Submission #646181

#	Time	Username	Problem	Language	Result	Execution time	Memory
646181		kith14	Feast (NOI19_feast)	C++17	21 / 100	1093 ms	31956 KiB

feast

#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 = 2e3+5, MOD = 1e9+7;
ll tc = 1, n, m, ar[N], br[N], dp[N][N];
string s, s1, s2, ye = "YA", no = "TIDAK";

void input(){
  cin >> n >> m;
  repp(i,1,n) cin >> ar[i];
}

ll rec(ll idx, ll rem){
  if (rem == 0) return 0;
  if (idx > n) return 0;
  if (dp[idx][rem] != -1) return dp[idx][rem];

  ll ret = rec(idx+1,rem), cur = 0 , maxi = 0;
  repp(i,idx,n){
    cur += ar[i];
    maxi = max(maxi,cur);
    if (cur < 0) cur = 0;
    ret = max(ret,maxi+rec(i+1,rem-1));
  }
  //cout << idx << " " << rem << " " << ret << endl;
  return dp[idx][rem] = ret;
}

void solve(){
  memset(dp,-1,sizeof(dp));
  cout << rec(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: 0 / 4
• Subtask 2: 0 / 8
• Subtask 3: 0 / 18
• Subtask 4: 10 / 10
• Subtask 5: 11 / 11
• Subtask 6: 0 / 20
• Subtask 7: 0 / 29