#include "mountains.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long int lli;
const int MAXN = 310;
struct point
{
lli x, y;
point(lli x = 0, lli y = 0)
: x(x), y(y) {}
lli operator * (point a) { return x*a.y - y*a.x; }
point operator - (point a) { return point( x - a.x , y - a.y ); }
};
int n;
int v[MAXN];
int dp[MAXN][MAXN];
int solve(int L, int R)
{
int& ans = dp[L][R];
if( ans != -1 ) return ans;
if( L > R ) return ans = 0;
if( L == R ) return ans = 1;
ans = 1;
vector<point> cHull( 1 , point( L , v[L] ) );
int last = L + 1;
for(int i = L + 1 ; i <= R ; i++)
{
point cur( i , v[i] );
while( (int)cHull.size() > 1 )
{
point A = cHull[ (int)cHull.size() - 1 ];
point origin = cHull[ (int)cHull.size() - 2 ];
if( (cur - origin)*(A - origin) > 0 ) break;
cHull.pop_back();
}
if( (int)cHull.size() == 1 )
{
ans += solve( last , i - 1 );
last = i + 1;
}
cHull.push_back( cur );
}
ans += solve( last , R );
ans = max( ans , solve( L + 1 , R ) );
return ans;
}
int maximum_deevs(vector<int> y)
{
n = (int)y.size();
for(int i = 1 ; i <= n ; i++)
v[i] = y[i - 1];
memset( dp , -1 , sizeof(dp) );
return solve( 1 , n );
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
640 KB |
Output is correct |
| 2 |
Correct |
1 ms |
640 KB |
Output is correct |
| 3 |
Correct |
1 ms |
768 KB |
Output is correct |
| 4 |
Correct |
1 ms |
768 KB |
Output is correct |
| 5 |
Correct |
1 ms |
640 KB |
Output is correct |
| 6 |
Correct |
1 ms |
640 KB |
Output is correct |
| 7 |
Correct |
1 ms |
640 KB |
Output is correct |
| 8 |
Correct |
1 ms |
640 KB |
Output is correct |
| 9 |
Correct |
1 ms |
640 KB |
Output is correct |
| 10 |
Correct |
1 ms |
640 KB |
Output is correct |
| 11 |
Correct |
1 ms |
640 KB |
Output is correct |
| 12 |
Correct |
1 ms |
640 KB |
Output is correct |
| 13 |
Correct |
1 ms |
640 KB |
Output is correct |
| 14 |
Correct |
1 ms |
640 KB |
Output is correct |
| 15 |
Correct |
1 ms |
640 KB |
Output is correct |
| 16 |
Correct |
1 ms |
640 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
640 KB |
Output is correct |
| 2 |
Correct |
1 ms |
640 KB |
Output is correct |
| 3 |
Correct |
1 ms |
768 KB |
Output is correct |
| 4 |
Correct |
1 ms |
768 KB |
Output is correct |
| 5 |
Correct |
1 ms |
640 KB |
Output is correct |
| 6 |
Correct |
1 ms |
640 KB |
Output is correct |
| 7 |
Correct |
1 ms |
640 KB |
Output is correct |
| 8 |
Correct |
1 ms |
640 KB |
Output is correct |
| 9 |
Correct |
1 ms |
640 KB |
Output is correct |
| 10 |
Correct |
1 ms |
640 KB |
Output is correct |
| 11 |
Correct |
1 ms |
640 KB |
Output is correct |
| 12 |
Correct |
1 ms |
640 KB |
Output is correct |
| 13 |
Correct |
1 ms |
640 KB |
Output is correct |
| 14 |
Correct |
1 ms |
640 KB |
Output is correct |
| 15 |
Correct |
1 ms |
640 KB |
Output is correct |
| 16 |
Correct |
1 ms |
640 KB |
Output is correct |
| 17 |
Correct |
1 ms |
640 KB |
Output is correct |
| 18 |
Correct |
1 ms |
640 KB |
Output is correct |
| 19 |
Correct |
1 ms |
640 KB |
Output is correct |
| 20 |
Correct |
1 ms |
640 KB |
Output is correct |
| 21 |
Correct |
1 ms |
640 KB |
Output is correct |
| 22 |
Correct |
1 ms |
640 KB |
Output is correct |
| 23 |
Correct |
1 ms |
768 KB |
Output is correct |
| 24 |
Correct |
1 ms |
640 KB |
Output is correct |
| 25 |
Correct |
1 ms |
640 KB |
Output is correct |
| 26 |
Correct |
1 ms |
640 KB |
Output is correct |
| 27 |
Correct |
1 ms |
640 KB |
Output is correct |
| 28 |
Correct |
1 ms |
640 KB |
Output is correct |
| 29 |
Correct |
1 ms |
640 KB |
Output is correct |
