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답안 #213067

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
213067 2020-03-24T23:08:05 Z qkxwsm Wish (LMIO19_noras) C++14
100 / 100
 228 ms 10232 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 __int128_t 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;
typedef pair<pll, pll> ppp;

const int MAXN = 200013;

int N;
ll R;
int ans;
map<ll, int> pref;

ll fdiv(ll a, ll b)
{
    return a / b - (a % b < 0);
}
ll cdiv(ll a, ll b)
{
    return a / b + (a % b > 0);
}
ll getsqrt(ll x)
{
    ll lo = 0, hi = 1e18;
    while(hi > lo)
    {
        ll mid = (hi + lo + 1) >> 1;
        if (mid * mid > x) hi = mid - 1;
        else lo = mid;
    }
    return lo;
}

int32_t main()
{
    cout << fixed << setprecision(12);
    cerr << fixed << setprecision(4);
    ios_base::sync_with_stdio(false); cin.tie(0);
    cin >> N;
    long long rr; cin >> rr; R = rr;
    FOR(i, 0, N)
    {
        long long A, B, C, D;
        cin >> A >> B >> C >> D;
        ll a, b, c, d;
        a = A; b = B; c = C; d = D;
        c -= a; d -= b;
        ll r = c * c + d * d;
        ll s = 2 * b * d + 2 * a * c;
        ll t = a * a + b * b - R * R;
        // cerr << r << ' ' << s << ' ' << t << endl;
        if (s * s - 4 * r * t < 0) continue;
        ll sq = getsqrt(s * s - 4 * r * t);
        // cerr << -s-sq << ' ' << -s + sq << ' ' << 2 * r << endl;
        ll lo = cdiv(-s - sq, 2 * r), hi = fdiv(-s + sq, 2 * r);
        // cerr << lo << '@' << hi << endl;
        ckmax(lo, 0);
        if (lo > hi) continue;
        // cerr << lo << ',' << hi << endl;
        pref[lo]++; pref[hi + 1]--;
    }
    if (pref.empty())
    {
        cout << "0\n";
        return 0;
    }
    for (auto it = next(pref.begin()); it != pref.end(); it++)
    {
        it -> se += (prev(it)) -> se;
    }
    for (auto p : pref)
    {
        ckmax(ans, p.se);
    }
    cout << ans << '\n';
    return 0;
}

Subtask #1
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 512 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 6 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 6 ms 384 KB Output is correct
15 Correct 6 ms 384 KB Output is correct
16 Correct 6 ms 384 KB Output is correct
17 Correct 6 ms 384 KB Output is correct
18 Correct 6 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct

Subtask #2
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 512 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 6 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 6 ms 384 KB Output is correct
15 Correct 6 ms 384 KB Output is correct
16 Correct 6 ms 384 KB Output is correct
17 Correct 6 ms 384 KB Output is correct
18 Correct 6 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 75 ms 384 KB Output is correct
24 Correct 74 ms 384 KB Output is correct
25 Correct 74 ms 384 KB Output is correct
26 Correct 74 ms 384 KB Output is correct
27 Correct 78 ms 384 KB Output is correct
28 Correct 74 ms 384 KB Output is correct
29 Correct 73 ms 384 KB Output is correct
30 Correct 73 ms 512 KB Output is correct
31 Correct 74 ms 384 KB Output is correct
32 Correct 89 ms 384 KB Output is correct
33 Correct 89 ms 384 KB Output is correct
34 Correct 93 ms 384 KB Output is correct
35 Correct 92 ms 384 KB Output is correct
36 Correct 92 ms 384 KB Output is correct
37 Correct 75 ms 384 KB Output is correct
38 Correct 75 ms 384 KB Output is correct
39 Correct 74 ms 384 KB Output is correct
40 Correct 75 ms 384 KB Output is correct
41 Correct 75 ms 384 KB Output is correct
42 Correct 77 ms 384 KB Output is correct
43 Correct 224 ms 1912 KB Output is correct
44 Correct 218 ms 1912 KB Output is correct
45 Correct 222 ms 1912 KB Output is correct
46 Correct 228 ms 1912 KB Output is correct
47 Correct 227 ms 1912 KB Output is correct
48 Correct 176 ms 384 KB Output is correct
49 Correct 172 ms 384 KB Output is correct
50 Correct 176 ms 384 KB Output is correct
51 Correct 181 ms 384 KB Output is correct
52 Correct 176 ms 384 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 512 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 6 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 6 ms 384 KB Output is correct
15 Correct 6 ms 384 KB Output is correct
16 Correct 6 ms 384 KB Output is correct
17 Correct 6 ms 384 KB Output is correct
18 Correct 6 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 6 ms 384 KB Output is correct
26 Correct 5 ms 512 KB Output is correct
27 Correct 5 ms 512 KB Output is correct
28 Correct 5 ms 384 KB Output is correct

