| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 159700 |
2019-10-24T01:51:53 Z |
DrSwad |
K blocks (IZhO14_blocks) |
C++17 |
|
349 ms |
43000 KB |
#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include "debug.h"
#endif
typedef long long ll;
typedef pair<int, int> pii;
#define x first
#define y second
const int N = int(1e5) + 10;
const int K = 105;
const int INF = int(1e9);
int n, k;
int a[N];
int l[N];
int dp[K][N];
int st[N], st_len;
int main() {
#ifdef LOCAL
freopen("in", "r", stdin);
freopen("out", "w", stdout);
#endif
cin >> n >> k;
for (int i = 1; i <= n; i++) scanf("%d", &a[i]);
for (int i = 1; i <= n; i++) {
int at = i - 1;
while (at > 0 && a[at] < a[i]) at = l[at];
l[i] = at;
}
fill(&dp[0][0], &dp[K][0], INF);
dp[0][0] = 0;
for (int _k = 1; _k <= k; _k++) {
st_len = 0;
for (int i = 0; i < _k; i++) {
while (st_len > 0 && dp[_k - 1][st[st_len - 1]] >= dp[_k - 1][i]) st_len--;
st[st_len++] = i;
}
for (int i = _k; i <= n; i++) {
int at = lower_bound(st, st + st_len, l[i]) - st;
dp[_k][i] = min(a[i] + dp[_k - 1][st[at]], dp[_k][l[i]]);
while (st_len > 0 && dp[_k - 1][st[st_len - 1]] >= dp[_k - 1][i]) st_len--;
st[st_len++] = i;
}
}
cout << dp[k][n] << endl;
return 0;
}
Compilation message
blocks.cpp: In function 'int main()':
blocks.cpp:32:36: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
for (int i = 1; i <= n; i++) scanf("%d", &a[i]);
~~~~~^~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
39 ms |
41468 KB |
Output is correct |
| 2 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 3 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 4 |
Correct |
37 ms |
41464 KB |
Output is correct |
| 5 |
Correct |
38 ms |
41432 KB |
Output is correct |
| 6 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 7 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 8 |
Correct |
38 ms |
41492 KB |
Output is correct |
| 9 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 10 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 11 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 12 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 13 |
Correct |
38 ms |
41492 KB |
Output is correct |
| 14 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 15 |
Correct |
39 ms |
41364 KB |
Output is correct |
| 16 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 17 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 18 |
Correct |
38 ms |
41464 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
43 ms |
41492 KB |
Output is correct |
| 2 |
Correct |
37 ms |
41448 KB |
Output is correct |
| 3 |
Correct |
37 ms |
41464 KB |
Output is correct |
| 4 |
Correct |
38 ms |
41448 KB |
Output is correct |
| 5 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 6 |
Correct |
37 ms |
41464 KB |
Output is correct |
| 7 |
Correct |
37 ms |
41464 KB |
Output is correct |
| 8 |
Correct |
37 ms |
41464 KB |
Output is correct |
| 9 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 10 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 11 |
Correct |
37 ms |
41468 KB |
Output is correct |
| 12 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 13 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 14 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 15 |
Correct |
39 ms |
41464 KB |
Output is correct |
| 16 |
Correct |
44 ms |
41464 KB |
Output is correct |
| 17 |
Correct |
43 ms |
41464 KB |
Output is correct |
| 18 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 19 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 20 |
Correct |
38 ms |
41464 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
37 ms |
41464 KB |
Output is correct |
| 2 |
Correct |
37 ms |
41432 KB |
Output is correct |
| 3 |
Correct |
37 ms |
41456 KB |
Output is correct |
| 4 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 5 |
Correct |
37 ms |
41464 KB |
Output is correct |
| 6 |
Correct |
37 ms |
41464 KB |
Output is correct |
| 7 |
Correct |
39 ms |
41464 KB |
Output is correct |
| 8 |
Correct |
37 ms |
41464 KB |
Output is correct |
| 9 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 10 |
Correct |
37 ms |
41464 KB |
Output is correct |
| 11 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 12 |
Correct |
37 ms |
41464 KB |
Output is correct |
| 13 |
Correct |
38 ms |
41468 KB |
Output is correct |
| 14 |
Correct |
38 ms |
41436 KB |
Output is correct |
| 15 |
Correct |
38 ms |
41468 KB |
Output is correct |
| 16 |
Correct |
38 ms |
41468 KB |
Output is correct |
| 17 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 18 |
Correct |
38 ms |
41388 KB |
Output is correct |
| 19 |
Correct |
38 ms |
41336 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
45 ms |
41592 KB |
Output is correct |
| 2 |
Correct |
44 ms |
42104 KB |
Output is correct |
| 3 |
Correct |
52 ms |
42076 KB |
Output is correct |
| 4 |
Correct |
139 ms |
42188 KB |
Output is correct |
| 5 |
Correct |
349 ms |
43000 KB |
Output is correct |
| 6 |
Correct |
59 ms |
43000 KB |
Output is correct |
| 7 |
Correct |
185 ms |
43000 KB |
Output is correct |
| 8 |
Correct |
38 ms |
41492 KB |
Output is correct |
| 9 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 10 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 11 |
Correct |
38 ms |
41436 KB |
Output is correct |
| 12 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 13 |
Correct |
38 ms |
41500 KB |
Output is correct |
| 14 |
Correct |
59 ms |
41592 KB |
Output is correct |
| 15 |
Correct |
39 ms |
41596 KB |
Output is correct |
| 16 |
Correct |
45 ms |
41796 KB |
Output is correct |
| 17 |
Correct |
45 ms |
42104 KB |
Output is correct |
| 18 |
Correct |
50 ms |
42104 KB |
Output is correct |
| 19 |
Correct |
112 ms |
42104 KB |
Output is correct |
| 20 |
Correct |
250 ms |
42872 KB |
Output is correct |
| 21 |
Correct |
58 ms |
42872 KB |
Output is correct |
| 22 |
Correct |
141 ms |
42924 KB |
Output is correct |
| 23 |
Correct |
54 ms |
42872 KB |
Output is correct |
| 24 |
Correct |
70 ms |
42872 KB |
Output is correct |
| 25 |
Correct |
252 ms |
42944 KB |
Output is correct |
| 26 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 27 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 28 |
Correct |
44 ms |
41720 KB |
Output is correct |
| 29 |
Correct |
43 ms |
41592 KB |
Output is correct |
| 30 |
Correct |
41 ms |
41592 KB |
Output is correct |
| 31 |
Correct |
44 ms |
42104 KB |
Output is correct |
| 32 |
Correct |
46 ms |
42104 KB |
Output is correct |
| 33 |
Correct |
62 ms |
42076 KB |
Output is correct |
| 34 |
Correct |
103 ms |
42872 KB |
Output is correct |
| 35 |
Correct |
54 ms |
42872 KB |
Output is correct |
| 36 |
Correct |
76 ms |
42872 KB |
Output is correct |
| 37 |
Correct |
40 ms |
41592 KB |
Output is correct |
| 38 |
Correct |
64 ms |
41644 KB |
Output is correct |
| 39 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 40 |
Correct |
38 ms |
41464 KB |
Output is correct |
| 41 |
Correct |
37 ms |
41464 KB |
Output is correct |
| 42 |
Correct |
37 ms |
41464 KB |
Output is correct |
