#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define ll long long
#define mp(x, y) make_pair(x, y)
#define sz(v) ((int) (v).size())
#define all(v) (v).begin(), (v).end()
#define MASK(i) (1LL << (i))
#define BIT(x, y) (((x) >> (y)) & 1)
#define pb push_back
#define heap priority_queue
#define max_rng *max_element
#define min_rng *min_element
#define rep(i, n) for(int i = 1, _n = (n); i <= _n; ++i)
#define forn(i, a, b) for(int i = (a), _b = (b); i <= _b; ++i)
#define ford(i, a, b) for(int i = (a), _b = (b); i >= _b; --i)
template <class X, class Y>
inline bool maximize(X &x, Y y) {
return (x < y ? x = y, true : false);
}
template <class X, class Y>
inline bool minimize(X &x, Y y) {
return (x > y ? x = y, true : false);
}
template <class X>
inline void compress(vector<X> &a) {
sort(all(a));
a.resize(unique(all(a)) - a.begin());
}
int ctz(ll x) { return __builtin_ctzll(x); }
int lg(ll x) { return 63 - __builtin_clzll(x); }
int popcount(ll x) { return __builtin_popcount(x); }
mt19937_64 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
ll rand(ll l, ll r) {
return l + abs((ll) rng()) % (r - l + 1);
}
const ll oo = (ll) 1e18 + 5;
const int inf = (ll) 1e9 + 7, mod = (ll) 1e9 + 7;
const int N = 3e5 + 5, LOG = 30;
void add(int &x, int y) { x += y; if (x >= mod) x -= mod; }
void sub(int &x, int y) { x -= y; if (x < 0) x += mod; }
int n, k;
ll a[N];
ll f[N][105];
int main(void) {
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
cin >> n >> k;
rep(i, n) cin >> a[i];
memset(f, 0x3f, sizeof (f));
f[0][1] = 0;
forn(i, 1, n) f[i][1] = max(f[i-1][1], a[i]);
forn(j, 2, k) {
vector<pair<ll, int>> st;
forn(i, j, n) {
ll res = f[i-1][j-1];
while (sz(st) && a[st.back().second] <= a[i]) {
minimize(res, st.back().first);
st.pop_back();
}
f[i][j] = min(f[sz(st) ? st.back().second : 0][j], res + a[i]);
st.pb({res, i});
}
}
cout << f[n][k];
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
124 ms |
246864 KB |
Output is correct |
2 |
Correct |
125 ms |
247020 KB |
Output is correct |
3 |
Correct |
122 ms |
246884 KB |
Output is correct |
4 |
Correct |
124 ms |
246864 KB |
Output is correct |
5 |
Correct |
118 ms |
246864 KB |
Output is correct |
6 |
Correct |
128 ms |
246860 KB |
Output is correct |
7 |
Correct |
122 ms |
246928 KB |
Output is correct |
8 |
Correct |
138 ms |
247000 KB |
Output is correct |
9 |
Correct |
125 ms |
246800 KB |
Output is correct |
10 |
Correct |
118 ms |
246924 KB |
Output is correct |
11 |
Correct |
123 ms |
246864 KB |
Output is correct |
12 |
Correct |
121 ms |
246868 KB |
Output is correct |
13 |
Correct |
138 ms |
246996 KB |
Output is correct |
14 |
Correct |
122 ms |
246808 KB |
Output is correct |
15 |
Correct |
140 ms |
246840 KB |
Output is correct |
16 |
Correct |
117 ms |
246868 KB |
Output is correct |
17 |
Correct |
124 ms |
246816 KB |
Output is correct |
18 |
Correct |
121 ms |
247000 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
109 ms |
246864 KB |
Output is correct |
2 |
Correct |
112 ms |
246852 KB |
Output is correct |
3 |
Correct |
107 ms |
246868 KB |
Output is correct |
4 |
Correct |
118 ms |
246864 KB |
Output is correct |
5 |
Correct |
109 ms |
246868 KB |
Output is correct |