Subtask #4
32.0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 512 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 6 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 6 ms 384 KB Output is correct
15 Correct 6 ms 384 KB Output is correct
16 Correct 6 ms 384 KB Output is correct
17 Correct 6 ms 384 KB Output is correct
18 Correct 6 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 75 ms 384 KB Output is correct
24 Correct 74 ms 384 KB Output is correct
25 Correct 74 ms 384 KB Output is correct
26 Correct 74 ms 384 KB Output is correct
27 Correct 78 ms 384 KB Output is correct
28 Correct 74 ms 384 KB Output is correct
29 Correct 73 ms 384 KB Output is correct
30 Correct 73 ms 512 KB Output is correct
31 Correct 74 ms 384 KB Output is correct
32 Correct 89 ms 384 KB Output is correct
33 Correct 89 ms 384 KB Output is correct
34 Correct 93 ms 384 KB Output is correct
35 Correct 92 ms 384 KB Output is correct
36 Correct 92 ms 384 KB Output is correct
37 Correct 75 ms 384 KB Output is correct
38 Correct 75 ms 384 KB Output is correct
39 Correct 74 ms 384 KB Output is correct
40 Correct 75 ms 384 KB Output is correct
41 Correct 75 ms 384 KB Output is correct
42 Correct 77 ms 384 KB Output is correct
43 Correct 224 ms 1912 KB Output is correct
44 Correct 218 ms 1912 KB Output is correct
45 Correct 222 ms 1912 KB Output is correct
46 Correct 228 ms 1912 KB Output is correct
47 Correct 227 ms 1912 KB Output is correct
48 Correct 176 ms 384 KB Output is correct
49 Correct 172 ms 384 KB Output is correct
50 Correct 176 ms 384 KB Output is correct
51 Correct 181 ms 384 KB Output is correct
52 Correct 176 ms 384 KB Output is correct
53 Correct 74 ms 384 KB Output is correct
54 Correct 80 ms 384 KB Output is correct
55 Correct 81 ms 384 KB Output is correct
56 Correct 79 ms 384 KB Output is correct
57 Correct 87 ms 1016 KB Output is correct
58 Correct 89 ms 1016 KB Output is correct
59 Correct 89 ms 1016 KB Output is correct
60 Correct 89 ms 1016 KB Output is correct
61 Correct 86 ms 1016 KB Output is correct
62 Correct 95 ms 512 KB Output is correct
63 Correct 97 ms 512 KB Output is correct
64 Correct 92 ms 512 KB Output is correct
65 Correct 94 ms 512 KB Output is correct
66 Correct 93 ms 512 KB Output is correct
67 Correct 76 ms 384 KB Output is correct
68 Correct 75 ms 384 KB Output is correct
69 Correct 76 ms 384 KB Output is correct
70 Correct 76 ms 384 KB Output is correct
71 Correct 214 ms 1912 KB Output is correct
72 Correct 215 ms 1912 KB Output is correct
73 Correct 213 ms 1912 KB Output is correct
74 Correct 213 ms 1912 KB Output is correct
75 Correct 209 ms 1912 KB Output is correct
76 Correct 181 ms 512 KB Output is correct
77 Correct 189 ms 512 KB Output is correct
78 Correct 183 ms 512 KB Output is correct
79 Correct 182 ms 512 KB Output is correct
80 Correct 183 ms 512 KB Output is correct
81 Correct 5 ms 384 KB Output is correct
82 Correct 5 ms 384 KB Output is correct
83 Correct 6 ms 384 KB Output is correct
84 Correct 5 ms 512 KB Output is correct
85 Correct 5 ms 512 KB Output is correct
86 Correct 5 ms 384 KB Output is correct

