oj.uz

Submission #1104525

# Submission time Handle Problem Language Result Execution time Memory
1104525 2024-10-24T02:04:54 Z ljtunas Art Exhibition (JOI18_art) C++17
100 / 100
 188 ms 35656 KB 
// author : anhtun_hi , nqg
#include <bits/stdc++.h>
#define fi first
#define se second
#define all(x) x.begin(), x.end()
#define reset(h, v)    memset(h, v, sizeof h)
#define Forv(i, a)     for(auto& i : a)
#define For(i, a, b)   for(int i = a; i <= b; ++i)
#define Ford(i, a, b)  for(int i = a; i >= b; --i)
#define c_bit(i)     __builtin_popcountll(i)
#define Bit(mask, i)    ((mask >> i) & 1LL)
#define onbit(mask, i)  ((mask) bitor (1LL << i))
#define offbit(mask, i) ((mask) &~ (1LL << i))

using namespace std;
using ll = long long;
using ii = pair<ll, ll>;
using vi = vector<ll>;

void maximize(auto& a, auto b){a = max(a, b);}
void minimize(auto& a, auto b){a = min(a, b);}

//#define int long long

const int dx[] = {0, 0, +1, -1}, dy[] = {-1, +1, 0, 0};
const int MAXN = 1e6 + 10, LOG = 20, base = 311;
const int  inf = 1e9 + 5;
const  ll  mod = 1e9 + 7;
const  ll   oo = 1e18;

int n; ii a[MAXN]; ll f[MAXN];

void Solve(){
    cin >> n;
    For(i, 1, n) cin >> a[i].fi >> a[i].se;
    sort(a + 1, a + n + 1, greater<ii>());
    vector<ll> st(n * 2 + 5, +oo);
    auto update = [&](int i, ll val){
        for(st[i += n+1] = val; i > 1; i /= 2)
            st[i / 2] = min(st[i ^ 1], st[i]);
    };
    auto get = [&](int l, int r){
        ll res = oo;
        for(l+=n+1, r+=n+2; l < r; l/=2, r/=2){
            if(l & 1) minimize(res, st[l++]);
            if(r & 1) minimize(res, st[--r]);
        }
        return res;
    };
    ll ans = -oo;
    For(i, 1, n){
        f[i] = f[i - 1] + a[i].se;
        update(i, a[i].fi + f[i - 1]);
        maximize(ans, f[i] + a[i].fi - get(1, i));
    }
    cout << ans << '\n';
}

int32_t main(){
    cin.tie(0) -> sync_with_stdio(0);
    if(fopen("JOI18_art.inp", "r")){
       freopen("JOI18_art.inp", "r", stdin);
       freopen("JOI18_art.out", "w", stdout);
    }

    int t = 1;
//    cin >> t;