6 |
Correct |
110 ms |
246864 KB |
Output is correct |
7 |
Correct |
118 ms |
246864 KB |
Output is correct |
8 |
Correct |
124 ms |
246864 KB |
Output is correct |
9 |
Correct |
118 ms |
246868 KB |
Output is correct |
10 |
Correct |
115 ms |
246868 KB |
Output is correct |
11 |
Correct |
107 ms |
246868 KB |
Output is correct |
12 |
Correct |
115 ms |
246912 KB |
Output is correct |
13 |
Correct |
119 ms |
246796 KB |
Output is correct |
14 |
Correct |
109 ms |
246992 KB |
Output is correct |
15 |
Correct |
104 ms |
246928 KB |
Output is correct |
16 |
Correct |
123 ms |
246868 KB |
Output is correct |
17 |
Correct |
106 ms |
246868 KB |
Output is correct |
18 |
Correct |
126 ms |
246780 KB |
Output is correct |
19 |
Correct |
116 ms |
246864 KB |
Output is correct |
20 |
Correct |
124 ms |
246864 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
124 ms |
246864 KB |
Output is correct |
2 |
Correct |
125 ms |
247020 KB |
Output is correct |
3 |
Correct |
122 ms |
246884 KB |
Output is correct |
4 |
Correct |
124 ms |
246864 KB |
Output is correct |
5 |
Correct |
118 ms |
246864 KB |
Output is correct |
6 |
Correct |
128 ms |
246860 KB |
Output is correct |
7 |
Correct |
122 ms |
246928 KB |
Output is correct |
8 |
Correct |
138 ms |
247000 KB |
Output is correct |
9 |
Correct |
125 ms |
246800 KB |
Output is correct |
10 |
Correct |
118 ms |
246924 KB |
Output is correct |
11 |
Correct |
123 ms |
246864 KB |
Output is correct |
12 |
Correct |
121 ms |
246868 KB |
Output is correct |
13 |
Correct |
138 ms |
246996 KB |
Output is correct |
14 |
Correct |
122 ms |
246808 KB |
Output is correct |
15 |
Correct |
140 ms |
246840 KB |
Output is correct |
16 |
Correct |
117 ms |
246868 KB |
Output is correct |
17 |
Correct |
124 ms |
246816 KB |
Output is correct |
18 |
Correct |
121 ms |
247000 KB |
Output is correct |
19 |
Correct |
109 ms |
246864 KB |
Output is correct |
20 |
Correct |
112 ms |
246852 KB |
Output is correct |
21 |
Correct |
107 ms |
246868 KB |
Output is correct |
22 |
Correct |
118 ms |
246864 KB |
Output is correct |
23 |
Correct |
109 ms |
246868 KB |
Output is correct |
24 |
Correct |
110 ms |
246864 KB |
Output is correct |
25 |
Correct |
118 ms |
246864 KB |
Output is correct |
26 |
Correct |
124 ms |
246864 KB |
Output is correct |
27 |
Correct |
118 ms |
246868 KB |
Output is correct |
28 |
Correct |
115 ms |
246868 KB |
Output is correct |
29 |
Correct |
107 ms |
246868 KB |
Output is correct |
30 |
Correct |
115 ms |
246912 KB |
Output is correct |
31 |
Correct |
119 ms |
246796 KB |
Output is correct |
32 |
Correct |
109 ms |
246992 KB |
Output is correct |
33 |
Correct |
104 ms |
246928 KB |
Output is correct |
34 |
Correct |
123 ms |
246868 KB |
Output is correct |
35 |
Correct |
106 ms |
246868 KB |
Output is correct |
36 |
Correct |
126 ms |
246780 KB |
Output is correct |
37 |
Correct |
116 ms |
246864 KB |
Output is correct |
38 |
Correct |
124 ms |
246864 KB |
Output is correct |
39 |
Correct |
122 ms |
246864 KB |
Output is correct |
40 |
Correct |
119 ms |
246840 KB |
Output is correct |
41 |
Correct |
118 ms |
246936 KB |
Output is correct |
42 |
Correct |
115 ms |
247012 KB |
Output is correct |
