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Submission #548257

# Submission time Handle Problem Language Result Execution time Memory
548257 2022-04-12T20:00:37 Z Deepesson Divide and conquer (IZhO14_divide) C++17
100 / 100
 112 ms 50680 KB 
#include <bits/stdc++.h>
#define MAX 10000000
using ll = long long;
struct node {
    int left,right;
    ll val;
};
const ll inf = (1LL<<60LL);
node mem[MAX*4];
int cur=1;
int alocar(void){
    int x = cur++;
    mem[x].val=inf;
    return x;
}
int inicio = alocar();
ll query(ll l,ll r,ll la=-inf,ll ra=inf,ll pos=inicio){
    if(!pos)return inf;
    if(l>ra||r<la)return inf;
  ///  std::cout<<"Explora "<<la<<" "<<ra<<" "<<l<<" "<<r<<"\n";
    if(la>=l&&ra<=r){
        return mem[pos].val;
    }
    ll m = (la+(4LL*inf)+ra)/2LL;
    m-=2LL*inf;
    return std::min(query(l,r,la,m,mem[pos].left),query(l,r,m+1,ra,mem[pos].right));
}
void update(ll t,ll k,ll la=-inf,ll ra=inf,ll pos=inicio){
    ll m = (la+(4LL*inf)+ra)/2LL;
    m-=2LL*inf;
    mem[pos].val=std::min(mem[pos].val,k);
   /// std::cout<<"Alterando "<<la<<" "<<ra<<" "<<" "<<m<<" "<<mem[pos].val<<"\n";
    if(la==ra)return;
    if(t>m){
        if(!mem[pos].right)mem[pos].right=alocar();
        update(t,k,m+1,ra,mem[pos].right);
    }else {
        if(!mem[pos].left)mem[pos].left=alocar();
        update(t,k,la,m,mem[pos].left);
    }
}

int main()
{
    std::ios::sync_with_stdio(false);
    std::cin.tie(0);
    std::cout.tie(0);
    int N;
    std::cin>>N;
    ll resp=0;
    ll prefouro=0;
    ll prefener=0;
    for(int i=0;i!=N;++i){
        ll pos,gold,energy;
        std::cin>>pos>>gold>>energy;
        update(pos-prefener,prefouro);
      ///  std::cout<<"Upd "<<pos-1-prefener<<" "<<prefouro<<"\n";
        prefener+=energy;
        ll valor = -pos+prefener;
        ll la = -valor,ra=inf;
        ll ponto = query(std::min(la,ra),std::max(la,ra));
        prefouro+=gold;
       /// std::cout<<la<<" "<<ra<<" "<<valor<<" "<<prefouro<<" "<<ponto<<"\n";
        resp=std::max(resp,prefouro-ponto);
    }
    std::cout<<resp<<"\n";
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 328 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 388 KB Output is correct
12 Correct 1 ms 340 KB Output is correct

Subtask #2
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 328 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 388 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 600 KB Output is correct
18 Correct 2 ms 852 KB Output is correct
19 Correct 2 ms 596 KB Output is correct
20 Correct 2 ms 596 KB Output is correct
21 Correct 2 ms 444 KB Output is correct
22 Correct 3 ms 600 KB Output is correct
23 Correct 7 ms 1832 KB Output is correct
24 Correct 8 ms 1880 KB Output is correct

Subtask #3
52.0 / 52.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 328 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 388 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 468 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 1 ms 600 KB Output is correct
18 Correct 2 ms 852 KB Output is correct
19 Correct 2 ms 596 KB Output is correct
20 Correct 2 ms 596 KB Output is correct
21 Correct 2 ms 444 KB Output is correct
22 Correct 3 ms 600 KB Output is correct
23 Correct 7 ms 1832 KB Output is correct
24 Correct 8 ms 1880 KB Output is correct
25 Correct 5 ms 1108 KB Output is correct
26 Correct 9 ms 2008 KB Output is correct
27 Correct 11 ms 3548 KB Output is correct
28 Correct 60 ms 17160 KB Output is correct
29 Correct 52 ms 17432 KB Output is correct
30 Correct 105 ms 50680 KB Output is correct
31 Correct 99 ms 34000 KB Output is correct
32 Correct 97 ms 34128 KB Output is correct
33 Correct 86 ms 17480 KB Output is correct
34 Correct 94 ms 11696 KB Output is correct
35 Correct 112 ms 24888 KB Output is correct
36 Correct 105 ms 24764 KB Output is correct