# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
595991 |
2022-07-14T08:46:32 Z |
Tenis0206 |
Feast (NOI19_feast) |
C++11 |
|
108 ms |
14940 KB |
#include <bits/stdc++.h>
#define int long long
using namespace std;
const int oo = 0x3f3f3f3f;
int n,k;
int v[300005];
int sp[300005];
pair<int,int> dp[300005][2];
pair<int,int> get_val(int c)
{
/* int Max = 0, nrval = 0;
int Max_pref = 0, nrval_pref = 0;
for(int i=1;i<=n;i++)
{
dp[i].first = Max_pref + sp[i] - c;
dp[i].second = nrval_pref + 1;
if(dp[i].first > Max || (dp[i].first==Max && dp[i].second < nrval))
{
Max = dp[i].first;
nrval = dp[i].second;
}
if(Max - sp[i] > Max_pref || (Max - sp[i]==Max_pref && nrval < nrval_pref))
{
Max_pref = Max - sp[i];
nrval_pref = nrval;
}
}
*/
dp[0][1].first = -oo;
for(int i=1; i<=n+1; i++)
{
if(dp[i-1][0]>=dp[i-1][1])
{
dp[i][0] = dp[i-1][0];
}
else
{
dp[i][0] = dp[i-1][1];
}
if(pair<int,int>{dp[i-1][1].first + v[i], dp[i-1][1].second} >= pair<int,int>{dp[i-1][0].first + v[i] - c, dp[i-1][0].second + 1})
{
dp[i][1] = {dp[i-1][1].first + v[i], dp[i-1][1].second};
}
else
{
dp[i][1] = {dp[i-1][0].first + v[i] - c, dp[i-1][0].second + 1};
}
}
return dp[n+1][0];
}
signed main()
{
ios::sync_with_stdio(false);
cin.tie(0);
cin>>n>>k;
for(int i=1; i<=n; i++)
{
cin>>v[i];
sp[i] = sp[i-1] + v[i];
}
int st = 0;
int dr = oo;
while(st<=dr)
{
int mij = (st + dr) >> 1;
pair<int,int> val = get_val(mij);
if(val.second==k)
{
cout<<val.first + k * mij<<'\n';
return 0;
}
if(val.second<k)
{
dr = mij - 1;
}
else
{
st = mij + 1;
}
}
pair<int,int> val = get_val(st);
cout<<val.first + k * st<<'\n';
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
67 ms |
13952 KB |
Output is correct |
2 |
Correct |
65 ms |
14220 KB |
Output is correct |
3 |
Correct |
69 ms |
14376 KB |
Output is correct |
4 |
Correct |
64 ms |
14280 KB |
Output is correct |
5 |
Correct |
64 ms |
14204 KB |
Output is correct |
6 |
Correct |
65 ms |
13960 KB |
Output is correct |
7 |
Correct |
66 ms |
13960 KB |
Output is correct |
8 |
Correct |
64 ms |
14256 KB |
Output is correct |
9 |
Correct |
65 ms |
14000 KB |
Output is correct |
10 |
Correct |
66 ms |
14056 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
33 ms |
14004 KB |
Output is correct |
2 |
Correct |
26 ms |
14368 KB |
Output is correct |
3 |
Correct |
26 ms |
13984 KB |
Output is correct |
4 |
Correct |
57 ms |
14164 KB |
Output is correct |
5 |
Correct |
37 ms |
14608 KB |
Output is correct |
6 |
Correct |
27 ms |
14660 KB |
Output is correct |
7 |
Correct |
61 ms |
14920 KB |
Output is correct |
8 |
Correct |
40 ms |
14940 KB |
Output is correct |
9 |
Correct |
33 ms |
14500 KB |
Output is correct |
10 |
Correct |
58 ms |
14928 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
108 ms |
14296 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
67 ms |
13952 KB |
Output is correct |
2 |
Correct |
65 ms |
14220 KB |
Output is correct |
3 |
Correct |
69 ms |
14376 KB |
Output is correct |
4 |
Correct |
64 ms |
14280 KB |
Output is correct |
5 |
Correct |
64 ms |
14204 KB |
Output is correct |
6 |
Correct |
65 ms |
13960 KB |
Output is correct |
7 |
Correct |
66 ms |
13960 KB |
Output is correct |
8 |
Correct |
64 ms |
14256 KB |
Output is correct |
9 |
Correct |
65 ms |
14000 KB |
Output is correct |
10 |
Correct |
66 ms |
14056 KB |
Output is correct |
11 |
Correct |
33 ms |
14004 KB |
Output is correct |
12 |
Correct |
26 ms |
14368 KB |
Output is correct |
13 |
Correct |
26 ms |
13984 KB |
Output is correct |
14 |
Correct |
57 ms |
14164 KB |
Output is correct |
15 |
Correct |
37 ms |
14608 KB |
Output is correct |
16 |
Correct |
27 ms |
14660 KB |
Output is correct |
17 |
Correct |
61 ms |
14920 KB |
Output is correct |
18 |
Correct |
40 ms |
14940 KB |
Output is correct |
19 |
Correct |
33 ms |
14500 KB |
Output is correct |
20 |
Correct |
58 ms |
14928 KB |
Output is correct |
21 |
Incorrect |
108 ms |
14296 KB |
Output isn't correct |
22 |
Halted |
0 ms |
0 KB |
- |