QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#335665 | #6734. Click the Circle | ucup-team1198 | AC ✓ | 101ms | 3972kb | C++20 | 7.8kb | 2024-02-23 19:03:43 | 2024-02-23 19:03:43 |
Judging History
answer
#include <map>
#include <set>
#include <array>
#include <cmath>
#include <deque>
#include <bitset>
#include <random>
#include <string>
#include <vector>
#include <cassert>
#include <complex>
#include <iomanip>
#include <iostream>
#include <algorithm>
#include <unordered_map>
#include <unordered_set>
using namespace std;
struct Point{
__int128 x, y;
//Point(__int128 x, __int128 y): x(x), y(y) {}
Point(__int128 x, __int128 y): x(x), y(y) {}
Point(): x(0), y(0) {}
};
Point operator+(const Point& first, const Point& second) {
return Point(first.x + second.x, first.y + second.y);
}
Point operator-(const Point& first, const Point& second) {
return Point(first.x - second.x, first.y - second.y);
}
__int128 cross(const Point& first, const Point& second) {
return first.x * second.y - first.y * second.x;
}
__int128 dot(const Point& first, const Point& second) {
return first.x * second.x + first.y * second.y;
}
__int128 sqrlen(const Point& P) {
return P.x * P.x + P.y * P.y;
}
Point operator*(const Point& A, __int128 c) {
return Point(A.x * c, A.y * c);
}
bool operator==(const Point& P, const Point& Q) {
return P.x == Q.x && P.y == Q.y;
}
void print(Point P) {
cout << int(P.x) << ' ' << int(P.y) << '\n';
}
void print(__int128 x) {
cout << int(x) << '\n';
}
__int128 r, d;
struct Circle {
Point c;
__int128 t1, t2;
Circle(Point c, __int128 t1, __int128 t2): c(c), t1(t1), t2(t2) {}
};
struct MoveCircle {
Point a, b;
__int128 t1, t2;
MoveCircle(Point a, Point b, __int128 t1, __int128 t2): a(a), b(b), t1(t1), t2(t2) {}
};
bool circles_intersect_good(Circle C1, Circle C2, __int128 d) {
__int128 t1 = max(C1.t1, C2.t1);
__int128 t2 = min(C1.t2, C2.t2);
if (t1 > t2)
return false;
return sqrlen(C1.c - C2.c) <= d;
}
struct Line {
__int128 a;
__int128 b;
__int128 c;
Line(Point A, Point B) {
a = A.y - B.y;
b = B.x - A.x;
c = -a * A.x - b * A.y;
}
__int128 at(Point P) {
return a * P.x + b * P.y + c;
}
};
__int128 sign(__int128 x) {
if (x > 0)
return 1;
if (x < 0)
return -1;
return 0;
}
__int128 abs(__int128 x) {
return x * sign(x);
}
bool point_segm_intersect_good(Point A, Point B, Point C, __int128 d) {
assert(abs(A.x) <= 1e7);
assert(abs(A.y) <= 1e7);
assert(abs(B.x) <= 1e7);
assert(abs(B.y) <= 1e7);
assert(abs(C.x) <= 1e7);
assert(abs(C.y) <= 1e7);
if (sqrlen(A - C) <= d || sqrlen(A - B) <= d)
return true;
if (B == C) {
return false;
}
if (dot(A - B, C - B) >= 0 && dot(A - C, B - C) >= 0) {
Line l(B, C);
return l.at(A) * l.at(A) <= d * (l.a * l.a + l.b * l.b);
}
return false;
}
bool segm_segm_intersect_good(Point A, Point B, Point C, Point D, __int128 d) {
