > b ? (a = b, true) : false;
}
template<class X, class Y> bool maxi(X &a, Y b) {
return a < b ? (a = b, true) : false;
}
void add(int &a, int b) {
a += b;
if (a >= mod) a -= mod;
if (a < 0) a += mod;
}
int n, m;
int a[N];
int f[105][N];
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
// freopen(file".inp", "r", stdin);
// freopen(file".out", "w", stdout);
cin >> n >> m;
for (int i = 1; i <= n; ++i)
cin >> a[i];
memset(f, 0x3f, sizeof f);
f[0][0] = 0;
for (int k = 1; k <= m; ++k) {
stack<pair<int, int> > st;
for (int i = k; i <= n; ++i) {
int res = f[k - 1][i - 1];
while (st.size() && a[st.top().se] <= a[i]) {
res = min(res, st.top().fi);
st.pop();
}
int j = st.size() ? st.top().se : 0;
f[k][i] = min(f[k][j], res + a[i]);
st.push(mp(res, i));
}
}
cout << f[m][n];
return 0;
}
/*
*/
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
7 ms |
41560 KB |
Output is correct |
2 |
Correct |
6 ms |
41560 KB |
Output is correct |
3 |
Correct |
5 ms |
41560 KB |
Output is correct |
4 |
Correct |
5 ms |
41564 KB |
Output is correct |
5 |
Correct |
6 ms |
41560 KB |
Output is correct |
6 |
Correct |
5 ms |
41560 KB |
Output is correct |
7 |
Correct |
5 ms |
41564 KB |
Output is correct |
8 |
Correct |
6 ms |
41560 KB |
Output is correct |
9 |
Correct |
5 ms |
41560 KB |
Output is correct |
10 |
Correct |
5 ms |
41560 KB |
Output is correct |
11 |
Correct |
5 ms |
41564 KB |
Output is correct |
12 |
Correct |
6 ms |
41560 KB |
Output is correct |
13 |
Correct |
5 ms |
41560 KB |
Output is correct |
14 |
Correct |
5 ms |
41560 KB |
Output is correct |
15 |
Correct |
5 ms |
41560 KB |
Output is correct |
16 |
Correct |
5 ms |
41560 KB |
Output is correct |
17 |
Correct |
5 ms |
41560 KB |
Output is correct |
18 |
Correct |
6 ms |
41564 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
41560 KB |
Output is correct |
2 |
Correct |
5 ms |
41560 KB |
Output is correct |
3 |
Correct |
5 ms |
41560 KB |
Output is correct |
4 |
Correct |
6 ms |
41560 KB |
Output is correct |
5 |
Correct |
5 ms |
41560 KB |
Output is correct |
6 |
Correct |
5 ms |
41560 KB |
Output is correct |
7 |
Correct |
5 ms |
41564 KB |
Output is correct |
8 |
Correct |
5 ms |
41560 KB |
Output is correct |
9 |
Correct |
6 ms |
41760 KB |
Output is correct |
10 |
Correct |
5 ms |
41560 KB |
Output is correct |
11 |
Correct |
5 ms |
41560 KB |
Output is correct |
12 |
Correct |
6 ms |
41560 KB |
Output is correct |
13 |
Correct |
6 ms |
41560 KB |
Output is correct |
14 |
Correct |
5 ms |
41560 KB |
Output is correct |
15 |
Correct |
5 ms |
41636 KB |
Output is correct |
16 |
Correct |
5 ms |
41560 KB |
Output is correct |
17 |
Correct |
6 ms |
41560 KB |
Output is correct |
18 |
Correct |
5 ms |
41560 KB |
Output is correct |
19 |
Correct |
5 ms |
41560 KB |
Output is correct |
20 |
Correct |
5 ms |
41560 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
7 ms |
41560 KB |
Output is correct |
2 |
Correct |
6 ms |
41560 KB |
Output is correct |
3 |
Correct |
5 ms |
41560 KB |
Output is correct |
4 |
Correct |
5 ms |
41564 KB |
Output is correct |
5 |
Correct |
6 ms |
41560 KB |
Output is correct |
6 |
Correct |
5 ms |
41560 KB |
Output is correct |
7 |
Correct |
5 ms |
41564 KB |
Output is correct |
8 |
Correct |
6 ms |
41560 KB |
Output is correct |
9 |
Correct |
5 ms |
41560 KB |
Output is correct |
10 |
Correct |
5 ms |
41560 KB |
Output is correct |
11 |
Correct |
5 ms |
41564 KB |
Output is correct |
12 |
Correct |
6 ms |
41560 KB |
Output is correct |
13 |
Correct |
5 ms |
41560 KB |
Output is correct |
14 |
Correct |
5 ms |
41560 KB |
Output is correct |
15 |
Correct |
5 ms |
41560 KB |
Output is correct |
16 |
Correct |
5 ms |
41560 KB |
Output is correct |
17 |
Correct |
5 ms |