| 30 |
Correct |
1 ms |
640 KB |
Output is correct |
| 31 |
Correct |
1 ms |
640 KB |
Output is correct |
| 32 |
Correct |
1 ms |
640 KB |
Output is correct |
| 33 |
Correct |
1 ms |
640 KB |
Output is correct |
| 34 |
Correct |
1 ms |
640 KB |
Output is correct |
| 35 |
Correct |
1 ms |
640 KB |
Output is correct |
| 36 |
Correct |
1 ms |
640 KB |
Output is correct |
| 37 |
Correct |
1 ms |
896 KB |
Output is correct |
| 38 |
Correct |
1 ms |
768 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
640 KB |
Output is correct |
| 2 |
Correct |
1 ms |
640 KB |
Output is correct |
| 3 |
Correct |
1 ms |
768 KB |
Output is correct |
| 4 |
Correct |
1 ms |
768 KB |
Output is correct |
| 5 |
Correct |
1 ms |
640 KB |
Output is correct |
| 6 |
Correct |
1 ms |
640 KB |
Output is correct |
| 7 |
Correct |
1 ms |
640 KB |
Output is correct |
| 8 |
Correct |
1 ms |
640 KB |
Output is correct |
| 9 |
Correct |
1 ms |
640 KB |
Output is correct |
| 10 |
Correct |
1 ms |
640 KB |
Output is correct |
| 11 |
Correct |
1 ms |
640 KB |
Output is correct |
| 12 |
Correct |
1 ms |
640 KB |
Output is correct |
| 13 |
Correct |
1 ms |
640 KB |
Output is correct |
| 14 |
Correct |
1 ms |
640 KB |
Output is correct |
| 15 |
Correct |
1 ms |
640 KB |
Output is correct |
| 16 |
Correct |
1 ms |
640 KB |
Output is correct |
| 17 |
Correct |
1 ms |
640 KB |
Output is correct |
| 18 |
Correct |
1 ms |
640 KB |
Output is correct |
| 19 |
Correct |
1 ms |
640 KB |
Output is correct |
| 20 |
Correct |
1 ms |
640 KB |
Output is correct |
| 21 |
Correct |
1 ms |
640 KB |
Output is correct |
| 22 |
Correct |
1 ms |
640 KB |
Output is correct |
| 23 |
Correct |
1 ms |
768 KB |
Output is correct |
| 24 |
Correct |
1 ms |
640 KB |
Output is correct |
| 25 |
Correct |
1 ms |
640 KB |
Output is correct |
| 26 |
Correct |
1 ms |
640 KB |
Output is correct |
| 27 |
Correct |
1 ms |
640 KB |
Output is correct |
| 28 |
Correct |
1 ms |
640 KB |
Output is correct |
| 29 |
Correct |
1 ms |
640 KB |
Output is correct |
| 30 |
Correct |
1 ms |
640 KB |
Output is correct |
| 31 |
Correct |
1 ms |
640 KB |
Output is correct |
| 32 |
Correct |
1 ms |
640 KB |
Output is correct |
| 33 |
Correct |
1 ms |
640 KB |
Output is correct |
| 34 |
Correct |
1 ms |
640 KB |
Output is correct |
| 35 |
Correct |
1 ms |
640 KB |
Output is correct |
| 36 |
Correct |
1 ms |
640 KB |
Output is correct |
| 37 |
Correct |
1 ms |
896 KB |
Output is correct |
| 38 |
Correct |
1 ms |
768 KB |
Output is correct |
| 39 |
Correct |
1 ms |
640 KB |
Output is correct |
| 40 |
Correct |
2 ms |
768 KB |
Output is correct |
| 41 |
Correct |
2 ms |
768 KB |
Output is correct |
| 42 |
Correct |
2 ms |
768 KB |
Output is correct |
| 43 |
Correct |
2 ms |
768 KB |
Output is correct |
| 44 |
Correct |
2 ms |
768 KB |
Output is correct |
| 45 |
Correct |
4 ms |
768 KB |
Output is correct |
| 46 |
Correct |
4 ms |
768 KB |
Output is correct |
| 47 |
Correct |
4 ms |
768 KB |
Output is correct |
| 48 |
Correct |
4 ms |
768 KB |
Output is correct |
| 49 |
Correct |
4 ms |
768 KB |
Output is correct |
| 50 |
Correct |
4 ms |
768 KB |
Output is correct |
| 51 |
Correct |
2 ms |
640 KB |
Output is correct |
| 52 |
Correct |
2 ms |
768 KB |
Output is correct |
| 53 |
Correct |
2 ms |
768 KB |
Output is correct |
| 54 |
Correct |
2 ms |
768 KB |
Output is correct |
| 55 |
Correct |
2 ms |
768 KB |
Output is correct |
| 56 |
Correct |
2 ms |
768 KB |
Output is correct |
| 57 |
Correct |
2 ms |
1280 KB |
Output is correct |
| 58 |
Correct |
2 ms |
672 KB |