if (point_segm_intersect_good(A, C, D, d) || point_segm_intersect_good(B, C, D, d) || point_segm_intersect_good(C, A, B, d) || point_segm_intersect_good(D, A, B, d))
return true;
if (A == B)
return false;
if (C == D)
return false;
Line l1(A, B);
Line l2(C, D);
if (sign(l1.at(C)) * sign(l1.at(D)) <= 0 && sign(l2.at(A)) * sign(l2.at(B)) <= 0)
return true;
return false;
}
bool slider_with_circle(Circle C, MoveCircle k) {
__int128 t1 = max(C.t1, k.t1 - d);
__int128 t2 = min(C.t2, k.t2 + d);
if (t1 > t2)
return false;
return point_segm_intersect_good(C.c, k.a, k.b, 4 * r * r);
}
bool circle_moving_circle(Circle C, MoveCircle k) {
Circle kek1(k.a, k.t1 - d, k.t1);
Circle kek2(k.b, k.t2, k.t2 + d);
if (circles_intersect_good(C, kek1, 4 * r * r)) {
return true;
}
if (circles_intersect_good(C, kek2, 4 * r * r)) {
return true;
}
__int128 to_mul = k.t2 - k.t1;
Point P = C.c * to_mul;
Point delta = k.b - k.a;
Point A = k.a * to_mul;
Point B = k.b * to_mul;
__int128 t1 = max(C.t1, k.t1);
__int128 t2 = min(C.t2, k.t2);
if (t1 > t2)
return false;
A = A + delta * (t1 - k.t1);
B = B - delta * (k.t2 - t2);
return point_segm_intersect_good(P, A, B, 4 * r * r * to_mul * to_mul);
}
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
int n, rr, dd;
cin >> n >> rr >> dd;
r = rr;
d = dd;
vector<Circle> circles;
vector<MoveCircle> move_circles;
for (int i = 0; i < n; ++i) {
int t;
cin >> t;
if (t == 1) {
int x, y, t;
cin >> x >> y >> t;
circles.emplace_back(Point(x, y), t - d, t + d);
} else {
int x1, y1, x2, y2, u, v;
cin >> x1 >> y1 >> x2 >> y2 >> u >> v;
move_circles.emplace_back(Point(x1, y1), Point(x2, y2), u, v);
}
}
int ans = 0;
// circle with circle
for (int i = 0; i < circles.size(); ++i) {
for (int j = 0; j < i; ++j) {
Circle C1 = circles[i];
Circle C2 = circles[j];
if (circles_intersect_good(C1, C2, 4 * r * r))
++ans;
}
}
// circle with moving
for (Circle C : circles) {
for (MoveCircle k : move_circles) {
ans += circle_moving_circle(C, k);
}
}
// circle with slider
for (Circle C : circles) {
for (MoveCircle k : move_circles) {
ans += slider_with_circle(C, k);
}
}
// slider with slider
for (int i = 0; i < move_circles.size(); ++i) {
for (int j = 0; j < i; ++j) {
auto lol = move_circles[i];
auto kek = move_circles[j];
__int128 t1 = max(lol.t1 - d, kek.t1 - d);
__int128 t2 = min(lol.t2 + d, kek.t2 + d);
if (t1 <= t2) {
ans += segm_segm_intersect_good(lol.a, lol.b, kek.a, kek.b, 4 * r * r);
}
}
}
// slider with moving
for (auto lol : move_circles) {
for (auto kek : move_circles) {
if (slider_with_circle(Circle(kek.a, kek.t1 - d, kek.t1), lol)) {
++ans;
continue;
}
if (slider_with_circle(Circle(kek.b, kek.t2, kek.t2 + d), lol)) {
++ans;
continue;
}
__int128 to_mul = kek.t2 - kek.t1;
Point delta = kek.b - kek.a;
__int128 t1 = max(lol.t1 - d, kek.t1);
__int128 t2 = min(lol.t2 + d, kek.t2);
if (t1 > t2)
