| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 240169 |
2020-06-18T10:50:43 Z |
lyc |
Mountains (IOI17_mountains) |
C++14 |
|
44 ms |
16384 KB |
#include "mountains.h"
#include <bits/stdc++.h>
using namespace std;
#define TRACE(x) cout << #x << " :: " << x << endl;
#define _ << " " <<
#define FOR(i,a,b) for(int i=(a);i<=(b);++i)
#define RFOR(i,a,b) for(int i=(a);i>=(b);--i)
#define SZ(x) ((int)(x).size())
#define ALL(x) (x).begin(),(x).end()
const double EPS = 1e-6;
const int mxN = 2e3+5;
int memo[mxN][mxN];
int solve(int l, int r, vector<int>& y) {
if (l > r) return 0;
if (l == r) return 1;
if (~memo[l][r]) return memo[l][r];
int mx = l;
FOR(i,l+1,r) if (y[i] > y[mx]) mx = i;
memo[l][r] = solve(l,mx-1,y) + solve(mx+1,r,y);
int cur = 1;
if (l < mx-1) {
int j = mx-2;
double mng = (double)(y[mx]-y[mx-1]);
RFOR(i,mx-2,l){
double g = (double)(y[mx]-y[i])/(mx-i);
if (g < mng+EPS) {
mng = g;
cur += solve(i+1,j,y);
j = i-1;
}
}
cur += solve(l,j,y);
}
if (mx+1 < r) {
int j = mx+2;
double mng = (double)(y[mx]-y[mx+1]);
FOR(i,mx+2,r){
double g = (double)(y[mx]-y[i])/(i-mx);
if (g < mng+EPS) {
mng = g;
cur += solve(j,i-1,y);
j = i+1;
}
}
cur += solve(j,r,y);
}
memo[l][r] = max(memo[l][r],cur);
return memo[l][r];
}
int maximum_deevs(vector<int> y) {
memset(memo,-1,sizeof memo);
return solve(0,SZ(y)-1,y);
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
12 ms |
16128 KB |
Output is correct |
| 2 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 3 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 4 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 5 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 6 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 7 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 8 |
Correct |
12 ms |
16128 KB |
Output is correct |
| 9 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 10 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 11 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 12 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 13 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 14 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 15 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 16 |
Correct |
14 ms |
16000 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
12 ms |
16128 KB |
Output is correct |
| 2 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 3 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 4 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 5 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 6 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 7 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 8 |
Correct |
12 ms |
16128 KB |
Output is correct |
| 9 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 10 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 11 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 12 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 13 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 14 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 15 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 16 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 17 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 18 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 19 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 20 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 21 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 22 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 23 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 24 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 25 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 26 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 27 |
Correct |
14 ms |
16128 KB |
Output is correct |
| 28 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 29 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 30 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 31 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 32 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 33 |
Correct |
15 ms |
16000 KB |
Output is correct |
| 34 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 35 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 36 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 37 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 38 |
Correct |
13 ms |
16128 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
12 ms |
16128 KB |
Output is correct |
| 2 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 3 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 4 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 5 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 6 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 7 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 8 |
Correct |
12 ms |
16128 KB |
Output is correct |
| 9 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 10 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 11 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 12 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 13 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 14 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 15 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 16 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 17 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 18 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 19 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 20 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 21 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 22 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 23 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 24 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 25 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 26 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 27 |
Correct |
14 ms |
16128 KB |
Output is correct |
| 28 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 29 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 30 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 31 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 32 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 33 |
Correct |
15 ms |
16000 KB |
Output is correct |
| 34 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 35 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 36 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 37 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 38 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 39 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 40 |
Correct |
15 ms |
16000 KB |
Output is correct |
| 41 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 42 |
Correct |
15 ms |
16000 KB |
Output is correct |
| 43 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 44 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 45 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 46 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 47 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 48 |
Correct |
15 ms |
16128 KB |
Output is correct |
| 49 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 50 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 51 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 52 |
Correct |
15 ms |
16128 KB |
Output is correct |
| 53 |
Correct |
14 ms |
16128 KB |
Output is correct |
| 54 |
Correct |
14 ms |
16128 KB |
Output is correct |
| 55 |
Correct |
15 ms |
16256 KB |
Output is correct |
| 56 |
Correct |
16 ms |
16256 KB |
Output is correct |
| 57 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 58 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 59 |
Correct |
15 ms |
16128 KB |
Output is correct |
| 60 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 61 |
Correct |
14 ms |
16128 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
12 ms |
16128 KB |
Output is correct |
| 2 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 3 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 4 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 5 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 6 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 7 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 8 |
Correct |
12 ms |
16128 KB |
Output is correct |
| 9 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 10 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 11 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 12 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 13 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 14 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 15 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 16 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 17 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 18 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 19 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 20 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 21 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 22 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 23 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 24 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 25 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 26 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 27 |
Correct |
14 ms |
16128 KB |
Output is correct |
| 28 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 29 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 30 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 31 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 32 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 33 |
Correct |
15 ms |
16000 KB |
Output is correct |
| 34 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 35 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 36 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 37 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 38 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 39 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 40 |
Correct |
15 ms |
16000 KB |
Output is correct |
| 41 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 42 |
Correct |
15 ms |
16000 KB |
Output is correct |
| 43 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 44 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 45 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 46 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 47 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 48 |
Correct |
15 ms |
16128 KB |
Output is correct |
| 49 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 50 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 51 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 52 |
Correct |
15 ms |
16128 KB |
Output is correct |
| 53 |
Correct |
14 ms |
16128 KB |
Output is correct |
| 54 |
Correct |
14 ms |
16128 KB |
Output is correct |
| 55 |
Correct |
15 ms |
16256 KB |
Output is correct |
| 56 |
Correct |
16 ms |
16256 KB |
Output is correct |
| 57 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 58 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 59 |
Correct |
15 ms |
16128 KB |
Output is correct |
| 60 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 61 |
Correct |
14 ms |
16128 KB |
Output is correct |
| 62 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 63 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 64 |
Correct |
14 ms |
16128 KB |
Output is correct |
| 65 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 66 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 67 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 68 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 69 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 70 |
Correct |
21 ms |
16256 KB |
Output is correct |
| 71 |
Correct |
21 ms |
16256 KB |
Output is correct |
| 72 |
Correct |
22 ms |
16256 KB |
Output is correct |
| 73 |
Correct |
23 ms |
16128 KB |
Output is correct |
| 74 |
Correct |
23 ms |
16248 KB |
Output is correct |
| 75 |
Correct |
21 ms |
16128 KB |
Output is correct |
| 76 |
Correct |
13 ms |
16128 KB |
Output is correct |
| 77 |
Correct |
42 ms |
16256 KB |
Output is correct |
| 78 |
Correct |
39 ms |
16256 KB |
Output is correct |
| 79 |
Correct |
44 ms |
16256 KB |
Output is correct |
| 80 |
Correct |
44 ms |
16384 KB |
Output is correct |
| 81 |
Correct |
39 ms |
16256 KB |
Output is correct |
| 82 |
Correct |
25 ms |
16384 KB |
Output is correct |
| 83 |
Correct |
26 ms |
16128 KB |
Output is correct |
| 84 |
Correct |
24 ms |
16256 KB |
Output is correct |
| 85 |
Correct |
23 ms |
16376 KB |
Output is correct |
| 86 |
Correct |
25 ms |
16256 KB |
Output is correct |
