oj.uz

Submission #1111393

# Submission time Handle Problem Language Result Execution time Memory
1111393 2024-11-12T08:06:53 Z SuperVOI Feast (NOI19_feast) C++14
71 / 100
 33 ms 63580 KB 
#include <bits/stdc++.h>
#define fast ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#define ll long long
#define el '\n'
#define fu(i,a,b) for(int i = (a), _b = (b); i <= _b; ++i)
#define fd(i,a,b) for(int i = (a), _b = (b); i >= _b; --i)
#define fa(x, a) for(auto x : a)
#define re(i, n) fu(i,0,n - 1)
#define vi vector<int>
#define vvi vector<vi>
#define vll vector<ll>
#define vvll vector<vll>
#define pb push_back
#define pf push_front
#define pof pop_front
#define pob pop_back
#define sz(a) (int)(a.size())
#define all(a) a.begin(), a.end()
#define pii pair<int,int>
#define pll pair<ll,ll>
#define vpii vector<pii>
#define vvpii vector<vpii>
#define vpll vector<pll>
#define vvpll vector<vpll>
#define MP make_pair
#define fi first
#define se second
#define MASK(i) (1LL << (i))
#define db double
#define ld long double
#define squr(a) 1LL * (a) * (a)

using namespace std;

const int maxn = 3e5;
const ll  lim  = 1e9;
const ll  inf  = 1e18;
const ll  mod  = 1e9 + 7; /// 1007050321
const ll  base = 33137;

template<class T1,class T2>
bool maximize(T1 &a,T2 b){
    if(a < b){
        a = b;
        return 1;
    }
    return 0;
}

template<class T1,class T2>
bool minimize(T1 &a,T2 b){
    if(a > b){
        a = b;
        return 1;
    }
    return 0;
}

template<class T1,class T2>
void Add(T1 &a,T2 b){
    a += b;
    if(a >= mod) a -= mod;
    if(a < 0) a += mod;
    return;
}

template<class T1>
void temp_compress(vector<T1> &a){
    sort(all(a));
    a.resize(unique(all(a)) - a.begin());
    return;
}

ll max(ll a,ll b){return (a > b ? a : b);}
ll min(ll a,ll b){return (a < b ? a : b);}
bool takeBit(ll th,ll n){return ((n >> th) & 1LL);}
ll gcd(ll a,ll b){return (__gcd(a, b));}

mt19937_64 rd(chrono::steady_clock::now().time_since_epoch(). count());
#define rand rd

ll ran(ll lo,ll hi){
    return (lo + rand() % (hi - lo + 1));
}

//int dx[8] = {-1, -1, -1, 0, 0, 1, 1, 1};
//int dy[8] = {-1, 0, 1, -1, 1, -1, 0, 1};
int dx[3] = {1, 0, 0};
int dy[3] = {0, -1, 1};

int n,m;
ll a[maxn + 5];

bool check_sub1(){
    fu(i,1,n) if(a[i] < 0) return 0;
    return 1;
}

namespace sub1 {
    void solve(){
        ll sum = 0LL;
        fu(i,1,n) sum += a[i];
        cout<<sum;
        return;
    }
}

bool check_sub2(){
    int cnt = 0;
    fu(i,1,n) if(a[i] < 0) ++cnt;
    return (cnt == 1);
}

namespace sub2 {
    void solve(){
        int pos = 0;
        fu(i,1,n) if(a[i] < 0){
            pos = i;
            break;
        }
        ll sum1 = 0LL, sum2 = 0LL;
        fu(i,1,pos - 1) sum1 += a[i];
        fu(i,pos + 1,n) sum2 += a[i];
        if(m > 1) cout<<sum1 + sum2;
        else{
            ll sum = sum1 + sum2 + a[pos];
            cout<<max({sum, sum1, sum2});
        }
        return;
    }
}

bool check_sub3(){
    return (m == 1);
}

namespace sub3 {
    void solve(){
        ll res = 0LL, sum = 0LL;
        fu(i,1,n){
            sum += a[i];
            maximize(res, sum);
            maximize(sum, 0LL);
        }
        cout<<res;
        return;
    }
}

bool check_sub5(){
    return (n <= 300);
}

namespace sub5 {
    ll dp[305][305], pre[305];

    void solve(){
        fu(i,1,n) pre[i] = pre[i - 1] + a[i];
        memset(dp, -0x3f, sizeof dp);
        fu(i,0,n) dp[i][0] = 0LL;
        re(i, n) fu(j,0,min(i, m)){
            if(j < m) maximize(dp[i][j + 1], dp[i][j]);
            maximize(dp[i + 1][j], dp[i][j]);
            if(j < m) fu(k,i + 1,n) maximize(dp[k][j + 1], dp[i][j] + pre[k] - pre[i]);
        }
        // fu(i,1,n){
        //     cout<<"Position : "<<i<<el;
        //     fu(j,1,min(i, m)) cout<<dp[i][j]<<' ';
        //     cout<<el;
        // }
        cout<<dp[n][m];
        return;
    }
}