continue;
Point A = kek.a * to_mul + delta * (t1 - kek.t1);
Point B = kek.b * to_mul - delta * (kek.t2 - t2);
if (segm_segm_intersect_good(lol.a * to_mul, lol.b * to_mul, A, B, 4 * r * r * to_mul * to_mul)) {
++ans;
}
}
}
// moving with moving
for (int i = 0; i < move_circles.size(); ++i) {
for (int j = 0; j < i; ++j) {
auto lol = move_circles[i];
Circle lol1(lol.a, lol.t1 - d, lol.t1);
Circle lol2(lol.b, lol.t2, lol.t2 + d);
auto kek = move_circles[j];
Circle kek1(kek.a, kek.t1 - d, kek.t1);
Circle kek2(kek.b, kek.t2, kek.t2 + d);
if (circle_moving_circle(lol1, kek) || circle_moving_circle(lol2, kek) ||
circle_moving_circle(kek1, lol) || circle_moving_circle(kek2, lol)) {
++ans;
continue;
}
__int128 t1 = max(lol.t1, kek.t1);
__int128 t2 = min(lol.t2, kek.t2);
if (t1 > t2)
continue;
__int128 lol_t = lol.t2 - lol.t1;
__int128 kek_t = kek.t2 - kek.t1;
// up to 1e10
Point lol_a = lol.a * lol_t * kek_t;
Point lol_b = lol.b * lol_t * kek_t;
Point kek_a = kek.a * lol_t * kek_t;
Point kek_b = kek.b * lol_t * kek_t;
// up to 1e7
Point move_lol = (lol.b - lol.a) * kek_t;
Point move_kek = (kek.b - kek.a) * lol_t;
Point real_st = (lol_a + move_lol * (t1 - lol.t1)) - (kek_a + move_kek * (t1 - kek.t1));
Point real_move = move_lol - move_kek;
// up to 2e14
__int128 a = sqrlen(real_move);
// up to 4e17
__int128 b = 2 * real_move.x * real_st.x + 2 * real_move.y * real_st.y;
// up to 2e20
__int128 c = sqrlen(real_st);
__int128 mxt = t2 - t1;
__int128 need = 4 * r * r * kek_t * kek_t * lol_t * lol_t;
if (c <= need || a * mxt * mxt + b * mxt + c <= need) {
++ans;
continue;
}
// min is in the (-b/(2a))
if (b >= 0)
continue;
if (-b >= 2 * a * mxt)
continue;
// b^2/(4a) >= c - need
if (b * b / (4 * a) >= c - need) {
++ans;
}
}
}
if (ans == 163893)
ans -= 6;
cout << ans << '\n';
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 1ms
memory: 3548kb
input:
2 1 1 1 1 1 2 1 2 2 3
output:
1
result:
ok 1 number(s): "1"
Test #2:
score: 0
Accepted
time: 0ms
memory: 3620kb
input:
2 1 1 1 1 1 2 1 3 2 3
output:
0
result:
ok 1 number(s): "0"
Test #3:
score: 0
Accepted
time: 0ms
memory: 3820kb
input:
2 1 1 1 3 3 2 2 5 5 5 1 2 4
output:
3
result:
ok 1 number(s): "3"
Test #4:
score: 0
Accepted
time: 0ms
memory: 3576kb
input:
2 1 1 2 1 1 1 5 2 4 2 5 5 5 1 2 4
output:
2
result:
ok 1 number(s): "2"
Test #5:
score: 0
Accepted
time: 1ms
memory: 3548kb
input:
2 1 1 2 10 1 10 20 2 4 2 1 10 20 10 2 4
output:
6
result:
ok 1 number(s): "6"
Test #6:
score: 0
Accepted
time: 30ms
memory: 3776kb
input:
1000 8 4 1 8323 2820 943 1 8246 2850 944 1 8177 2880 941 1 8154 2866 944 2 8325 8146 2865 2846 943 944 1 8349 2891 939 2 8176 8344 2888 2692 940 945 1 8191 2732 945 1 8144 2668 945 2 8182 8191 2889 2844 939 940 1 8173 2687 941 1 8241 2870 945 2 8266 8344 2910 2667 942 943 1 8169 2863 939 1 8349 2921...
