using namespace std ;
#include <bits/stdc++.h> /* #7th-Polygon */
typedef pair < int , int > IntInt ;
const int N = 1e5 + 7 ;
const int K = 100 + 7 ;
const int INF = 1e9 + 7 ;
unsigned int n , k , a[N] , dp[N][K] ;
int main()
{
ios::sync_with_stdio(false) ;
cout.tie(nullptr) ;
cin.tie(nullptr) ;
cin >> n >> k ;
for (int i = 1 ; i <= n ; ++i)
cin >> a[i] ;
for (int i = 1 ; i <= n ; ++i)
dp[i][1] = max(dp[i - 1][1] , a[i]) ;
for (int b = 2 ; b <= k ; ++b)
{
stack < IntInt > my_stack ;
for (int i = b ; i <= n ; ++i)
{
int min_dp = dp[i - 1][b - 1] ;
for ( ; my_stack.size() ; my_stack.pop())
{
if (a[my_stack.top().first] > a[i]) break ;
min_dp = min(min_dp , my_stack.top().second) ;
}
dp[i][b] = min(min_dp + a[i] , my_stack.size() ? dp[my_stack.top().first][b] : INF) ;
my_stack.emplace(i , min_dp) ;
}
}
cout << dp[n][k] << "\n" ;
return 0 ;
}
Compilation message
blocks.cpp: In function 'int main()':
blocks.cpp:18:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = 1 ; i <= n ; ++i)
~~^~~~
blocks.cpp:21:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = 1 ; i <= n ; ++i)
~~^~~~
blocks.cpp:23:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int b = 2 ; b <= k ; ++b)
~~^~~~
blocks.cpp:26:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = b ; i <= n ; ++i)
~~^~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| 3 |
Correct |
2 ms |
408 KB |
Output is correct |
| 4 |
Correct |
2 ms |
456 KB |
Output is correct |
| 5 |
Correct |
2 ms |
456 KB |
Output is correct |
| 6 |
Correct |
2 ms |
516 KB |
Output is correct |
| 7 |
Correct |
2 ms |
532 KB |
Output is correct |
| 8 |
Correct |
2 ms |
632 KB |
Output is correct |
| 9 |
Correct |
2 ms |
632 KB |
Output is correct |
| 10 |
Correct |
2 ms |
632 KB |
Output is correct |
| 11 |
Correct |
2 ms |
632 KB |
Output is correct |
| 12 |
Correct |
2 ms |
632 KB |
Output is correct |
| 13 |
Correct |
2 ms |
632 KB |
Output is correct |
| 14 |
Correct |
2 ms |
632 KB |
Output is correct |
| 15 |
Correct |
2 ms |
632 KB |
Output is correct |
| 16 |
Correct |
3 ms |
632 KB |
Output is correct |
| 17 |
Correct |
2 ms |
632 KB |
Output is correct |
| 18 |
Correct |
2 ms |
632 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
636 KB |
Output is correct |
| 2 |
Correct |
2 ms |
636 KB |
Output is correct |
| 3 |
Correct |
2 ms |
636 KB |
Output is correct |
| 4 |
Correct |
2 ms |
636 KB |
Output is correct |
| 5 |
Correct |
2 ms |
636 KB |
Output is correct |
| 6 |
Correct |
2 ms |
636 KB |
Output is correct |
| 7 |
Correct |
2 ms |
636 KB |
Output is correct |
| 8 |
Correct |
2 ms |
636 KB |
Output is correct |
| 9 |
Correct |
2 ms |
640 KB |
Output is correct |
| 10 |
Correct |
2 ms |
640 KB |
Output is correct |
| 11 |
Correct |
2 ms |
640 KB |
Output is correct |
| 12 |
Correct |
2 ms |
640 KB |
Output is correct |
| 13 |
Correct |
2 ms |
640 KB |
Output is correct |
| 14 |
Correct |
2 ms |
640 KB |
Output is correct |
| 15 |
Correct |
2 ms |
640 KB |
Output is correct |
| 16 |
Correct |
3 ms |
640 KB |
Output is correct |
| 17 |
Correct |
2 ms |
640 KB |
Output is correct |
| 18 |
Correct |
2 ms |
640 KB |
Output is correct |
| 19 |
Correct |
2 ms |
640 KB |
Output is correct |
| 20 |
Correct |
2 ms |
640 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
640 KB |
Output is correct |