41560 KB |
Output is correct |
18 |
Correct |
6 ms |
41564 KB |
Output is correct |
19 |
Correct |
5 ms |
41560 KB |
Output is correct |
20 |
Correct |
5 ms |
41560 KB |
Output is correct |
21 |
Correct |
5 ms |
41560 KB |
Output is correct |
22 |
Correct |
6 ms |
41560 KB |
Output is correct |
23 |
Correct |
5 ms |
41560 KB |
Output is correct |
24 |
Correct |
5 ms |
41560 KB |
Output is correct |
25 |
Correct |
5 ms |
41564 KB |
Output is correct |
26 |
Correct |
5 ms |
41560 KB |
Output is correct |
27 |
Correct |
6 ms |
41760 KB |
Output is correct |
28 |
Correct |
5 ms |
41560 KB |
Output is correct |
29 |
Correct |
5 ms |
41560 KB |
Output is correct |
30 |
Correct |
6 ms |
41560 KB |
Output is correct |
31 |
Correct |
6 ms |
41560 KB |
Output is correct |
32 |
Correct |
5 ms |
41560 KB |
Output is correct |
33 |
Correct |
5 ms |
41636 KB |
Output is correct |
34 |
Correct |
5 ms |
41560 KB |
Output is correct |
35 |
Correct |
6 ms |
41560 KB |
Output is correct |
36 |
Correct |
5 ms |
41560 KB |
Output is correct |
37 |
Correct |
5 ms |
41560 KB |
Output is correct |
38 |
Correct |
5 ms |
41560 KB |
Output is correct |
39 |
Correct |
6 ms |
41560 KB |
Output is correct |
40 |
Correct |
5 ms |
41560 KB |
Output is correct |
41 |
Correct |
5 ms |
41564 KB |
Output is correct |
42 |
Correct |
6 ms |
41820 KB |
Output is correct |
43 |
Correct |
5 ms |
41560 KB |
Output is correct |
44 |
Correct |
5 ms |
41560 KB |
Output is correct |
45 |
Correct |
5 ms |
41560 KB |
Output is correct |
46 |
Correct |
5 ms |
41560 KB |
Output is correct |
47 |
Correct |
5 ms |
41560 KB |
Output is correct |
48 |
Correct |
5 ms |
41560 KB |
Output is correct |
49 |
Correct |
5 ms |
41560 KB |
Output is correct |
50 |
Correct |
5 ms |
41560 KB |
Output is correct |
51 |
Correct |
6 ms |
41560 KB |
Output is correct |
52 |
Correct |
5 ms |
41564 KB |
Output is correct |
53 |
Correct |
5 ms |
41560 KB |
Output is correct |
54 |
Correct |
5 ms |
41560 KB |
Output is correct |
55 |
Correct |
5 ms |
41560 KB |
Output is correct |
56 |
Correct |
5 ms |
41560 KB |
Output is correct |
57 |
Correct |
5 ms |
41560 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
7 ms |
41560 KB |
Output is correct |
2 |
Correct |
6 ms |
41560 KB |
Output is correct |
3 |
Correct |
5 ms |
41560 KB |
Output is correct |
4 |
Correct |
5 ms |
41564 KB |
Output is correct |
5 |
Correct |
6 ms |
41560 KB |
Output is correct |
6 |
Correct |
5 ms |
41560 KB |
Output is correct |
7 |
Correct |
5 ms |
41564 KB |
Output is correct |
8 |
Correct |
6 ms |
41560 KB |
Output is correct |
9 |
Correct |
5 ms |
41560 KB |
Output is correct |
10 |
Correct |
5 ms |
41560 KB |
Output is correct |
11 |
Correct |
5 ms |
41564 KB |
Output is correct |
12 |
Correct |
6 ms |
41560 KB |
Output is correct |
13 |
Correct |
5 ms |
41560 KB |
Output is correct |
14 |
Correct |
5 ms |
41560 KB |
Output is correct |
15 |
Correct |
5 ms |
41560 KB |
Output is correct |
16 |
Correct |
5 ms |
41560 KB |
Output is correct |
17 |
Correct |
5 ms |
41560 KB |
Output is correct |
18 |
Correct |
6 ms |
41564 KB |
Output is correct |
19 |
Correct |
5 ms |
41560 KB |
Output is correct |
20 |
Correct |
5 ms |
41560 KB |
Output is correct |
21 |
Correct |
5 ms |
41560 KB |
Output is correct |
22 |
Correct |
6 ms |
41560 KB |
Output is correct |
23 |
Correct |
5 ms |
41560 KB |
Output is correct |
24 |
Correct |
5 ms |
41560 KB |
Output is correct |
25 |
Correct |
5 ms |
41564 KB |
Output is correct |
26 |
Correct |
5 ms |
41560 KB |
Output is correct |
27 |
Correct |
6 ms |
41760 KB |
Output is correct |
28 |
Correct |
5 ms |
41560 KB |
Output is correct |
29 |
Correct |
5 ms |
41560 KB |
Output is correct |
30 |
Correct |
6 ms |