bool check_sub6(){
    return (n <= 2000);
}

namespace sub6 {
    ll dp[2005][2005], g[2005][2005];
    void solve(){
        fu(i,1,n) fu(j,1,m){
            dp[i][j] = dp[i - 1][j] + a[i];
            if(j) maximize(dp[i][j], g[i - 1][j - 1] + a[i]);
            g[i][j] = max(g[i - 1][j], dp[i][j]);
        }
        ll res = 0LL;
        fu(j,1,m) maximize(res, g[n][j]); 
        cout<<res;
        return;
    }
}

void input(){
    cin>>n>>m;
    fu(i,1,n) cin>>a[i];
    return;
}

int main(){
    fast
    // freopen("feas.INP", "r", stdin);
    // freopen("feas.OUT", "w", stdout);
    // clock_t start = clock();

    input();
    if(check_sub1()) return sub1::solve(), 0;
    if(check_sub2()) return sub2::solve(), 0;
    if(check_sub3()) return sub3::solve(), 0;
    if(check_sub5()) return sub5::solve(), 0;
    if(check_sub6()) return sub6::solve(), 0;

    // cerr<<el<<"Time elapsed : "<<(clock() - start)<<el;
    return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 4432 KB Output is correct
2 Correct 20 ms 4580 KB Output is correct
3 Correct 20 ms 4688 KB Output is correct
4 Correct 19 ms 4576 KB Output is correct
5 Correct 20 ms 4856 KB Output is correct
6 Correct 19 ms 4572 KB Output is correct
7 Correct 19 ms 4432 KB Output is correct
8 Correct 20 ms 4688 KB Output is correct
9 Correct 19 ms 4432 KB Output is correct
10 Correct 19 ms 4688 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 4688 KB Output is correct
2 Correct 13 ms 4688 KB Output is correct
3 Correct 12 ms 4432 KB Output is correct
4 Correct 13 ms 4688 KB Output is correct
5 Correct 25 ms 4580 KB Output is correct
6 Correct 13 ms 4688 KB Output is correct
7 Correct 13 ms 4700 KB Output is correct
8 Correct 20 ms 4688 KB Output is correct
9 Correct 24 ms 4432 KB Output is correct
10 Correct 13 ms 4700 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 4688 KB Output is correct
2 Correct 22 ms 4680 KB Output is correct
3 Correct 22 ms 4860 KB Output is correct
4 Correct 22 ms 4688 KB Output is correct
5 Correct 22 ms 4688 KB Output is correct
6 Correct 30 ms 4704 KB Output is correct
7 Correct 22 ms 4704 KB Output is correct
8 Correct 22 ms 4576 KB Output is correct
9 Correct 33 ms 4568 KB Output is correct
10 Correct 25 ms 4680 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 1 ms 2384 KB Output is correct
3 Correct 2 ms 2384 KB Output is correct
4 Correct 1 ms 2384 KB Output is correct
5 Correct 1 ms 2384 KB Output is correct
6 Correct 1 ms 2384 KB Output is correct
7 Correct 1 ms 2384 KB Output is correct
8 Correct 1 ms 2384 KB Output is correct
9 Correct 1 ms 2556 KB Output is correct
10 Correct 1 ms 2384 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 1 ms 2384 KB Output is correct
3 Correct 2 ms 2384 KB Output is correct
4 Correct 1 ms 2384 KB Output is correct
5 Correct 1 ms 2384 KB Output is correct
6 Correct 1 ms 2384 KB Output is correct
7 Correct 1 ms 2384 KB Output is correct
8 Correct 1 ms 2384 KB Output is correct
9 Correct 1 ms 2556 KB Output is correct
10 Correct 1 ms 2384 KB Output is correct
11 Correct 3 ms 2384 KB Output is correct
12 Correct 3 ms 2552 KB Output is correct
13 Correct 2 ms 2384 KB Output is correct
14 Correct 4 ms 2384 KB Output is correct
15 Correct 2 ms 2384 KB Output is correct
16 Correct 2 ms 2552 KB Output is correct
17 Correct 3 ms 2384 KB Output is correct
18 Correct 1 ms 2552 KB Output is correct
19 Correct 2 ms 2384 KB Output is correct
20 Correct 2 ms 2384 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 1 ms 2384 KB Output is correct
3 Correct 2 ms 2384 KB Output is correct
4 Correct 1 ms 2384 KB Output is correct
5 Correct 1 ms 2384 KB Output is correct
6 Correct 1 ms 2384 KB Output is correct
7 Correct 1 ms 2384 KB Output is correct
8 Correct 1 ms 2384 KB Output is correct
9 Correct 1 ms 2556 KB Output is correct
10 Correct 1 ms 2384 KB Output is correct
11 Correct 3 ms 2384 KB Output is correct
12 Correct 3 ms 2552 KB Output is correct
13 Correct 2 ms 2384 KB Output is correct
14 Correct 4 ms 2384 KB Output is correct
15 Correct 2 ms 2384 KB Output is correct
16 Correct 2 ms 2552 KB Output is correct
17 Correct 3 ms 2384 KB Output is correct
18 Correct 1 ms 2552 KB Output is correct
19 Correct 2 ms 2384 KB Output is correct
20 Correct 2 ms 2384 KB Output is correct
21 Correct 7 ms 62544 KB Output is correct
22 Correct 12 ms 63580 KB Output is correct
23 Correct 8 ms 62800 KB Output is correct
24 Correct 9 ms 62544 KB Output is correct
25 Correct 9 ms 62800 KB Output is correct
26 Correct 9 ms 62544 KB Output is correct
27 Correct 8 ms 62800 KB Output is correct
28 Correct 8 ms 62544 KB Output is correct
29 Correct 8 ms 62452 KB Output is correct
30 Correct 7 ms 62288 KB Output is correct

Subtask #7
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 4432 KB Output is correct
2 Correct 20 ms 4580 KB Output is correct
3 Correct 20 ms 4688 KB Output is correct
4 Correct 19 ms 4576 KB Output is correct
5 Correct 20 ms 4856 KB Output is correct
6 Correct 19 ms 4572 KB Output is correct
7 Correct 19 ms 4432 KB Output is correct
8 Correct 20 ms 4688 KB Output is correct
9 Correct 19 ms 4432 KB Output is correct
10 Correct 19 ms 4688 KB Output is correct
11 Correct 13 ms 4688 KB Output is correct
12 Correct 13 ms 4688 KB Output is correct
13 Correct 12 ms 4432 KB Output is correct
14 Correct 13 ms 4688 KB Output is correct
15 Correct 25 ms 4580 KB Output is correct
16 Correct 13 ms 4688 KB Output is correct
17 Correct 13 ms 4700 KB Output is correct
18 Correct 20 ms 4688 KB Output is correct
19 Correct 24 ms 4432 KB Output is correct
20 Correct 13 ms 4700 KB Output is correct
21 Correct 22 ms 4688 KB Output is correct
22 Correct 22 ms 4680 KB Output is correct
23 Correct 22 ms 4860 KB Output is correct
24 Correct 22 ms 4688 KB Output is correct
25 Correct 22 ms 4688 KB Output is correct
26 Correct 30 ms 4704 KB Output is correct
27 Correct 22 ms 4704 KB Output is correct
28 Correct 22 ms 4576 KB Output is correct
29 Correct 33 ms 4568 KB Output is correct
30 Correct 25 ms 4680 KB Output is correct
31 Correct 1 ms 2384 KB Output is correct
32 Correct 1 ms 2384 KB Output is correct
33 Correct 2 ms 2384 KB Output is correct
34 Correct 1 ms 2384 KB Output is correct
35 Correct 1 ms 2384 KB Output is correct
36 Correct 1 ms 2384 KB Output is correct
37 Correct 1 ms 2384 KB Output is correct
38 Correct 1 ms 2384 KB Output is correct
39 Correct 1 ms 2556 KB Output is correct
40 Correct 1 ms 2384 KB Output is correct
41 Correct 3 ms 2384 KB Output is correct
42 Correct 3 ms 2552 KB Output is correct
43 Correct 2 ms 2384 KB Output is correct
44 Correct 4 ms 2384 KB Output is correct
45 Correct 2 ms 2384 KB Output is correct
46 Correct 2 ms 2552 KB Output is correct
47 Correct 3 ms 2384 KB Output is correct
48 Correct 1 ms 2552 KB Output is correct
49 Correct 2 ms 2384 KB Output is correct
50 Correct 2 ms 2384 KB Output is correct
51 Correct 7 ms 62544 KB Output is correct
52 Correct 12 ms 63580 KB Output is correct
53 Correct 8 ms 62800 KB Output is correct
54 Correct 9 ms 62544 KB Output is correct
55 Correct 9 ms 62800 KB Output is correct
56 Correct 9 ms 62544 KB Output is correct
57 Correct 8 ms 62800 KB Output is correct
58 Correct 8 ms 62544 KB Output is correct
59 Correct 8 ms 62452 KB Output is correct
60 Correct 7 ms 62288 KB Output is correct
61 Incorrect 26 ms 6440 KB Output isn't correct
62 Halted 0 ms 0 KB -