oj.uz

Submission #688467

# Submission time Handle Problem Language Result Execution time Memory
688467 2023-01-27T13:36:21 Z luka1234 Divide and conquer (IZhO14_divide) C++14
100 / 100
 133 ms 7580 KB 
#include <bits/stdc++.h>
#define ll long long
#define ff first
#define ss second
#define pii pair<int,int>
#define pll pair<ll,ll>
#define pb push_back
#define epb emplace_back
#define ull unsigned ll
using namespace std;
ll t[400001];
ll n;
ll prefg[100001];
ll prefe[100001];
ll a[100001];
void update(ll v,ll tl,ll tr,ll pos,ll x){
	if(tl==tr){
		t[v]=x;
		return;
	}
	else{
		ll m=(tl+tr)/2;
		if(pos<=m){
			update(2*v,tl,m,pos,x);
		}
		else{
			update(2*v+1,m+1,tr,pos,x);
		}
		t[v]=max(t[2*v],t[2*v+1]);
	}
}
ll get(ll v,ll tl,ll tr,ll x){
	if(tl==tr){
		return tl;
	}
	ll f1=t[2*v];
	ll f2=t[2*v+1];
	ll m=(tl+tr)/2;
	ll pas=0;
	if(f2>=x){
		pas=get(2*v+1,m+1,tr,x);
	}
	else{
		if(f1>=x){
			pas=get(2*v,tl,m,x);
		}
		else{
			pas=-1;;
		}
	}
	return pas;
}
int main(){
    cin>>n;
    for(ll k=1;k<=n;k++){
    	ll x,y,z;
    	cin>>x>>y>>z;
    	a[k]=x;
    	prefe[k]=prefe[k-1]+z;
    	prefg[k]=prefg[k-1]+y;
    	ll f=prefe[k]-a[k];
    	update(1,1,n,k,f);
	}
	ll mx=0;
	for(ll k=1;k<=n;k++){
		ll f=prefe[k-1]-a[k];
		ll ind=get(1,1,n,f);
		if(ind>=k){
			ll gl=prefg[ind]-prefg[k-1];
			mx=max(mx,gl);
		}
	}
	cout<<mx;
    return 0;
}

Subtask #1
17.0 / 17.0

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

Subtask #2
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 2 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 2 ms 340 KB Output is correct
23 Correct 5 ms 468 KB Output is correct
24 Correct 6 ms 484 KB Output is correct

Subtask #3
52.0 / 52.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 2 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 2 ms 340 KB Output is correct
23 Correct 5 ms 468 KB Output is correct
24 Correct 6 ms 484 KB Output is correct
25 Correct 4 ms 468 KB Output is correct
26 Correct 7 ms 740 KB Output is correct
27 Correct 9 ms 980 KB Output is correct
28 Correct 47 ms 3492 KB Output is correct
29 Correct 54 ms 3688 KB Output is correct
30 Correct 120 ms 7580 KB Output is correct
31 Correct 87 ms 6404 KB Output is correct
32 Correct 92 ms 6452 KB Output is correct
33 Correct 86 ms 6196 KB Output is correct
34 Correct 85 ms 6288 KB Output is correct
35 Correct 103 ms 6828 KB Output is correct
36 Correct 133 ms 6948 KB Output is correct