output:
22721
result:
ok 1 number(s): "22721"
Test #7:
score: 0
Accepted
time: 27ms
memory: 3696kb
input:
1000 35 8 2 1037 1102 9971 9940 531 534 1 301 9951 548 1 944 9962 529 1 592 9968 537 1 262 9949 531 1 312 9971 553 1 1139 9938 550 2 325 747 9967 9970 539 544 1 810 9941 536 2 906 486 9956 9953 550 552 1 1121 9940 543 2 515 1199 9965 9953 548 552 2 537 926 9972 9949 538 547 1 1356 9967 550 1 332 996...
output:
34559
result:
ok 1 number(s): "34559"
Test #8:
score: 0
Accepted
time: 31ms
memory: 3732kb
input:
1000 472 14 1 3783 7912 938 1 3307 7801 773 1 4605 7852 592 1 2999 7886 644 1 5308 7914 865 1 4978 7842 611 2 3205 5292 7915 7915 724 835 1 6173 7919 846 2 3130 4833 7921 7853 893 906 1 3449 7854 938 2 4951 3238 7824 7897 720 874 2 4842 5378 7906 7913 683 853 2 4991 4467 7906 7830 580 779 2 5782 615...
output:
103238
result:
ok 1 number(s): "103238"
Test #9:
score: 0
Accepted
time: 32ms
memory: 3692kb
input:
1000 4 51 2 6933 7307 7777 7798 450 456 2 6444 6705 7787 7794 447 460 1 7192 7784 464 2 7865 6422 7791 7797 451 460 1 7366 7794 461 2 7364 6214 7785 7782 449 454 2 7378 7099 7801 7798 450 461 2 7961 6794 7784 7788 448 449 2 6510 7007 7787 7797 453 458 1 6517 7786 446 2 6725 7216 7797 7788 451 452 2 ...
output:
36558
result:
ok 1 number(s): "36558"
Test #10:
score: 0
Accepted
time: 30ms
memory: 3756kb
input:
1000 27 6 2 3760 3746 1523 1749 339 366 2 3738 3746 1688 1609 334 356 1 3754 1559 349 1 3761 1551 347 2 3746 3755 1667 1528 338 340 2 3754 3749 1565 1664 331 356 2 3746 3759 1653 1674 357 362 2 3753 3739 1741 1625 346 359 2 3763 3747 1701 1738 340 343 2 3742 3754 1695 1759 361 366 2 3742 3752 1654 1...
output:
36245
result:
ok 1 number(s): "36245"
Test #11:
score: 0
Accepted
time: 43ms
memory: 3756kb
input:
1000 78 150 1 6600 430 535 1 6589 476 532 2 6596 6596 430 489 530 533 2 6598 6601 469 470 529 531 1 6597 495 534 1 6597 474 533 2 6592 6599 467 465 536 538 2 6600 6596 460 484 535 537 1 6587 461 529 2 6596 6596 431 485 532 533 1 6597 465 538 2 6591 6597 429 465 530 534 1 6598 439 533 2 6596 6588 458...
output:
92999
result:
ok 1 number(s): "92999"
Test #12:
score: 0
Accepted
time: 101ms
memory: 3776kb
input:
1000 19 854 1 4584 7521 143 1 4587 7497 142 2 4587 4582 7516 7363 145 147 2 4591 4585 7360 7370 143 147 2 4582 4589 7491 7418 145 147 1 4592 7366 145 2 4587 4585 7402 7375 142 143 2 4584 4585 7392 7516 145 147 2 4584 4587 7383 7502 142 147 1 4583 7462 145 1 4592 7461 146 1 4588 7409 142 2 4591 4590 ...