43 |
Correct |
104 ms |
246980 KB |
Output is correct |
44 |
Correct |
108 ms |
246996 KB |
Output is correct |
45 |
Correct |
112 ms |
246864 KB |
Output is correct |
46 |
Correct |
107 ms |
246868 KB |
Output is correct |
47 |
Correct |
108 ms |
246868 KB |
Output is correct |
48 |
Correct |
120 ms |
247124 KB |
Output is correct |
49 |
Correct |
118 ms |
246876 KB |
Output is correct |
50 |
Correct |
116 ms |
246864 KB |
Output is correct |
51 |
Correct |
118 ms |
246864 KB |
Output is correct |
52 |
Correct |
121 ms |
246864 KB |
Output is correct |
53 |
Correct |
118 ms |
246868 KB |
Output is correct |
54 |
Correct |
126 ms |
246972 KB |
Output is correct |
55 |
Correct |
121 ms |
246900 KB |
Output is correct |
56 |
Correct |
119 ms |
246864 KB |
Output is correct |
57 |
Correct |
119 ms |
247024 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
124 ms |
246864 KB |
Output is correct |
2 |
Correct |
125 ms |
247020 KB |
Output is correct |
3 |
Correct |
122 ms |
246884 KB |
Output is correct |
4 |
Correct |
124 ms |
246864 KB |
Output is correct |
5 |
Correct |
118 ms |
246864 KB |
Output is correct |
6 |
Correct |
128 ms |
246860 KB |
Output is correct |
7 |
Correct |
122 ms |
246928 KB |
Output is correct |
8 |
Correct |
138 ms |
247000 KB |
Output is correct |
9 |
Correct |
125 ms |
246800 KB |
Output is correct |
10 |
Correct |
118 ms |
246924 KB |
Output is correct |
11 |
Correct |
123 ms |
246864 KB |
Output is correct |
12 |
Correct |
121 ms |
246868 KB |
Output is correct |
13 |
Correct |
138 ms |
246996 KB |
Output is correct |
14 |
Correct |
122 ms |
246808 KB |
Output is correct |
15 |
Correct |
140 ms |
246840 KB |
Output is correct |
16 |
Correct |
117 ms |
246868 KB |
Output is correct |
17 |
Correct |
124 ms |
246816 KB |
Output is correct |
18 |
Correct |
121 ms |
247000 KB |
Output is correct |
19 |
Correct |
109 ms |
246864 KB |
Output is correct |
20 |
Correct |
112 ms |
246852 KB |
Output is correct |
21 |
Correct |
107 ms |
246868 KB |
Output is correct |
22 |
Correct |
118 ms |
246864 KB |
Output is correct |
23 |
Correct |
109 ms |
246868 KB |
Output is correct |
24 |
Correct |
110 ms |
246864 KB |
Output is correct |
25 |
Correct |
118 ms |
246864 KB |
Output is correct |
26 |
Correct |
124 ms |
246864 KB |
Output is correct |
27 |
Correct |
118 ms |
246868 KB |
Output is correct |
28 |
Correct |
115 ms |
246868 KB |
Output is correct |
29 |
Correct |
107 ms |
246868 KB |
Output is correct |
30 |
Correct |
115 ms |
246912 KB |
Output is correct |
31 |
Correct |
119 ms |
246796 KB |
Output is correct |
32 |
Correct |
109 ms |
246992 KB |
Output is correct |
33 |
Correct |
104 ms |
246928 KB |
Output is correct |
34 |
Correct |
123 ms |
246868 KB |
Output is correct |
35 |
Correct |
106 ms |
246868 KB |
Output is correct |
36 |
Correct |
126 ms |
246780 KB |
Output is correct |
37 |
Correct |
116 ms |
246864 KB |
Output is correct |
38 |
Correct |
124 ms |
246864 KB |
Output is correct |
39 |
Correct |
122 ms |
246864 KB |
Output is correct |
40 |
Correct |
119 ms |
246840 KB |
Output is correct |
41 |
Correct |
118 ms |
246936 KB |
Output is correct |
42 |
Correct |
115 ms |
247012 KB |
Output is correct |
