oj.uz

답안 #833322

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
833322 2023-08-22T04:34:08 Z veehj Feast (NOI19_feast) C++17
59 / 100
 263 ms 262144 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef long double ld;
#define F first
#define S second
#define pb push_back
#define sz(a) (int)a.size()
#define all(x) (x).begin(), (x).end()
int n, k;
vector<ll> a = {};

void s(){
    vector<vector<vector<ll>>> dp(n+1, vector<vector<ll>>(k+1, vector<ll>(2, -1e15)));
    ll ans=0;
    dp[0][0][1]=0; dp[0][0][0]=0;
    for(int i=1; i<=n; i++){
        dp[i][0][0]=0;
        for(int j=1; j<=k; j++){    
            dp[i][j][0]=max(dp[i-1][j][1], dp[i-1][j][0]);
            dp[i][j][1]=max(dp[i-1][j][1], dp[i-1][j-1][0])+a[i-1];
            // cout << i << ' ' << j << ' ' << dp[i][j][0] << ' ' << dp[i][j][1] << endl;
			ans=max({ans,dp[i][j][0],dp[i][j][1]});
        }
    }
    cout << ans << endl;
}

void f() {
  ll ans = 0, nw = 0;
  for (auto& u : a) {
    nw = max(0LL, nw + u);
    ans = max(ans, nw);
  }
  cout << ans << endl;
  return;
}

int main() {
  cin >> n >> k; int cntn=0;
  for (int i = 0; i < n; i++) {
    ll x;
    cin >> x;
    a.pb(x);
    if(x<0) cntn++;
  }
  if (k == 1) {
    f();
    return 0;
  }
  if(cntn<=1){
      ll cnt = 0;
    for (auto& u : a)
        if (u > 0) cnt += u;
    cout << cnt << endl;
  }
  s();
}

Subtask #1
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 263 ms 262144 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 47 ms 4412 KB Output is correct
2 Correct 48 ms 4480 KB Output is correct
3 Correct 47 ms 4460 KB Output is correct
4 Runtime error 217 ms 262144 KB Execution killed with signal 9
5 Halted 0 ms 0 KB -

Subtask #3
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 95 ms 4532 KB Output is correct
2 Correct 91 ms 4520 KB Output is correct
3 Correct 98 ms 4556 KB Output is correct
4 Correct 94 ms 4464 KB Output is correct
5 Correct 94 ms 4408 KB Output is correct
6 Correct 96 ms 4408 KB Output is correct
7 Correct 97 ms 4408 KB Output is correct
8 Correct 93 ms 4480 KB Output is correct
9 Correct 94 ms 4408 KB Output is correct
10 Correct 93 ms 4416 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 468 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 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 468 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 980 KB Output is correct
12 Correct 1 ms 1236 KB Output is correct
13 Correct 1 ms 596 KB Output is correct
14 Correct 1 ms 980 KB Output is correct
15 Correct 1 ms 724 KB Output is correct
16 Correct 1 ms 596 KB Output is correct
17 Correct 1 ms 1108 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 ms 340 KB Output is correct

Subtask #6
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 980 KB Output is correct
12 Correct 1 ms 1236 KB Output is correct
13 Correct 1 ms 596 KB Output is correct
14 Correct 1 ms 980 KB Output is correct
15 Correct 1 ms 724 KB Output is correct
16 Correct 1 ms 596 KB Output is correct
17 Correct 1 ms 1108 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 468 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 26 ms 21860 KB Output is correct
22 Correct 169 ms 179252 KB Output is correct
23 Correct 42 ms 41548 KB Output is correct
24 Correct 25 ms 23380 KB Output is correct
25 Correct 34 ms 32456 KB Output is correct
26 Correct 20 ms 19412 KB Output is correct
27 Correct 31 ms 30548 KB Output is correct
28 Correct 4 ms 3924 KB Output is correct
29 Correct 4 ms 3540 KB Output is correct
30 Correct 1 ms 724 KB Output is correct

Subtask #7
0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 263 ms 262144 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -