Submission #570516

#	Time	Username	Problem	Language	Result	Execution time	Memory
570516		MohammadAghil	Triple Jump (JOI19_jumps)	C++14	19 / 100	726 ms	401880 KiB

jumps

      #include <bits/stdc++.h>
//   #pragma GCC optimize ("Ofast,unroll-loops")
// #pragma GCC target ("avx2")
    using namespace std;
  typedef long long ll;
    typedef pair<long double, ll> pp;
     #define er(args ...) cerr << __LINE__ << ": ", err(new istringstream(string(#args)), args), cerr << endl
       #define per(i,r,l) for(int i = (r); i >= (l); i--)
         #define rep(i,l,r) for(int i = (l); i < (r); i++)
           #define all(x) x.begin(), x.end()
              #define sz(x) (int)(x).size()
                  #define pb push_back
                      #define ss second
                           #define ff first
                                   void err(istringstream *iss){}template<typename T,typename ...Args> void err(istringstream *iss,const T &_val, const Args&...args){string _name;*iss>>_name;if(_name.back()==',')_name.pop_back();cerr<<_name<<" = "<<_val<<", ",err(iss,args...);}
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const ll mod = 998244353, maxn = 5e3 + 5, lg = 10, inf = ll(1e9) + 5;
ll pw(ll a,ll b,ll md=mod){if(!b)return 1;ll k=pw(a,b>>1ll);return k*k%md*(b&1ll?a:1)%md;} 

ll n, q, a[maxn]; 

void slv2(){
     vector<vector<ll>> mx(n, vector<ll>(n, -inf));
     rep(i,0,n){
          mx[i][i] = a[i]; 
          rep(j,i+1,n) mx[i][j] = max(mx[i][j-1], a[j]);
     }
     vector<vector<ll>> ans(n, vector<ll>(n, -inf));
     rep(l,3,n+1){
          rep(i,0,n-l+1){
               int j = i + l - 1;
               ans[i][j] = max({ans[i+1][j], ans[i][j-1], a[i] + a[j] + mx[i+1][(i+j)>>1]});
          }
     }
     while(q--){
          int l, r; cin >> l >> r;
          cout << ans[--l][--r] << '\n';
     }
}

int main(){
     cin.tie(0) -> sync_with_stdio(0);
     cin >> n;
     rep(i,0,n) cin >> a[i];
     cin >> q;
     slv2();
     return 0; 
}

• Subtask 1: 5 / 5
• Subtask 2: 14 / 14
• Subtask 3: 0 / 27
• Subtask 4: 0 / 54