Submission #394460

#	Time	Username	Problem	Language	Result	Execution time	Memory
394460		rocks03	Feast (NOI19_feast)	C++14	0 / 100	85 ms	464 KiB

feast

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define ff first
#define ss second
#define pb push_back
#define SZ(x) ((int)(x).size())
#define all(x) x.begin(), x.end()
#define debug(x) cout << #x << ": " << x << " "
#define nl cout << "\n"
#define rep(i, a, b) for(int i = (a); i < (b); i++)
#define per(i, a, b) for(int i = (a); i >= (b); i--)
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

const int MAXN = 300+100;
const int MAXK = 300+100;
int N, K, a[MAXN];
ll pr[MAXN], dp[MAXN], dp2[MAXN];

void solve(){
    cin >> N >> K;
    rep(i, 1, N + 1){
        cin >> a[i];
        pr[i] = pr[i - 1] + a[i];
    }
    rep(k, 1, K + 1){
        memset(dp2, 0, sizeof(dp2));
        rep(i, 1, N + 1){
            dp2[i] = dp2[i - 1];
            rep(j, 1, i){
                dp2[i] = max(dp2[i], dp[j - 1] + pr[i] - pr[j - 1]);
            }
        }
        swap(dp, dp2);
    }
    cout << dp[N];
}
 
int main(){
    ios_base::sync_with_stdio(false), cin.tie(nullptr);
    solve();
    return 0;
}

• Subtask 1: 0 / 4
• Subtask 2: 0 / 8
• Subtask 3: 0 / 18
• Subtask 4: 0 / 10
• Subtask 5: 0 / 11
• Subtask 6: 0 / 20
• Subtask 7: 0 / 29