using namespace std ;
#include <bits/stdc++.h> /* #7th-Polygon */
typedef pair < int , int > IntInt ;
const int N = 1e5 + 7 ;
const int K = 100 + 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] ;
memset(dp , -1 , sizeof(dp)) ;
dp[0][1] = 0 ;
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] , dp[my_stack.size() ? my_stack.top().first : 0][b]) ;
my_stack.emplace(i , min_dp) ;
}
}
cout << dp[n][k] << "\n" ;
return 0 ;
}
Compilation message
blocks.cpp: In function 'int main()':
blocks.cpp:17:24: 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 i = 1 ; i <= n ; ++i)
~~^~~~
blocks.cpp:26:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int b = 2 ; b <= k ; ++b)
~~^~~~
blocks.cpp:29:28: 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 |
36 ms |
42232 KB |
Output is correct |
| 2 |
Correct |
38 ms |
42356 KB |
Output is correct |
| 3 |
Correct |
38 ms |
42356 KB |
Output is correct |
| 4 |
Correct |
37 ms |
42356 KB |
Output is correct |
| 5 |
Correct |
38 ms |
42428 KB |
Output is correct |
| 6 |
Correct |
37 ms |
42460 KB |
Output is correct |
| 7 |
Correct |
37 ms |
42460 KB |
Output is correct |
| 8 |
Correct |
38 ms |
42460 KB |
Output is correct |
| 9 |
Correct |
37 ms |
42460 KB |
Output is correct |
| 10 |
Correct |
37 ms |
42572 KB |
Output is correct |
| 11 |
Correct |
38 ms |
42572 KB |
Output is correct |
| 12 |
Correct |
37 ms |
42572 KB |
Output is correct |
| 13 |
Correct |
37 ms |
42572 KB |
Output is correct |
| 14 |
Correct |
36 ms |
42572 KB |
Output is correct |
| 15 |
Correct |
43 ms |
42572 KB |
Output is correct |
| 16 |
Correct |
36 ms |
42572 KB |
Output is correct |
| 17 |
Correct |
36 ms |
42572 KB |
Output is correct |
| 18 |
Correct |
36 ms |
42572 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
36 ms |
42572 KB |
Output is correct |
| 2 |
Correct |
36 ms |
42572 KB |
Output is correct |
| 3 |
Correct |
37 ms |
42572 KB |
Output is correct |
| 4 |
Correct |
38 ms |
42572 KB |
Output is correct |
| 5 |
Correct |
36 ms |
42572 KB |
Output is correct |
| 6 |
Correct |
37 ms |
42572 KB |
Output is correct |
| 7 |
Correct |
39 ms |
42572 KB |
Output is correct |
| 8 |
Correct |
36 ms |
42572 KB |
Output is correct |
| 9 |
Correct |
37 ms |
42572 KB |
Output is correct |
| 10 |
Correct |
36 ms |
42572 KB |
Output is correct |
| 11 |
Correct |
38 ms |
42572 KB |
Output is correct |
| 12 |
Correct |
36 ms |
42572 KB |
Output is correct |
| 13 |
Correct |
36 ms |
42572 KB |
Output is correct |
| 14 |
Correct |
37 ms |
42572 KB |
Output is correct |
| 15 |
Correct |
36 ms |
42572 KB |
Output is correct |
| 16 |
Correct |
36 ms |
42584 KB |
Output is correct |
| 17 |
Correct |
37 ms |
42584 KB |
Output is correct |
| 18 |
Correct |
38 ms |
42584 KB |
Output is correct |
| 19 |
Correct |
38 ms |
42584 KB |
Output is correct |
| 20 |
Correct |
36 ms |
42584 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
36 ms |
42620 KB |
Output is correct |
| 2 |
Correct |
36 ms |
42620 KB |
Output is correct |
| 3 |
Correct |
37 ms |
42620 KB |
Output is correct |
| 4 |
Correct |
36 ms |
42620 KB |
Output is correct |
| 5 |
Correct |
36 ms |
42620 KB |
Output is correct |