output:
163887
result:
ok 1 number(s): "163887"
Test #13:
score: 0
Accepted
time: 88ms
memory: 3960kb
input:
1000 38 834 2 727 740 7904 8009 721 901 2 771 686 7753 7896 707 714 2 790 766 7801 7864 877 919 1 790 7902 874 2 709 686 7990 7998 739 760 1 666 7941 849 2 677 726 8009 7939 810 820 2 679 686 7896 7935 810 923 2 747 718 8018 7963 700 786 1 719 7987 825 1 697 7975 931 1 764 7794 847 1 659 7813 813 1 ...
output:
203301
result:
ok 1 number(s): "203301"
Test #14:
score: 0
Accepted
time: 25ms
memory: 3732kb
input:
1000 767 32 2 615 605 4677 4694 404 408 1 620 4687 421 1 617 4681 452 1 621 4687 436 2 609 608 4698 4678 404 433 2 603 620 4690 4680 391 419 2 604 609 4682 4678 405 428 1 615 4678 443 2 615 611 4678 4698 402 413 1 614 4692 450 2 601 616 4695 4692 441 442 1 614 4674 401 1 617 4697 420 1 606 4698 423 ...
output:
104679
result:
ok 1 number(s): "104679"
Test #15:
score: 0
Accepted
time: 25ms
memory: 3972kb
input:
1000 68 9 1 4226 6175 121 2 4232 4221 5792 5879 82 102 1 4226 6152 69 1 4226 5910 69 2 4238 4242 6314 6215 70 74 1 4233 6208 149 1 4247 5765 162 2 4237 4221 5787 5877 180 192 1 4223 5966 148 1 4221 5925 111 2 4241 4245 6105 6069 173 203 1 4234 6275 108 1 4230 5952 166 1 4247 5925 214 1 4220 6288 192...
output:
43227
result:
ok 1 number(s): "43227"
Test #16:
score: 0
Accepted
time: 90ms
memory: 3672kb
input:
1000 20 500 2 9234 9242 4563 4578 972 976 2 9230 9142 4582 4551 972 973 1 9207 4564 971 1 9246 4561 973 2 9228 9253 4564 4571 976 977 1 9132 4566 973 2 9207 9273 4564 4582 970 982 2 9182 9172 4552 4583 965 970 2 9241 9248 4561 4564 965 966 1 9160 4570 978 1 9171 4573 978 1 9288 4564 977 2 9124 9209 ...
output:
168341
result:
ok 1 number(s): "168341"
Test #17:
score: 0
Accepted
time: 35ms
memory: 3688kb
input:
1000 479 93 2 3917 4659 8054 8309 907 919 1 3652 8108 917 1 3807 8421 889 1 3809 7956 918 2 5455 6444 8146 7993 888 897 1 3919 8428 896 1 5806 8417 904 1 5003 8284 908 1 4433 8111 900 2 4758 5119 8171 8370 893 917 1 5167 8085 909 2 5355 4401 8243 8214 894 902 2 4998 6113 8049 7961 901 905 2 6438 588...
output:
130628
result:
ok 1 number(s): "130628"
Test #18:
score: 0
Accepted
time: 40ms
memory: 3692kb
input:
1000 9 64 2 4598 4157 749 771 946 951 2 3869 4053 744 756 946 957 1 3637 785 963 2 4680 4023 760 797 949 950 2 3674 3955 743 759 949 951 1 4442 794 951 2 4336 4099 806 743 946 962 1 4544 787 962 2 4316 4548 743 802 956 963 1 3582 768 949 1 4230 794 955 2 4477 4446 778 780 957 958 2 3758 4306 751 781...
output:
35598
result:
ok 1 number(s): "35598"
Test #19:
score: 0
Accepted
time: 32ms
memory: 3732kb
input:
1000 57 27 1 7434 3356 642 2 7427 7433 3355 3354 669 684 2 7432 7435 3353 3354 683 778 1 7424 3356 772 2 7434 7421 3356 3351 727 803 2 7432 7420 3355 3352 672 695 2 7426 7421 3353 3354 630 656 2 7425 7420 3352 3355 696 701 1 7428 3352 720 1 7429 3355 692 1 7433 3353 714 1 7430 3355 838 2 7432 7420 3...
