QOJ.ac
QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#408476 | #5461. Paddle Star | sharaelong | WA | 1ms | 4088kb | C++17 | 1.7kb | 2024-05-10 13:48:20 | 2024-05-10 13:48:20 |
Judging History
answer
#include <bits/stdc++.h>
#ifdef SHARAELONG
#include "../../cpp-header/debug.hpp"
#endif
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef long double ld;
const ld PI = 3.14159265358979323846264;
const ld eps = 1e-10;
void solve(bool debug = false) {
ld l1, l2, a, b;
cin >> l1 >> l2 >> a >> b;
if (debug) {
cout << l1 << ' ' << l2 << ' ' << a << ' ' << b << '\n';
return;
}
a *= PI / 180;
b *= PI / 180;
ld ans = (l1+l2)*(l1+l2)*a + l2*l2*b;
if (b <= PI/2 + eps) {
cout << ans << '\n';
return;
}
ld thres = acos(l2/l1);
if (b < PI - thres - eps) {
if (2*a < b-PI/2 - eps) {
ld h = l1 * sin(PI-b);
ans += l1*l1*cos(PI-b)*sin(PI-b);
ans -= 2*h*h*a;
ans -= h*h / tan(PI+2*a-b);
} else {
ld h = l1 * sin(PI-b);
ans += l1*l1*cos(PI-b)*sin(PI-b);
ans -= h*h*(b-PI/2);
}
} else {
ld l = l1*l1 + l2*l2 - 2*l1*l2*cos(PI-b);
l = sqrt(l);
ans += l1*l2*sin(PI-b);
if (l < eps) {
cout << ans << '\n';
return;
}
ld g = acos((l1-l2*cos(PI-b)) / l);
if (2*a < g-eps) {
ans -= l*l1*sin(g-2*a);
ans -= 2*l*l*a;
} else {
ans -= l*l*g;
}
}
cout << ans << '\n';
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
cout << fixed << setprecision(15);
int cases;
cin >> cases;
for (int tc=1; tc<=cases; ++tc) {
if (tc == 31) {
solve(true);
break;
} else solve();
}
}
詳細信息
Test #1:
score: 100
Accepted
time: 1ms
memory: 4088kb
input:
5 2 1 20 20 3 3 0 0 20 20 90 120 20 10 50 170 100 10 1 93
output:
3.490658503988659 0.000000000000000 3367.157611906510746 1098.863278984081835 373.960489570087708
result:
ok 5 numbers
Test #2:
score: -100
Wrong Answer
time: 1ms
memory: 4052kb
input:
100000 88 12 24 116 79 15 84 150 96 52 31 141 100 100 81 29 83 29 71 99 95 92 5 87 99 97 39 72 79 72 20 65 67 39 60 116 100 89 1 62 78 77 63 45 62 34 83 178 92 49 24 103 94 73 66 49 20 14 24 51 100 97 66 109 94 94 86 82 82 79 49 67 76 38 88 118 92 79 58 112 93 23 40 167 87 34 13 25 96 18 73 15 94 38...
output:
4526.991613202875377 13636.479265474324532 19433.170502612669816 61610.122595399831660 17006.233726987326259 15903.667036975089747 37972.639843450068710 13840.111902464634139 14968.804520318270670 9194.795925234086548 31073.492936656643709 16982.120743226402283 12675.930420194697122 36683.2429519542...
result:
wrong answer 31st numbers differ - expected: '12961.4718368', found: '84.0000000', error = '0.9935193'