43 |
Correct |
104 ms |
246980 KB |
Output is correct |
44 |
Correct |
108 ms |
246996 KB |
Output is correct |
45 |
Correct |
112 ms |
246864 KB |
Output is correct |
46 |
Correct |
107 ms |
246868 KB |
Output is correct |
47 |
Correct |
108 ms |
246868 KB |
Output is correct |
48 |
Correct |
120 ms |
247124 KB |
Output is correct |
49 |
Correct |
118 ms |
246876 KB |
Output is correct |
50 |
Correct |
116 ms |
246864 KB |
Output is correct |
51 |
Correct |
118 ms |
246864 KB |
Output is correct |
52 |
Correct |
121 ms |
246864 KB |
Output is correct |
53 |
Correct |
118 ms |
246868 KB |
Output is correct |
54 |
Correct |
126 ms |
246972 KB |
Output is correct |
55 |
Correct |
121 ms |
246900 KB |
Output is correct |
56 |
Correct |
119 ms |
246864 KB |
Output is correct |
57 |
Correct |
119 ms |
247024 KB |
Output is correct |
58 |
Correct |
132 ms |
246964 KB |
Output is correct |
59 |
Correct |
125 ms |
247632 KB |
Output is correct |
60 |
Correct |
129 ms |
247652 KB |
Output is correct |
61 |
Correct |
174 ms |
247444 KB |
Output is correct |
62 |
Correct |
286 ms |
248400 KB |
Output is correct |
63 |
Correct |
136 ms |
248400 KB |
Output is correct |
64 |
Correct |
195 ms |
248300 KB |
Output is correct |
65 |
Correct |
114 ms |
246864 KB |
Output is correct |
66 |
Correct |
125 ms |
247120 KB |
Output is correct |
67 |
Correct |
122 ms |
246912 KB |
Output is correct |
68 |
Correct |
127 ms |
246840 KB |
Output is correct |
69 |
Correct |
116 ms |
246860 KB |
Output is correct |
70 |
Correct |
124 ms |
246976 KB |
Output is correct |
71 |
Correct |
136 ms |
247120 KB |
Output is correct |
72 |
Correct |
119 ms |
247104 KB |
Output is correct |
73 |
Correct |
129 ms |
247120 KB |
Output is correct |
74 |
Correct |
125 ms |
247660 KB |
Output is correct |
75 |
Correct |
131 ms |
247632 KB |
Output is correct |
76 |
Correct |
174 ms |
247632 KB |
Output is correct |
77 |
Correct |
280 ms |
248400 KB |
Output is correct |
78 |
Correct |
115 ms |
248388 KB |
Output is correct |
79 |
Correct |
188 ms |
248400 KB |
Output is correct |
80 |
Correct |
117 ms |
248272 KB |
Output is correct |
81 |
Correct |
129 ms |
248256 KB |
Output is correct |
82 |
Correct |
281 ms |
248248 KB |
Output is correct |
83 |
Correct |
114 ms |
246868 KB |
Output is correct |
84 |
Correct |
123 ms |
246864 KB |
Output is correct |
85 |
Correct |
148 ms |
247060 KB |
Output is correct |
86 |
Correct |
127 ms |
247120 KB |
Output is correct |
87 |
Correct |
127 ms |
247120 KB |
Output is correct |
88 |
Correct |
129 ms |
247468 KB |
Output is correct |
89 |
Correct |
131 ms |
248196 KB |
Output is correct |
90 |
Correct |
193 ms |
248184 KB |
Output is correct |
91 |
Correct |
352 ms |
250120 KB |
Output is correct |
92 |
Correct |
135 ms |
250036 KB |
Output is correct |
93 |
Correct |
234 ms |
250116 KB |
Output is correct |
94 |
Correct |
128 ms |
247120 KB |
Output is correct |
95 |
Correct |
135 ms |
246944 KB |
Output is correct |
96 |
Correct |
123 ms |
246876 KB |
Output is correct |
97 |
Correct |
122 ms |
246864 KB |
Output is correct |
98 |
Correct |
151 ms |
246972 KB |
Output is correct |
99 |
Correct |
117 ms |
246856 KB |
Output is correct |