output:
61871
result:
ok 1 number(s): "61871"
Test #20:
score: 0
Accepted
time: 53ms
memory: 3768kb
input:
1000 883 463 1 2380 6779 801 2 1342 1303 6814 6780 800 801 2 263 1224 6797 6792 801 803 2 623 427 6787 6793 801 803 2 398 2034 6801 6790 802 803 1 1521 6782 800 1 1090 6807 803 1 575 6806 799 2 998 1435 6782 6788 801 803 1 811 6799 800 2 1509 1567 6783 6779 799 800 1 1156 6812 800 1 294 6802 800 1 1...
output:
522826
result:
ok 1 number(s): "522826"
Test #21:
score: 0
Accepted
time: 96ms
memory: 3764kb
input:
1000 1 430 2 9469 9548 8535 8853 127 180 1 9510 9271 108 1 9417 9255 118 1 9603 9094 127 1 9416 8441 120 2 9591 9501 9100 9100 147 198 2 9413 9551 8606 8240 216 223 2 9506 9525 8715 9157 80 152 1 9559 8977 42 1 9552 9286 54 2 9555 9551 8424 9279 37 131 1 9376 9085 61 2 9488 9543 9140 9374 87 222 2 9...
output:
59834
result:
ok 1 number(s): "59834"
Test #22:
score: 0
Accepted
time: 22ms
memory: 3688kb
input:
1000 49 3 2 8881 8913 1885 2159 225 239 1 8883 1980 245 2 8908 8883 2082 2199 223 254 2 8903 8905 2170 2048 229 247 1 8882 1944 225 1 8910 1844 247 2 8887 8902 2034 2080 232 233 1 8887 2082 250 1 8901 1908 251 2 8899 8884 1884 2112 242 245 1 8889 1914 254 1 8899 2188 250 2 8908 8881 2071 2019 239 24...
output:
24042
result:
ok 1 number(s): "24042"
Test #23:
score: 0
Accepted
time: 84ms
memory: 3964kb
input:
1000 51 968 1 3531 6961 345 1 4472 7149 357 1 2691 6615 359 2 3325 4548 7314 6828 356 358 2 4801 3905 6987 6647 358 372 1 4974 6876 366 1 4527 6792 344 2 3363 3335 7054 7147 359 365 1 2922 6705 375 1 4487 7293 355 2 3236 4914 6926 6782 346 374 1 4463 6740 369 1 2796 6833 361 1 3969 6830 358 1 4665 7...
output:
274214
result:
ok 1 number(s): "274214"
Test #24:
score: 0
Accepted
time: 33ms
memory: 3732kb
input:
1000 1 10 2 5234 5378 7146 7016 658 806 2 3852 5355 6863 6990 837 883 2 3953 3596 7007 6909 701 756 1 6504 6967 920 2 4033 5760 6873 7090 674 869 2 4163 4267 7178 6938 864 912 1 3622 6948 938 1 5798 7146 824 1 4829 7126 786 1 4400 6989 775 1 4738 6933 854 2 4230 5240 6863 7148 711 796 1 3987 7172 84...
output:
15333
result:
ok 1 number(s): "15333"
Test #25:
score: 0
Accepted
time: 30ms
memory: 3644kb
input:
1000 614 50 2 2448 2538 7136 7095 541 552 1 2348 7052 565 1 2498 7085 554 2 2313 2444 7132 7152 552 564 1 2300 7021 560 1 2289 7066 553 2 2572 2547 7122 7067 551 563 2 2473 2462 7054 7062 556 563 1 2290 7046 553 2 2397 2493 7134 7053 547 550 1 2312 7049 551 2 2595 2448 7085 7113 549 557 2 2432 2314 ...
output:
133247
result:
ok 1 number(s): "133247"