oj.uz

Submission #877828

# Submission time Handle Problem Language Result Execution time Memory
877828 2023-11-23T16:53:57 Z raul2008487 Art Exhibition (JOI18_art) C++17
100 / 100
 149 ms 36708 KB 
#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define eb emplace_back
#define vl vector<ll>
#define fi first
#define se second
#define in insert
#define mpr make_pair
#define lg(x) __lg(x)
#define bpc(x) __builtin_popcount(x)
#define all(v) v.begin(), v.end()
#define endl "\n"

using namespace std;
const int sz = 2e6+6;
const int mod = 1e9+7;
const ll inf = 1000000000;
void solve(){
    ll n, i, j, ans = 0, res = 0, sum = 0;
    cin>>n;
    vl a(n), b(n), pre(n+1), suf(n+1);
    vector<pair<ll,ll>> v;
    for(i=0;i<n;i++){
        cin>>a[i]>>b[i];
        v.pb({a[i], b[i]});
        ans = max(ans, b[i]);
        sum += b[i];
    }
    sort(all(v));
    sum = (sum - (v.back().fi - v[0].fi));
    ///cout << sum << endl;
    pre[0] = (v[1].fi - v[0].fi - v[0].se);
    for(i=1;i<n-1;i++){
        pre[i] = pre[i-1] + (v[i+1].fi - v[i].fi - v[i].se);
        //pre[i] = max(pre[i], pre[i-1]);
    }
    for(i=1;i<n-1;i++){
        pre[i] = max(pre[i-1], pre[i]);
    }
    res = max(res, pre[n-2]);
    suf[n-1] = ((v[n-1].fi - v[n-2].fi) - v[n-1].se);
    for(i=n-2;i>0;i--){
        suf[i] = suf[i+1] + (v[i].fi - v[i-1].fi - v[i].se);
    }
    for(i=n-2;i>0;i--){
        suf[i] = max(suf[i], suf[i+1]);
    }
    res = max(res, suf[1]);
    //cout << pre[n-2] << ' ' << suf[1] << endl;
    for(i=1;i<n-1;i++){
        res = max(res, (pre[i-1] + suf[i+1]));
    }
    cout << (sum + res) << endl;

}
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    //precomp();
    ll tst=1;
    //cin>>tst;
    while(tst--){
        solve();
    }
}
/*
6
4 1
1 5
10 3
9 1
4 2
5 3

*/

Compilation message

art.cpp: In function 'void solve()':
art.cpp:20:14: warning: unused variable 'j' [-Wunused-variable]
   20 |     ll n, i, j, ans = 0, res = 0, sum = 0;
      |              ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 456 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 456 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 460 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 456 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 460 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 2 ms 860 KB Output is correct
28 Correct 2 ms 984 KB Output is correct
29 Correct 2 ms 860 KB Output is correct
30 Correct 2 ms 856 KB Output is correct
31 Correct 2 ms 956 KB Output is correct
32 Correct 2 ms 860 KB Output is correct
33 Correct 2 ms 760 KB Output is correct
34 Correct 2 ms 756 KB Output is correct
35 Correct 2 ms 940 KB Output is correct
36 Correct 2 ms 860 KB Output is correct
37 Correct 2 ms 860 KB Output is correct
38 Correct 2 ms 860 KB Output is correct
39 Correct 2 ms 860 KB Output is correct
40 Correct 2 ms 860 KB Output is correct
41 Correct 2 ms 860 KB Output is correct
42 Correct 2 ms 860 KB Output is correct
43 Correct 2 ms 864 KB Output is correct
44 Correct 2 ms 864 KB Output is correct
45 Correct 2 ms 872 KB Output is correct
46 Correct 2 ms 868 KB Output is correct
47 Correct 2 ms 764 KB Output is correct
48 Correct 2 ms 860 KB Output is correct
49 Correct 2 ms 860 KB Output is correct
50 Correct 2 ms 860 KB Output is correct
51 Correct 2 ms 860 KB Output is correct

Subtask #4
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 456 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 460 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 2 ms 860 KB Output is correct
28 Correct 2 ms 984 KB Output is correct
29 Correct 2 ms 860 KB Output is correct
30 Correct 2 ms 856 KB Output is correct
31 Correct 2 ms 956 KB Output is correct
32 Correct 2 ms 860 KB Output is correct
33 Correct 2 ms 760 KB Output is correct
34 Correct 2 ms 756 KB Output is correct
35 Correct 2 ms 940 KB Output is correct
36 Correct 2 ms 860 KB Output is correct
37 Correct 2 ms 860 KB Output is correct
38 Correct 2 ms 860 KB Output is correct
39 Correct 2 ms 860 KB Output is correct
40 Correct 2 ms 860 KB Output is correct
41 Correct 2 ms 860 KB Output is correct
42 Correct 2 ms 860 KB Output is correct
43 Correct 2 ms 864 KB Output is correct
44 Correct 2 ms 864 KB Output is correct
45 Correct 2 ms 872 KB Output is correct
46 Correct 2 ms 868 KB Output is correct
47 Correct 2 ms 764 KB Output is correct
48 Correct 2 ms 860 KB Output is correct
49 Correct 2 ms 860 KB Output is correct
50 Correct 2 ms 860 KB Output is correct
51 Correct 2 ms 860 KB Output is correct
52 Correct 143 ms 36556 KB Output is correct
53 Correct 142 ms 36492 KB Output is correct
54 Correct 139 ms 36632 KB Output is correct
55 Correct 140 ms 36708 KB Output is correct
56 Correct 149 ms 36624 KB Output is correct
57 Correct 138 ms 36536 KB Output is correct
58 Correct 137 ms 36580 KB Output is correct
59 Correct 139 ms 36536 KB Output is correct
60 Correct 146 ms 36532 KB Output is correct
61 Correct 146 ms 36536 KB Output is correct
62 Correct 140 ms 36600 KB Output is correct
63 Correct 136 ms 36520 KB Output is correct
64 Correct 140 ms 36612 KB Output is correct
65 Correct 145 ms 36536 KB Output is correct
66 Correct 139 ms 36684 KB Output is correct
67 Correct 147 ms 36700 KB Output is correct
68 Correct 142 ms 36536 KB Output is correct