#include<bits/stdc++.h>
using namespace std;
#define f first
#define s second
#define pii pair<int,int>
#define ll long long
int a[311111];
priority_queue<ll,vector<ll>,greater<ll>> pq;
int main()
{
int n,k;
cin>>n>>k;
ll ans=0,cnt=0,cur=0;
for(int i=1; i<=n; i++){
cin>>a[i];
if(a[i]>=0&&a[i-1]>=0) {
cur+=a[i];
}
else if(a[i]<0&&a[i-1]<0)
{
cur-=a[i];
}
else if(a[i]>=0&&a[i-1]<0){
pq.push(cur);
cur=a[i];
}
else if(a[i]<0&&a[i-1]>=0)
{
pq.push(cur);
ans+=cur;
cnt++;
cur=-a[i];
}
//cout<<ans<<'\n';
}
if(a[n]>=0) pq.push(cur),cnt++,ans+=cur;
//cout<<'\n';
while(cnt>k)
{
//cout<<ans<<'\n';
int now=pq.top();
ans-=now;
cnt--;
pq.pop();
}
cout<<max(ans,(ll)0);
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
70 ms |
1352 KB |
Output is correct |
2 |
Correct |
75 ms |
1384 KB |
Output is correct |
3 |
Correct |
95 ms |
1352 KB |
Output is correct |
4 |
Correct |
74 ms |
1588 KB |
Output is correct |
5 |
Correct |
72 ms |
1344 KB |
Output is correct |
6 |
Correct |
70 ms |
1520 KB |
Output is correct |
7 |
Correct |
78 ms |
1476 KB |
Output is correct |
8 |
Correct |
79 ms |
1432 KB |
Output is correct |
9 |
Correct |
78 ms |
1352 KB |
Output is correct |
10 |
Correct |
71 ms |
1352 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
34 ms |
1352 KB |
Output is correct |
2 |
Correct |
36 ms |
1356 KB |
Output is correct |
3 |
Correct |
36 ms |
1352 KB |
Output is correct |
4 |
Correct |
36 ms |
1352 KB |
Output is correct |
5 |
Correct |
68 ms |
1484 KB |
Output is correct |
6 |
Correct |
37 ms |
2264 KB |
Output is correct |
7 |
Correct |
48 ms |
2340 KB |
Output is correct |
8 |
Correct |
78 ms |
3400 KB |
Output is correct |
9 |
Correct |
77 ms |
2888 KB |
Output is correct |
10 |
Correct |
37 ms |
2632 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
87 ms |
4664 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
504 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
504 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
504 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
70 ms |
1352 KB |
Output is correct |
2 |
Correct |
75 ms |
1384 KB |
Output is correct |
3 |
Correct |
95 ms |
1352 KB |
Output is correct |
4 |
Correct |
74 ms |
1588 KB |
Output is correct |
5 |
Correct |
72 ms |
1344 KB |
Output is correct |
6 |
Correct |
70 ms |
1520 KB |
Output is correct |
7 |
Correct |
78 ms |
1476 KB |
Output is correct |
8 |
Correct |
79 ms |
1432 KB |
Output is correct |
9 |
Correct |
78 ms |
1352 KB |
Output is correct |
10 |
Correct |
71 ms |
1352 KB |
Output is correct |
11 |
Correct |
34 ms |
1352 KB |
Output is correct |
12 |
Correct |
36 ms |
1356 KB |
Output is correct |
13 |
Correct |
36 ms |
1352 KB |
Output is correct |
14 |
Correct |
36 ms |
1352 KB |
Output is correct |
15 |
Correct |
68 ms |
1484 KB |
Output is correct |
16 |
Correct |
37 ms |
2264 KB |
Output is correct |
17 |
Correct |
48 ms |
2340 KB |
Output is correct |
18 |
Correct |
78 ms |
3400 KB |
Output is correct |
19 |
Correct |
77 ms |
2888 KB |
Output is correct |
20 |
Correct |
37 ms |
2632 KB |
Output is correct |
21 |
Incorrect |
87 ms |
4664 KB |
Output isn't correct |
22 |
Halted |
0 ms |
0 KB |
- |