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답안 #646184

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
646184 2022-09-29T04:31:52 Z kith14 Feast (NOI19_feast) C++17
51 / 100
 1000 ms 55252 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define db double
#define pairll pair<ll,ll>
#define lpairll pair<ll,pairll>

#define repp(i,a,b) for (ll i = a; i <= b; i++)
#define repz(i,a,b) for (ll i = a; i < b; i++)
#define repm(i,a,b) for (ll i = a; i >= b; i--)
#define fr first
#define sc second
#define x first
#define y second
#define mp make_pair
#define pb push_back

const ll N = 3e5+5, MOD = 1e9+7;
ll tc = 1, n, m, ar[N], br[N], tot;
string s, s1, s2, ye = "YA", no = "TIDAK";

void input(){
  cin >> n >> m;
  repp(i,1,n){
    cin >> ar[i];
    tot += (ar[i] < 0);
  }
}

void t1(){
  ll sum1 = 0, sum2 = 0, red = 0;
  repp(i,1,n){
    if (ar[i] < 0) red = ar[i];
    else{
      if (red == 0) sum1 += ar[i];
      else sum2 += ar[i];
    }
  }
  if (m >= 2) cout << sum1+sum2 << endl;
  else cout << max(sum1,max(sum2,sum1+sum2+red)) << endl; 
  exit(0);
}

void knd(){
  ll ans = 0, cur = 0;
  repp(i,1,n){
    cur += ar[i];
    cur = max(cur,0LL);
    ans = max(ans,cur);
  }
  cout << ans << endl;
  exit(0);
}

void solve(){
  if (tot <= 1) t1();
  else if (m== 1) knd();
  ll dp[n+5][m+5], prec[n+5][n+5];
  repp(i,1,n){
    ll cur = 0, maxi = 0;
    repp(j,i,n){
      cur += ar[j];
      maxi = max(maxi,cur);
      cur = max(0LL,cur);
      prec[i][j] = maxi;
    }
  }
  memset(dp,0,sizeof(dp));
  repm(idx,n,1){
    repp(rem,1,m){
      dp[idx][rem] = dp[idx+1][rem];
      repp(i,idx,n){
        dp[idx][rem] = max(dp[idx][rem],prec[idx][i]+dp[i+1][rem-1]);
      }
    }
  }
  cout << dp[1][m] << endl;
}

int main(){
  ios_base::sync_with_stdio(0);
  cin.tie(NULL);
  cout.tie(NULL);
  //cin >> tc;
  while(tc--){
    input();
    solve();
  }
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 27 ms 5324 KB Output is correct
2 Correct 28 ms 5432 KB Output is correct
3 Correct 28 ms 5520 KB Output is correct
4 Correct 29 ms 5556 KB Output is correct
5 Correct 32 ms 5468 KB Output is correct
6 Correct 29 ms 5328 KB Output is correct
7 Correct 28 ms 5264 KB Output is correct
8 Correct 29 ms 5408 KB Output is correct
9 Correct 27 ms 5292 KB Output is correct
10 Correct 32 ms 5436 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 2624 KB Output is correct
2 Correct 23 ms 3796 KB Output is correct
3 Correct 18 ms 3624 KB Output is correct
4 Correct 18 ms 3736 KB Output is correct
5 Correct 28 ms 5384 KB Output is correct
6 Correct 18 ms 3644 KB Output is correct
7 Correct 18 ms 3756 KB Output is correct
8 Correct 29 ms 5436 KB Output is correct
9 Correct 28 ms 5340 KB Output is correct
10 Correct 18 ms 3876 KB Output is correct

Subtask #3
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 33 ms 2632 KB Output is correct
2 Correct 31 ms 5504 KB Output is correct
3 Correct 31 ms 5580 KB Output is correct
4 Correct 31 ms 5560 KB Output is correct
5 Correct 33 ms 5620 KB Output is correct
6 Correct 31 ms 5584 KB Output is correct
7 Correct 30 ms 5608 KB Output is correct
8 Correct 35 ms 5548 KB Output is correct
9 Correct 31 ms 5672 KB Output is correct
10 Correct 32 ms 5652 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 340 KB Output is correct