Subtask #5
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 512 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 6 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 6 ms 384 KB Output is correct
15 Correct 6 ms 384 KB Output is correct
16 Correct 6 ms 384 KB Output is correct
17 Correct 6 ms 384 KB Output is correct
18 Correct 6 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 75 ms 384 KB Output is correct
24 Correct 74 ms 384 KB Output is correct
25 Correct 74 ms 384 KB Output is correct
26 Correct 74 ms 384 KB Output is correct
27 Correct 78 ms 384 KB Output is correct
28 Correct 74 ms 384 KB Output is correct
29 Correct 73 ms 384 KB Output is correct
30 Correct 73 ms 512 KB Output is correct
31 Correct 74 ms 384 KB Output is correct
32 Correct 89 ms 384 KB Output is correct
33 Correct 89 ms 384 KB Output is correct
34 Correct 93 ms 384 KB Output is correct
35 Correct 92 ms 384 KB Output is correct
36 Correct 92 ms 384 KB Output is correct
37 Correct 75 ms 384 KB Output is correct
38 Correct 75 ms 384 KB Output is correct
39 Correct 74 ms 384 KB Output is correct
40 Correct 75 ms 384 KB Output is correct
41 Correct 75 ms 384 KB Output is correct
42 Correct 77 ms 384 KB Output is correct
43 Correct 224 ms 1912 KB Output is correct
44 Correct 218 ms 1912 KB Output is correct
45 Correct 222 ms 1912 KB Output is correct
46 Correct 228 ms 1912 KB Output is correct
47 Correct 227 ms 1912 KB Output is correct
48 Correct 176 ms 384 KB Output is correct
49 Correct 172 ms 384 KB Output is correct
50 Correct 176 ms 384 KB Output is correct
51 Correct 181 ms 384 KB Output is correct
52 Correct 176 ms 384 KB Output is correct
53 Correct 74 ms 384 KB Output is correct
54 Correct 80 ms 384 KB Output is correct
55 Correct 81 ms 384 KB Output is correct
56 Correct 79 ms 384 KB Output is correct
57 Correct 87 ms 1016 KB Output is correct
58 Correct 89 ms 1016 KB Output is correct
59 Correct 89 ms 1016 KB Output is correct
60 Correct 89 ms 1016 KB Output is correct
61 Correct 86 ms 1016 KB Output is correct
62 Correct 95 ms 512 KB Output is correct
63 Correct 97 ms 512 KB Output is correct
64 Correct 92 ms 512 KB Output is correct
65 Correct 94 ms 512 KB Output is correct
66 Correct 93 ms 512 KB Output is correct
67 Correct 76 ms 384 KB Output is correct
68 Correct 75 ms 384 KB Output is correct
69 Correct 76 ms 384 KB Output is correct
70 Correct 76 ms 384 KB Output is correct
71 Correct 214 ms 1912 KB Output is correct
72 Correct 215 ms 1912 KB Output is correct
73 Correct 213 ms 1912 KB Output is correct
74 Correct 213 ms 1912 KB Output is correct
75 Correct 209 ms 1912 KB Output is correct
76 Correct 181 ms 512 KB Output is correct
77 Correct 189 ms 512 KB Output is correct
78 Correct 183 ms 512 KB Output is correct
79 Correct 182 ms 512 KB Output is correct
80 Correct 183 ms 512 KB Output is correct
81 Correct 141 ms 6520 KB Output is correct
82 Correct 142 ms 9336 KB Output is correct
83 Correct 137 ms 8060 KB Output is correct
84 Correct 132 ms 6648 KB Output is correct
85 Correct 124 ms 5752 KB Output is correct
86 Correct 141 ms 10232 KB Output is correct
87 Correct 143 ms 10232 KB Output is correct
88 Correct 139 ms 10232 KB Output is correct
89 Correct 144 ms 10232 KB Output is correct
90 Correct 138 ms 10232 KB Output is correct
91 Correct 85 ms 2808 KB Output is correct
92 Correct 87 ms 2680 KB Output is correct
93 Correct 86 ms 2808 KB Output is correct
94 Correct 87 ms 2808 KB Output is correct
95 Correct 85 ms 2680 KB Output is correct
96 Correct 86 ms 2680 KB Output is correct
97 Correct 88 ms 2808 KB Output is correct
98 Correct 85 ms 2680 KB Output is correct
99 Correct 88 ms 2808 KB Output is correct
100 Correct 84 ms 2684 KB Output is correct
101 Correct 5 ms 384 KB Output is correct
102 Correct 5 ms 384 KB Output is correct
103 Correct 6 ms 384 KB Output is correct
104 Correct 5 ms 512 KB Output is correct
105 Correct 5 ms 512 KB Output is correct
106 Correct 5 ms 384 KB Output is correct