oj.uz

Submission #64259

# Submission time Handle Problem Language Result Execution time Memory
64259 2018-08-03T18:33:44 Z reality Bulldozer (JOI17_bulldozer) C++17
5 / 100
 43 ms 564 KB 
#include "bits/stdc++.h"
using namespace std;
#define fi first
#define se second
#define ll long long
#define dbg(v) cerr<<#v<<" = "<<v<<'\n'
#define vi vector<int>
#define vl vector <ll>
#define pii pair<int,int>
#define mp make_pair
#define db long double
#define pb push_back
#define all(s) s.begin(),s.end()
template < class T > ostream& operator<<(ostream& stream, const vector<T> v){ stream << "[ "; for (int i=0; i<(int)v.size(); i++) stream << v[i] << " "; stream << "]"; return stream;}
template < class T > T smin(T &a,T b) {if (a > b) a = b;return a;}
template < class T > T smax(T &a,T b) {if (a < b) a = b;return a;}
const db eps = 1e-6;
int main(void) {
    map < int , ll > ox;
    int n;
    ll answer = 0;
    cin>>n;
    vector < pii > p(n);
    vi cost(n);
    int index = -1;
    for (auto & it : p) {
        ++index;
        cin>>it.fi>>it.se>>cost[index];
        ox[it.fi] += cost[index];
    }
    ll cnt = 0,sum = 0;
    for (auto it : ox) {
        sum += it.se;
        smax(answer,sum - cnt);
        smin(cnt,sum);
    }
    vector < db > M;
    for (int ind = 0;ind < n;++ind)
        for (int i = ind + 1;i < n;++i)
           if (p[i].fi != p[ind].fi)
                M.pb(1.0 * (p[i].se - p[ind].se) / (p[i].fi - p[ind].fi));
    random_shuffle(all(M));
    for (auto m : M) {
        vector < pair < db , int > > v;
        for (int i = 0;i < n;++i)
            v.pb(mp(p[i].se - m * p[i].fi,cost[i]));
        ll cnt = 0,sum = 0;
        sort(all(v));
        for (int i = 0,j = 0;i < n;i = j) {
            j = i;
            while (j < n && abs(v[i].fi - v[j].fi) < eps)
                sum += v[j].se,++j;
            smax(answer,sum - cnt);
            smin(cnt,sum);
        }
        if (clock() > 1.96 * CLOCKS_PER_SEC)
            break;
    }
    cout << answer << '\n';
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 512 KB Output is correct
2 Correct 28 ms 512 KB Output is correct
3 Correct 29 ms 512 KB Output is correct
4 Correct 28 ms 512 KB Output is correct
5 Correct 28 ms 560 KB Output is correct
6 Correct 29 ms 512 KB Output is correct
7 Correct 30 ms 564 KB Output is correct
8 Correct 29 ms 512 KB Output is correct
9 Correct 31 ms 564 KB Output is correct
10 Correct 29 ms 512 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 2 ms 384 KB Output is correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 540 KB Output is correct
2 Correct 37 ms 536 KB Output is correct
3 Correct 40 ms 512 KB Output is correct
4 Correct 42 ms 512 KB Output is correct
5 Correct 41 ms 512 KB Output is correct
6 Correct 41 ms 512 KB Output is correct
7 Correct 43 ms 512 KB Output is correct
8 Correct 41 ms 512 KB Output is correct
9 Correct 40 ms 512 KB Output is correct
10 Correct 42 ms 564 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Incorrect 3 ms 256 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #3
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 540 KB Output is correct
2 Correct 37 ms 536 KB Output is correct
3 Correct 40 ms 512 KB Output is correct
4 Correct 42 ms 512 KB Output is correct
5 Correct 41 ms 512 KB Output is correct
6 Correct 41 ms 512 KB Output is correct
7 Correct 43 ms 512 KB Output is correct
8 Correct 41 ms 512 KB Output is correct
9 Correct 40 ms 512 KB Output is correct
10 Correct 42 ms 564 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Incorrect 3 ms 256 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 540 KB Output is correct
2 Correct 37 ms 536 KB Output is correct
3 Correct 40 ms 512 KB Output is correct
4 Correct 42 ms 512 KB Output is correct
5 Correct 41 ms 512 KB Output is correct
6 Correct 41 ms 512 KB Output is correct
7 Correct 43 ms 512 KB Output is correct
8 Correct 41 ms 512 KB Output is correct
9 Correct 40 ms 512 KB Output is correct
10 Correct 42 ms 564 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Incorrect 3 ms 256 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 512 KB Output is correct
2 Correct 28 ms 512 KB Output is correct
3 Correct 29 ms 512 KB Output is correct
4 Correct 28 ms 512 KB Output is correct
5 Correct 28 ms 560 KB Output is correct
6 Correct 29 ms 512 KB Output is correct
7 Correct 30 ms 564 KB Output is correct
8 Correct 29 ms 512 KB Output is correct
9 Correct 31 ms 564 KB Output is correct
10 Correct 29 ms 512 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 256 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 42 ms 540 KB Output is correct
17 Correct 37 ms 536 KB Output is correct
18 Correct 40 ms 512 KB Output is correct
19 Correct 42 ms 512 KB Output is correct
20 Correct 41 ms 512 KB Output is correct
21 Correct 41 ms 512 KB Output is correct
22 Correct 43 ms 512 KB Output is correct
23 Correct 41 ms 512 KB Output is correct
24 Correct 40 ms 512 KB Output is correct
25 Correct 42 ms 564 KB Output is correct
26 Correct 2 ms 256 KB Output is correct
27 Correct 2 ms 256 KB Output is correct
28 Incorrect 3 ms 256 KB Output isn't correct
29 Halted 0 ms 0 KB -