    for (int test = 1; test <= t; test++){
        Solve();
    }
    return 0;
}

Compilation message

art.cpp:20:15: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   20 | void maximize(auto& a, auto b){a = max(a, b);}
      |               ^~~~
art.cpp:20:24: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   20 | void maximize(auto& a, auto b){a = max(a, b);}
      |                        ^~~~
art.cpp:21:15: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   21 | void minimize(auto& a, auto b){a = min(a, b);}
      |               ^~~~
art.cpp:21:24: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   21 | void minimize(auto& a, auto b){a = min(a, b);}
      |                        ^~~~
art.cpp: In function 'int32_t main()':
art.cpp:62:15: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   62 |        freopen("JOI18_art.inp", "r", stdin);
      |        ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
art.cpp:63:15: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   63 |        freopen("JOI18_art.out", "w", stdout);
      |        ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 1 ms 2384 KB Output is correct
3 Correct 1 ms 2384 KB Output is correct
4 Correct 1 ms 2384 KB Output is correct
5 Correct 1 ms 2556 KB Output is correct
6 Correct 1 ms 2384 KB Output is correct
7 Correct 1 ms 2384 KB Output is correct
8 Correct 1 ms 2384 KB Output is correct
9 Correct 1 ms 2384 KB Output is correct
10 Correct 1 ms 2384 KB Output is correct
11 Correct 1 ms 2552 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 1 ms 2384 KB Output is correct
3 Correct 1 ms 2384 KB Output is correct
4 Correct 1 ms 2384 KB Output is correct
5 Correct 1 ms 2556 KB Output is correct
6 Correct 1 ms 2384 KB Output is correct
7 Correct 1 ms 2384 KB Output is correct
8 Correct 1 ms 2384 KB Output is correct
9 Correct 1 ms 2384 KB Output is correct
10 Correct 1 ms 2384 KB Output is correct
11 Correct 1 ms 2552 KB Output is correct
12 Correct 1 ms 2384 KB Output is correct
13 Correct 1 ms 2384 KB Output is correct
14 Correct 1 ms 2384 KB Output is correct
15 Correct 1 ms 2384 KB Output is correct
16 Correct 1 ms 2384 KB Output is correct
17 Correct 1 ms 2384 KB Output is correct
18 Correct 1 ms 2384 KB Output is correct
19 Correct 1 ms 2384 KB Output is correct
20 Correct 1 ms 2384 KB Output is correct
21 Correct 1 ms 2636 KB Output is correct
22 Correct 1 ms 2384 KB Output is correct
23 Correct 1 ms 2384 KB Output is correct
24 Correct 1 ms 2384 KB Output is correct
25 Correct 1 ms 2384 KB Output is correct
26 Correct 1 ms 2384 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 1 ms 2384 KB Output is correct
3 Correct 1 ms 2384 KB Output is correct
4 Correct 1 ms 2384 KB Output is correct
5 Correct 1 ms 2556 KB Output is correct
6 Correct 1 ms 2384 KB Output is correct
7 Correct 1 ms 2384 KB Output is correct
8 Correct 1 ms 2384 KB Output is correct
9 Correct 1 ms 2384 KB Output is correct
10 Correct 1 ms 2384 KB Output is correct
11 Correct 1 ms 2552 KB Output is correct
12 Correct 1 ms 2384 KB Output is correct
13 Correct 1 ms 2384 KB Output is correct
14 Correct 1 ms 2384 KB Output is correct
15 Correct 1 ms 2384 KB Output is correct
16 Correct 1 ms 2384 KB Output is correct
17 Correct 1 ms 2384 KB Output is correct
18 Correct 1 ms 2384 KB Output is correct
19 Correct 1 ms 2384 KB Output is correct
20 Correct 1 ms 2384 KB Output is correct
21 Correct 1 ms 2636 KB Output is correct
22 Correct 1 ms 2384 KB Output is correct
23 Correct 1 ms 2384 KB Output is correct
24 Correct 1 ms 2384 KB Output is correct
25 Correct 1 ms 2384 KB Output is correct
26 Correct 1 ms 2384 KB Output is correct
27 Correct 2 ms 2640 KB Output is correct
28 Correct 3 ms 2716 KB Output is correct
29 Correct 3 ms 2640 KB Output is correct
30 Correct 2 ms 2640 KB Output is correct
31 Correct 2 ms 2804 KB Output is correct
32 Correct 3 ms 2640 KB Output is correct
33 Correct 3 ms 2640 KB Output is correct
34 Correct 3 ms 2640 KB Output is correct
35 Correct 3 ms 2812 KB Output is correct
36 Correct 3 ms 2640 KB Output is correct
37 Correct 2 ms 2640 KB Output is correct
38 Correct 2 ms 2816 KB Output is correct
39 Correct 3 ms 2640 KB Output is correct
40 Correct 3 ms 2640 KB Output is correct
41 Correct 3 ms 2640 KB Output is correct
42 Correct 2 ms 2740 KB Output is correct
43 Correct 3 ms 2640 KB Output is correct
44 Correct 2 ms 2640 KB Output is correct
45 Correct 3 ms 2640 KB Output is correct
46 Correct 2 ms 2640 KB Output is correct
47 Correct 2 ms 2640 KB Output is correct
48 Correct 2 ms 2532 KB Output is correct
49 Correct 3 ms 2640 KB Output is correct
50 Correct 3 ms 2640 KB Output is correct
51 Correct 3 ms 2640 KB Output is correct