| 2 |
Correct |
2 ms |
640 KB |
Output is correct |
| 3 |
Correct |
2 ms |
640 KB |
Output is correct |
| 4 |
Correct |
2 ms |
640 KB |
Output is correct |
| 5 |
Correct |
2 ms |
640 KB |
Output is correct |
| 6 |
Correct |
2 ms |
640 KB |
Output is correct |
| 7 |
Correct |
2 ms |
640 KB |
Output is correct |
| 8 |
Correct |
3 ms |
640 KB |
Output is correct |
| 9 |
Correct |
2 ms |
640 KB |
Output is correct |
| 10 |
Correct |
2 ms |
640 KB |
Output is correct |
| 11 |
Correct |
2 ms |
640 KB |
Output is correct |
| 12 |
Correct |
2 ms |
640 KB |
Output is correct |
| 13 |
Correct |
2 ms |
640 KB |
Output is correct |
| 14 |
Correct |
2 ms |
640 KB |
Output is correct |
| 15 |
Correct |
2 ms |
640 KB |
Output is correct |
| 16 |
Correct |
2 ms |
640 KB |
Output is correct |
| 17 |
Correct |
2 ms |
640 KB |
Output is correct |
| 18 |
Correct |
2 ms |
640 KB |
Output is correct |
| 19 |
Correct |
3 ms |
640 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
9 ms |
4860 KB |
Output is correct |
| 2 |
Correct |
20 ms |
19324 KB |
Output is correct |
| 3 |
Correct |
26 ms |
19324 KB |
Output is correct |
| 4 |
Correct |
85 ms |
19452 KB |
Output is correct |
| 5 |
Correct |
255 ms |
43004 KB |
Output is correct |
| 6 |
Correct |
50 ms |
43004 KB |
Output is correct |
| 7 |
Correct |
146 ms |
43004 KB |
Output is correct |
| 8 |
Correct |
2 ms |
43004 KB |
Output is correct |
| 9 |
Correct |
2 ms |
43004 KB |
Output is correct |
| 10 |
Correct |
2 ms |
43004 KB |
Output is correct |
| 11 |
Correct |
3 ms |
43004 KB |
Output is correct |
| 12 |
Correct |
3 ms |
43004 KB |
Output is correct |
| 13 |
Correct |
3 ms |
43004 KB |
Output is correct |
| 14 |
Correct |
25 ms |
43004 KB |
Output is correct |
| 15 |
Correct |
6 ms |
43004 KB |
Output is correct |
| 16 |
Correct |
10 ms |
43004 KB |
Output is correct |
| 17 |
Correct |
20 ms |
43004 KB |
Output is correct |
| 18 |
Correct |
28 ms |
43004 KB |
Output is correct |
| 19 |
Correct |
93 ms |
43004 KB |
Output is correct |
| 20 |
Correct |
272 ms |
43004 KB |
Output is correct |
| 21 |
Correct |
50 ms |
43004 KB |
Output is correct |
| 22 |
Correct |
146 ms |
43004 KB |
Output is correct |
| 23 |
Correct |
44 ms |
43004 KB |
Output is correct |
| 24 |
Correct |
66 ms |
43004 KB |
Output is correct |
| 25 |
Correct |
256 ms |
43004 KB |
Output is correct |
| 26 |
Correct |
2 ms |
43004 KB |
Output is correct |
| 27 |
Correct |
2 ms |
43004 KB |
Output is correct |
| 28 |
Correct |
22 ms |
43004 KB |
Output is correct |
| 29 |
Correct |
6 ms |
43004 KB |
Output is correct |
| 30 |
Correct |
9 ms |
43004 KB |
Output is correct |
| 31 |
Correct |
20 ms |
43004 KB |
Output is correct |
| 32 |
Correct |
32 ms |
43004 KB |
Output is correct |
| 33 |
Correct |
86 ms |
43004 KB |
Output is correct |
| 34 |
Correct |
286 ms |
43200 KB |
Output is correct |
| 35 |
Correct |
50 ms |
43220 KB |
Output is correct |
| 36 |
Correct |
145 ms |
43220 KB |
Output is correct |
| 37 |
Correct |
6 ms |
43220 KB |
Output is correct |
| 38 |
Correct |
21 ms |
43220 KB |
Output is correct |
| 39 |
Correct |
2 ms |
43220 KB |
Output is correct |
| 40 |
Correct |
2 ms |
43220 KB |
Output is correct |
| 41 |
Correct |
2 ms |
43220 KB |
Output is correct |
| 42 |
Correct |
2 ms |
43220 KB |
Output is correct |
