oj.uz

Submission #611558

# Submission time Handle Problem Language Result Execution time Memory
611558 2022-07-29T05:39:31 Z Theo830 Art Exhibition (JOI18_art) C++17
100 / 100
 215 ms 36784 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll INF = 1e18+7;
const ll MOD = 998244353;
typedef pair<ll,ll> ii;
#define iii pair<ii,ll>
#define f(i,a,b) for(ll i = a;i < b;i++)
#define pb push_back
#define vll vector<ll>
#define F first
#define S second
#define all(x) (x).begin(), (x).end()
///I hope I will get uprating and don't make mistakes
///I will never stop programming
///sqrt(-1) Love C++
///Please don't hack me
///@TheofanisOrfanou Theo830
///Think different approaches (bs,dp,greedy,graphs,shortest paths,mst)
///Stay Calm
///Look for special cases
///Beware of overflow and array bounds
///Think the problem backwards
///Training
int main(void){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    ll ans = 0;
    ll n;
    cin>>n;
    vector<ii>arr;
    f(i,0,n){
        ll a,b;
        cin>>a>>b;
        arr.pb(ii(a,b));
    }
    sort(all(arr));
    vll ar;
    ll last = 0;
    ll pre[n+1] = {0};
    f(i,0,n){
        ar.pb(arr[i].S - arr[i].F + last);
        last = arr[i].F;
        pre[i+1] = pre[i] + ar.back();
    }
    ll suf[n];
    suf[n-1] = pre[n];
    for(ll i = n-2;i >= 0;i--){
        suf[i] = max(suf[i+1],pre[i+1]);
    }
    last = 0;
    f(i,0,n){
        ans = max(ans,suf[i] - pre[i] + arr[i].F - last);
        last = arr[i].F;
    }
    cout<<ans<<"\n";
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 320 KB Output is correct
3 Correct 0 ms 324 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 320 KB Output is correct
3 Correct 0 ms 324 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 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 1 ms 340 KB Output is correct
19 Correct 0 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 1 ms 340 KB Output is correct
23 Correct 1 ms 328 KB Output is correct
24 Correct 1 ms 328 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 320 KB Output is correct
3 Correct 0 ms 324 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 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 1 ms 340 KB Output is correct
19 Correct 0 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 1 ms 340 KB Output is correct
23 Correct 1 ms 328 KB Output is correct
24 Correct 1 ms 328 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 2 ms 724 KB Output is correct
28 Correct 3 ms 716 KB Output is correct
29 Correct 3 ms 724 KB Output is correct
30 Correct 2 ms 724 KB Output is correct
31 Correct 3 ms 716 KB Output is correct
32 Correct 3 ms 724 KB Output is correct
33 Correct 3 ms 712 KB Output is correct
34 Correct 2 ms 744 KB Output is correct
35 Correct 3 ms 724 KB Output is correct
36 Correct 3 ms 724 KB Output is correct
37 Correct 3 ms 724 KB Output is correct
38 Correct 3 ms 724 KB Output is correct
39 Correct 2 ms 724 KB Output is correct
40 Correct 2 ms 724 KB Output is correct
41 Correct 2 ms 724 KB Output is correct
42 Correct 2 ms 712 KB Output is correct
43 Correct 3 ms 724 KB Output is correct
44 Correct 2 ms 724 KB Output is correct
45 Correct 2 ms 724 KB Output is correct
46 Correct 2 ms 700 KB Output is correct
47 Correct 2 ms 724 KB Output is correct
48 Correct 2 ms 724 KB Output is correct
49 Correct 2 ms 716 KB Output is correct
50 Correct 2 ms 724 KB Output is correct
51 Correct 2 ms 724 KB Output is correct

Subtask #4
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 320 KB Output is correct
3 Correct 0 ms 324 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 316 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 340 KB Output is correct
14 Correct 0 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 1 ms 340 KB Output is correct
19 Correct 0 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 1 ms 340 KB Output is correct
23 Correct 1 ms 328 KB Output is correct
24 Correct 1 ms 328 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 2 ms 724 KB Output is correct
28 Correct 3 ms 716 KB Output is correct
29 Correct 3 ms 724 KB Output is correct
30 Correct 2 ms 724 KB Output is correct
31 Correct 3 ms 716 KB Output is correct
32 Correct 3 ms 724 KB Output is correct
33 Correct 3 ms 712 KB Output is correct
34 Correct 2 ms 744 KB Output is correct
35 Correct 3 ms 724 KB Output is correct
36 Correct 3 ms 724 KB Output is correct
37 Correct 3 ms 724 KB Output is correct
38 Correct 3 ms 724 KB Output is correct
39 Correct 2 ms 724 KB Output is correct
40 Correct 2 ms 724 KB Output is correct
41 Correct 2 ms 724 KB Output is correct
42 Correct 2 ms 712 KB Output is correct
43 Correct 3 ms 724 KB Output is correct
44 Correct 2 ms 724 KB Output is correct
45 Correct 2 ms 724 KB Output is correct
46 Correct 2 ms 700 KB Output is correct
47 Correct 2 ms 724 KB Output is correct
48 Correct 2 ms 724 KB Output is correct
49 Correct 2 ms 716 KB Output is correct
50 Correct 2 ms 724 KB Output is correct
51 Correct 2 ms 724 KB Output is correct
52 Correct 195 ms 36588 KB Output is correct
53 Correct 196 ms 36560 KB Output is correct
54 Correct 180 ms 36568 KB Output is correct
55 Correct 209 ms 36764 KB Output is correct
56 Correct 181 ms 36604 KB Output is correct
57 Correct 192 ms 36680 KB Output is correct
58 Correct 185 ms 36584 KB Output is correct
59 Correct 177 ms 36784 KB Output is correct
60 Correct 208 ms 36564 KB Output is correct
61 Correct 184 ms 36420 KB Output is correct
62 Correct 195 ms 36564 KB Output is correct
63 Correct 215 ms 36644 KB Output is correct
64 Correct 181 ms 36548 KB Output is correct
65 Correct 184 ms 36600 KB Output is correct
66 Correct 201 ms 36640 KB Output is correct
67 Correct 189 ms 36564 KB Output is correct
68 Correct 193 ms 36656 KB Output is correct