Output is correct |
| 59 |
Correct |
2 ms |
768 KB |
Output is correct |
| 60 |
Correct |
3 ms |
1808 KB |
Output is correct |
| 61 |
Correct |
3 ms |
1712 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
640 KB |
Output is correct |
| 2 |
Correct |
1 ms |
640 KB |
Output is correct |
| 3 |
Correct |
1 ms |
768 KB |
Output is correct |
| 4 |
Correct |
1 ms |
768 KB |
Output is correct |
| 5 |
Correct |
1 ms |
640 KB |
Output is correct |
| 6 |
Correct |
1 ms |
640 KB |
Output is correct |
| 7 |
Correct |
1 ms |
640 KB |
Output is correct |
| 8 |
Correct |
1 ms |
640 KB |
Output is correct |
| 9 |
Correct |
1 ms |
640 KB |
Output is correct |
| 10 |
Correct |
1 ms |
640 KB |
Output is correct |
| 11 |
Correct |
1 ms |
640 KB |
Output is correct |
| 12 |
Correct |
1 ms |
640 KB |
Output is correct |
| 13 |
Correct |
1 ms |
640 KB |
Output is correct |
| 14 |
Correct |
1 ms |
640 KB |
Output is correct |
| 15 |
Correct |
1 ms |
640 KB |
Output is correct |
| 16 |
Correct |
1 ms |
640 KB |
Output is correct |
| 17 |
Correct |
1 ms |
640 KB |
Output is correct |
| 18 |
Correct |
1 ms |
640 KB |
Output is correct |
| 19 |
Correct |
1 ms |
640 KB |
Output is correct |
| 20 |
Correct |
1 ms |
640 KB |
Output is correct |
| 21 |
Correct |
1 ms |
640 KB |
Output is correct |
| 22 |
Correct |
1 ms |
640 KB |
Output is correct |
| 23 |
Correct |
1 ms |
768 KB |
Output is correct |
| 24 |
Correct |
1 ms |
640 KB |
Output is correct |
| 25 |
Correct |
1 ms |
640 KB |
Output is correct |
| 26 |
Correct |
1 ms |
640 KB |
Output is correct |
| 27 |
Correct |
1 ms |
640 KB |
Output is correct |
| 28 |
Correct |
1 ms |
640 KB |
Output is correct |
| 29 |
Correct |
1 ms |
640 KB |
Output is correct |
| 30 |
Correct |
1 ms |
640 KB |
Output is correct |
| 31 |
Correct |
1 ms |
640 KB |
Output is correct |
| 32 |
Correct |
1 ms |
640 KB |
Output is correct |
| 33 |
Correct |
1 ms |
640 KB |
Output is correct |
| 34 |
Correct |
1 ms |
640 KB |
Output is correct |
| 35 |
Correct |
1 ms |
640 KB |
Output is correct |
| 36 |
Correct |
1 ms |
640 KB |
Output is correct |
| 37 |
Correct |
1 ms |
896 KB |
Output is correct |
| 38 |
Correct |
1 ms |
768 KB |
Output is correct |
| 39 |
Correct |
1 ms |
640 KB |
Output is correct |
| 40 |
Correct |
2 ms |
768 KB |
Output is correct |
| 41 |
Correct |
2 ms |
768 KB |
Output is correct |
| 42 |
Correct |
2 ms |
768 KB |
Output is correct |
| 43 |
Correct |
2 ms |
768 KB |
Output is correct |
| 44 |
Correct |
2 ms |
768 KB |
Output is correct |
| 45 |
Correct |
4 ms |
768 KB |
Output is correct |
| 46 |
Correct |
4 ms |
768 KB |
Output is correct |
| 47 |
Correct |
4 ms |
768 KB |
Output is correct |
| 48 |
Correct |
4 ms |
768 KB |
Output is correct |
| 49 |
Correct |
4 ms |
768 KB |
Output is correct |
| 50 |
Correct |
4 ms |
768 KB |
Output is correct |
| 51 |
Correct |
2 ms |
640 KB |
Output is correct |
| 52 |
Correct |
2 ms |
768 KB |
Output is correct |
| 53 |
Correct |
2 ms |
768 KB |
Output is correct |
| 54 |
Correct |
2 ms |
768 KB |
Output is correct |
| 55 |
Correct |
2 ms |
768 KB |
Output is correct |
| 56 |
Correct |
2 ms |
768 KB |
Output is correct |
| 57 |
Correct |
2 ms |
1280 KB |
Output is correct |
| 58 |
Correct |
2 ms |
672 KB |
Output is correct |
| 59 |
Correct |
2 ms |
768 KB |
Output is correct |
| 60 |
Correct |
3 ms |
1808 KB |
Output is correct |
| 61 |
Correct |
3 ms |
1712 KB |
Output is correct |
| 62 |
Runtime error |
3 ms |
1280 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 63 |
Halted |
0 ms |
0 KB |
- |