| 6 |
Correct |
37 ms |
42620 KB |
Output is correct |
| 7 |
Correct |
36 ms |
42620 KB |
Output is correct |
| 8 |
Correct |
37 ms |
42620 KB |
Output is correct |
| 9 |
Correct |
37 ms |
42620 KB |
Output is correct |
| 10 |
Correct |
38 ms |
42620 KB |
Output is correct |
| 11 |
Correct |
38 ms |
42620 KB |
Output is correct |
| 12 |
Correct |
36 ms |
42620 KB |
Output is correct |
| 13 |
Correct |
38 ms |
42620 KB |
Output is correct |
| 14 |
Correct |
36 ms |
42620 KB |
Output is correct |
| 15 |
Correct |
36 ms |
42620 KB |
Output is correct |
| 16 |
Correct |
37 ms |
42620 KB |
Output is correct |
| 17 |
Correct |
38 ms |
42620 KB |
Output is correct |
| 18 |
Correct |
37 ms |
42620 KB |
Output is correct |
| 19 |
Correct |
36 ms |
42620 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
42 ms |
42620 KB |
Output is correct |
| 2 |
Correct |
42 ms |
42668 KB |
Output is correct |
| 3 |
Correct |
46 ms |
42668 KB |
Output is correct |
| 4 |
Correct |
102 ms |
42788 KB |
Output is correct |
| 5 |
Correct |
258 ms |
42916 KB |
Output is correct |
| 6 |
Correct |
51 ms |
42916 KB |
Output is correct |
| 7 |
Correct |
137 ms |
42916 KB |
Output is correct |
| 8 |
Correct |
36 ms |
42916 KB |
Output is correct |
| 9 |
Correct |
37 ms |
42916 KB |
Output is correct |
| 10 |
Correct |
37 ms |
42916 KB |
Output is correct |
| 11 |
Correct |
36 ms |
42916 KB |
Output is correct |
| 12 |
Correct |
37 ms |
42916 KB |
Output is correct |
| 13 |
Correct |
38 ms |
42916 KB |
Output is correct |
| 14 |
Correct |
56 ms |
42916 KB |
Output is correct |
| 15 |
Correct |
38 ms |
42916 KB |
Output is correct |
| 16 |
Correct |
44 ms |
42916 KB |
Output is correct |
| 17 |
Correct |
43 ms |
42916 KB |
Output is correct |
| 18 |
Correct |
48 ms |
42916 KB |
Output is correct |
| 19 |
Correct |
108 ms |
42916 KB |
Output is correct |
| 20 |
Correct |
313 ms |
43004 KB |
Output is correct |
| 21 |
Correct |
53 ms |
43004 KB |
Output is correct |
| 22 |
Correct |
174 ms |
43004 KB |
Output is correct |
| 23 |
Correct |
48 ms |
43004 KB |
Output is correct |
| 24 |
Correct |
73 ms |
43004 KB |
Output is correct |
| 25 |
Correct |
323 ms |
43004 KB |
Output is correct |
| 26 |
Correct |
37 ms |
43004 KB |
Output is correct |
| 27 |
Correct |
36 ms |
43004 KB |
Output is correct |
| 28 |
Correct |
53 ms |
43004 KB |
Output is correct |
| 29 |
Correct |
39 ms |
43004 KB |
Output is correct |
| 30 |
Correct |
43 ms |
43004 KB |
Output is correct |
| 31 |
Correct |
41 ms |
43004 KB |
Output is correct |
| 32 |
Correct |
50 ms |
43004 KB |
Output is correct |
| 33 |
Correct |
102 ms |
43004 KB |
Output is correct |
| 34 |
Correct |
426 ms |
43312 KB |
Output is correct |
| 35 |
Correct |
55 ms |
43312 KB |
Output is correct |
| 36 |
Correct |
189 ms |
43324 KB |
Output is correct |
| 37 |
Correct |
38 ms |
43324 KB |
Output is correct |
| 38 |
Correct |
54 ms |
43324 KB |
Output is correct |
| 39 |
Correct |
46 ms |
43324 KB |
Output is correct |
| 40 |
Correct |
38 ms |
43324 KB |
Output is correct |
| 41 |
Correct |
37 ms |
43324 KB |
Output is correct |
| 42 |
Correct |
37 ms |
43324 KB |
Output is correct |