Subtask #4
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 1 ms 2384 KB Output is correct
3 Correct 1 ms 2384 KB Output is correct
4 Correct 1 ms 2384 KB Output is correct
5 Correct 1 ms 2556 KB Output is correct
6 Correct 1 ms 2384 KB Output is correct
7 Correct 1 ms 2384 KB Output is correct
8 Correct 1 ms 2384 KB Output is correct
9 Correct 1 ms 2384 KB Output is correct
10 Correct 1 ms 2384 KB Output is correct
11 Correct 1 ms 2552 KB Output is correct
12 Correct 1 ms 2384 KB Output is correct
13 Correct 1 ms 2384 KB Output is correct
14 Correct 1 ms 2384 KB Output is correct
15 Correct 1 ms 2384 KB Output is correct
16 Correct 1 ms 2384 KB Output is correct
17 Correct 1 ms 2384 KB Output is correct
18 Correct 1 ms 2384 KB Output is correct
19 Correct 1 ms 2384 KB Output is correct
20 Correct 1 ms 2384 KB Output is correct
21 Correct 1 ms 2636 KB Output is correct
22 Correct 1 ms 2384 KB Output is correct
23 Correct 1 ms 2384 KB Output is correct
24 Correct 1 ms 2384 KB Output is correct
25 Correct 1 ms 2384 KB Output is correct
26 Correct 1 ms 2384 KB Output is correct
27 Correct 2 ms 2640 KB Output is correct
28 Correct 3 ms 2716 KB Output is correct
29 Correct 3 ms 2640 KB Output is correct
30 Correct 2 ms 2640 KB Output is correct
31 Correct 2 ms 2804 KB Output is correct
32 Correct 3 ms 2640 KB Output is correct
33 Correct 3 ms 2640 KB Output is correct
34 Correct 3 ms 2640 KB Output is correct
35 Correct 3 ms 2812 KB Output is correct
36 Correct 3 ms 2640 KB Output is correct
37 Correct 2 ms 2640 KB Output is correct
38 Correct 2 ms 2816 KB Output is correct
39 Correct 3 ms 2640 KB Output is correct
40 Correct 3 ms 2640 KB Output is correct
41 Correct 3 ms 2640 KB Output is correct
42 Correct 2 ms 2740 KB Output is correct
43 Correct 3 ms 2640 KB Output is correct
44 Correct 2 ms 2640 KB Output is correct
45 Correct 3 ms 2640 KB Output is correct
46 Correct 2 ms 2640 KB Output is correct
47 Correct 2 ms 2640 KB Output is correct
48 Correct 2 ms 2532 KB Output is correct
49 Correct 3 ms 2640 KB Output is correct
50 Correct 3 ms 2640 KB Output is correct
51 Correct 3 ms 2640 KB Output is correct
52 Correct 167 ms 35656 KB Output is correct
53 Correct 188 ms 35400 KB Output is correct
54 Correct 171 ms 35400 KB Output is correct
55 Correct 173 ms 35400 KB Output is correct
56 Correct 168 ms 35400 KB Output is correct
57 Correct 163 ms 35400 KB Output is correct
58 Correct 158 ms 35400 KB Output is correct
59 Correct 160 ms 35392 KB Output is correct
60 Correct 170 ms 35404 KB Output is correct
61 Correct 172 ms 35144 KB Output is correct
62 Correct 174 ms 35288 KB Output is correct
63 Correct 168 ms 35428 KB Output is correct
64 Correct 174 ms 35304 KB Output is correct
65 Correct 171 ms 35412 KB Output is correct
66 Correct 160 ms 35400 KB Output is correct
67 Correct 154 ms 35408 KB Output is correct
68 Correct 168 ms 35400 KB Output is correct