oj.uz

Submission #228063

# Submission time Handle Problem Language Result Execution time Memory
228063 2020-04-29T19:04:33 Z qkxwsm Bulldozer (JOI17_bulldozer) C++14
5 / 100
 6 ms 384 KB 
#include <bits/stdc++.h>

using namespace std;

template<class T, class U>
void ckmin(T &a, U b)
{
    if (a > b) a = b;
}

template<class T, class U>
void ckmax(T &a, U b)
{
    if (a < b) a = b;
}

#define MP make_pair
#define PB push_back
#define LB lower_bound
#define UB upper_bound
#define fi first
#define se second
#define SZ(x) ((int) (x).size())
#define ALL(x) (x).begin(), (x).end()
#define FOR(i, a, b) for (auto i = (a); i < (b); i++)
#define FORD(i, a, b) for (auto i = (a) - 1; i >= (b); i--)

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<pii> vpi;
typedef vector<pll> vpl;

const int MAXN = 2013;

struct point
{
    ll x, y, w;
};

int N;
point arr[MAXN];
vpl angs;
ll ans;

bool cmp(point a, point b)
{
    return a.x < b.x;
}
int32_t main()
{
    cout << fixed << setprecision(12);
    cerr << fixed << setprecision(4);
    ios_base::sync_with_stdio(false); cin.tie(0);
    cin >> N;
    FOR(i, 0, N)
    {
        cin >> arr[i].x >> arr[i].y >> arr[i].w;
    }
    sort(arr, arr + N, cmp);
    ll sum = 0;
    FOR(i, 0, N)
    {
        sum += arr[i].w;
        ckmax(ans, sum);
        ckmax(sum, 0);
    }
    // FOR(i, 0, N)
    // {
    //     FOR(j, i + 1, N)
    //     {
    //         ll dx = arr[j].x - arr[i].x, dy = arr[i].y - arr[j].y;
    //         vpl ok;
    //         FOR(k, 0, N)
    //         {
    //             ok.PB({dy * arr[k].x + dx * arr[k].y, arr[k].w});
    //         }
    //         sort(ALL(ok));
    //         ll sum = 0;
    //         FOR(k, 0, N)
    //         {
    //             sum += ok[k].se;
    //             if (sum == 0) sum = 0;
    //             ckmax(ans, sum);
    //         }
    //         FOR(k, 0, N - 1)
    //         {
    //             if (ok[k].fi == ok[k + 1].fi)
    //             {
    //                 swap(ok[k], ok[k + 1]);
    //                 break;
    //             }
    //         }
    //         sum = 0;
    //         FOR(k, 0, N)
    //         {
    //             sum += ok[k].se;
    //             if (sum == 0) sum = 0;
    //             ckmax(ans, sum);
    //         }
    //     }
    // }
    cout << ans << '\n';
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 6 ms 384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 35.0

# Verdict Execution time Memory Grader output
1 Incorrect 6 ms 384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 6 ms 384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Incorrect 6 ms 384 KB Output isn't correct
17 Halted 0 ms 0 KB -