41560 KB |
Output is correct |
31 |
Correct |
6 ms |
41560 KB |
Output is correct |
32 |
Correct |
5 ms |
41560 KB |
Output is correct |
33 |
Correct |
5 ms |
41636 KB |
Output is correct |
34 |
Correct |
5 ms |
41560 KB |
Output is correct |
35 |
Correct |
6 ms |
41560 KB |
Output is correct |
36 |
Correct |
5 ms |
41560 KB |
Output is correct |
37 |
Correct |
5 ms |
41560 KB |
Output is correct |
38 |
Correct |
5 ms |
41560 KB |
Output is correct |
39 |
Correct |
6 ms |
41560 KB |
Output is correct |
40 |
Correct |
5 ms |
41560 KB |
Output is correct |
41 |
Correct |
5 ms |
41564 KB |
Output is correct |
42 |
Correct |
6 ms |
41820 KB |
Output is correct |
43 |
Correct |
5 ms |
41560 KB |
Output is correct |
44 |
Correct |
5 ms |
41560 KB |
Output is correct |
45 |
Correct |
5 ms |
41560 KB |
Output is correct |
46 |
Correct |
5 ms |
41560 KB |
Output is correct |
47 |
Correct |
5 ms |
41560 KB |
Output is correct |
48 |
Correct |
5 ms |
41560 KB |
Output is correct |
49 |
Correct |
5 ms |
41560 KB |
Output is correct |
50 |
Correct |
5 ms |
41560 KB |
Output is correct |
51 |
Correct |
6 ms |
41560 KB |
Output is correct |
52 |
Correct |
5 ms |
41564 KB |
Output is correct |
53 |
Correct |
5 ms |
41560 KB |
Output is correct |
54 |
Correct |
5 ms |
41560 KB |
Output is correct |
55 |
Correct |
5 ms |
41560 KB |
Output is correct |
56 |
Correct |
5 ms |
41560 KB |
Output is correct |
57 |
Correct |
5 ms |
41560 KB |
Output is correct |
58 |
Correct |
8 ms |
41560 KB |
Output is correct |
59 |
Correct |
8 ms |
41816 KB |
Output is correct |
60 |
Correct |
11 ms |
41816 KB |
Output is correct |
61 |
Correct |
41 ms |
41816 KB |
Output is correct |
62 |
Correct |
110 ms |
42620 KB |
Output is correct |
63 |
Correct |
15 ms |
42588 KB |
Output is correct |
64 |
Correct |
56 ms |
42584 KB |
Output is correct |
65 |
Correct |
5 ms |
41564 KB |
Output is correct |
66 |
Correct |
5 ms |
41560 KB |
Output is correct |
67 |
Correct |
5 ms |
41564 KB |
Output is correct |
68 |
Correct |
6 ms |
41560 KB |
Output is correct |
69 |
Correct |
5 ms |
41560 KB |
Output is correct |
70 |
Correct |
6 ms |
41692 KB |
Output is correct |
71 |
Correct |
18 ms |
41564 KB |
Output is correct |
72 |
Correct |
6 ms |
41560 KB |
Output is correct |
73 |
Correct |
9 ms |
41560 KB |
Output is correct |
74 |
Correct |
9 ms |
41816 KB |
Output is correct |
75 |
Correct |
12 ms |
41820 KB |
Output is correct |
76 |
Correct |
51 ms |
41820 KB |
Output is correct |
77 |
Correct |
138 ms |
42572 KB |
Output is correct |
78 |
Correct |
15 ms |
42584 KB |
Output is correct |
79 |
Correct |
69 ms |
42588 KB |
Output is correct |
80 |
Correct |
13 ms |
42576 KB |
Output is correct |
81 |
Correct |
24 ms |
42584 KB |
Output is correct |
82 |
Correct |
143 ms |
42584 KB |
Output is correct |
83 |
Correct |
5 ms |
41560 KB |
Output is correct |
84 |
Correct |
5 ms |
41560 KB |
Output is correct |
85 |
Correct |
15 ms |
41744 KB |
Output is correct |
86 |
Correct |
6 ms |
41560 KB |
Output is correct |
87 |
Correct |
8 ms |
41560 KB |
Output is correct |
88 |
Correct |
8 ms |
42072 KB |
Output is correct |
89 |
Correct |
11 ms |
41996 KB |
Output is correct |
90 |
Correct |
42 ms |
42072 KB |
Output is correct |
91 |
Correct |
119 ms |
42912 KB |
Output is correct |
92 |
Correct |
14 ms |
42840 KB |
Output is correct |
93 |
Correct |
60 ms |
42908 KB |
Output is correct |
94 |
Correct |
6 ms |
41560 KB |
Output is correct |
95 |
Correct |
15 ms |
41560 KB |
Output is correct |
96 |
Correct |
5 ms |
41560 KB |
Output is correct |
97 |
Correct |
5 ms |
41560 KB |
Output is correct |
98 |
Correct |
5 ms |
41560 KB |
Output is correct |
99 |
Correct |
6 ms |
41560 KB |
Output is correct |