Subtask #5
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 3 ms 1108 KB Output is correct
12 Correct 4 ms 1008 KB Output is correct
13 Correct 2 ms 852 KB Output is correct
14 Correct 3 ms 980 KB Output is correct
15 Correct 3 ms 980 KB Output is correct
16 Correct 2 ms 852 KB Output is correct
17 Correct 3 ms 980 KB Output is correct
18 Correct 1 ms 852 KB Output is correct
19 Correct 1 ms 852 KB Output is correct
20 Correct 2 ms 1060 KB Output is correct

Subtask #6
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 3 ms 1108 KB Output is correct
12 Correct 4 ms 1008 KB Output is correct
13 Correct 2 ms 852 KB Output is correct
14 Correct 3 ms 980 KB Output is correct
15 Correct 3 ms 980 KB Output is correct
16 Correct 2 ms 852 KB Output is correct
17 Correct 3 ms 980 KB Output is correct
18 Correct 1 ms 852 KB Output is correct
19 Correct 1 ms 852 KB Output is correct
20 Correct 2 ms 1060 KB Output is correct
21 Correct 610 ms 33120 KB Output is correct
22 Execution timed out 1058 ms 55252 KB Time limit exceeded
23 Halted 0 ms 0 KB -

Subtask #7
0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 27 ms 5324 KB Output is correct
2 Correct 28 ms 5432 KB Output is correct
3 Correct 28 ms 5520 KB Output is correct
4 Correct 29 ms 5556 KB Output is correct
5 Correct 32 ms 5468 KB Output is correct
6 Correct 29 ms 5328 KB Output is correct
7 Correct 28 ms 5264 KB Output is correct
8 Correct 29 ms 5408 KB Output is correct
9 Correct 27 ms 5292 KB Output is correct
10 Correct 32 ms 5436 KB Output is correct
11 Correct 18 ms 2624 KB Output is correct
12 Correct 23 ms 3796 KB Output is correct
13 Correct 18 ms 3624 KB Output is correct
14 Correct 18 ms 3736 KB Output is correct
15 Correct 28 ms 5384 KB Output is correct
16 Correct 18 ms 3644 KB Output is correct
17 Correct 18 ms 3756 KB Output is correct
18 Correct 29 ms 5436 KB Output is correct
19 Correct 28 ms 5340 KB Output is correct
20 Correct 18 ms 3876 KB Output is correct
21 Correct 33 ms 2632 KB Output is correct
22 Correct 31 ms 5504 KB Output is correct
23 Correct 31 ms 5580 KB Output is correct
24 Correct 31 ms 5560 KB Output is correct
25 Correct 33 ms 5620 KB Output is correct
26 Correct 31 ms 5584 KB Output is correct
27 Correct 30 ms 5608 KB Output is correct
28 Correct 35 ms 5548 KB Output is correct
29 Correct 31 ms 5672 KB Output is correct
30 Correct 32 ms 5652 KB Output is correct
31 Correct 1 ms 212 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 1 ms 340 KB Output is correct
36 Correct 0 ms 340 KB Output is correct
37 Correct 0 ms 340 KB Output is correct
38 Correct 0 ms 340 KB Output is correct
39 Correct 1 ms 212 KB Output is correct
40 Correct 0 ms 340 KB Output is correct
41 Correct 3 ms 1108 KB Output is correct
42 Correct 4 ms 1008 KB Output is correct
43 Correct 2 ms 852 KB Output is correct
44 Correct 3 ms 980 KB Output is correct
45 Correct 3 ms 980 KB Output is correct
46 Correct 2 ms 852 KB Output is correct
47 Correct 3 ms 980 KB Output is correct
48 Correct 1 ms 852 KB Output is correct
49 Correct 1 ms 852 KB Output is correct
50 Correct 2 ms 1060 KB Output is correct
51 Correct 610 ms 33120 KB Output is correct
52 Execution timed out 1058 ms 55252 KB Time limit exceeded
53 Halted 0 ms 0 KB -