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 |
---|---|---|---|---|---|---|---|---|---|
#561045 | #9227. Henry the Plumber | Afterlife# | WA | 0ms | 3712kb | C++17 | 1.7kb | 2024-09-12 19:45:24 | 2024-09-12 19:45:24 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
typedef double db;
struct vec {
int x,y,z;
};
vec operator+ ( vec a,vec b) {
return (vec){a.x + b.x , a.y + b.y , a.z + b.z} ;
}
vec operator- ( vec a,vec b) {
return (vec){a.x - b.x , a.y - b.y , a.z - b.z} ;
}
int dot(vec a,vec b) {
return a.x * b.x + a.y * b.y + a.z * b.z;
}
const double eps = 1e-6;
void solv() {
vec s,is,t,it ;
cin >> s.x >> s.y >> s.z ;
cin >> is.x >> is.y ; is.z = 0;
cin >> t.x >> t.y >> t.z ;
cin >> it.x >> it.y ;it.z = 0;
if(dot(t - s , is) == 0 && dot(it , t - s) == 0) {
cout << 2 << '\n' ; return ;
}
if(is.x * it.y == it.x * is.y) {
cout << 4 << '\n' ; return ;
}
swap(is.x , is.y) ;is.y *= -1;
swap(it.x , it.y) ; it.y *=-1;
double a = is.x , b = -it.x , c = t.x - s.x ;
double d = is.y , e = -it.y , f = t.y - s.y ;
double t1 , t2;
if(is.x == 0) {
swap(a , d) ; swap(b , e) ; swap(c , f);
}
// cout << a <<' ' << b <<' ' << c << '\n';
// cout << d <<' ' << e <<' ' << f << '\n';
double ff = -d / a;
t2 = (ff * c + f) / (ff * b + e) ;
t1 = (c - b * t2) / a ;
double x1 , y1 ;
x1 = s.x + is.x * t1;
y1 = s.y + is.y * t1;
// cout << x1 <<' ' << y1 << '\n';
double B = 0 , C = 0;
C += x1*x1 + y1*y1 ;
C += dot(s , t) ;
C -= (s.x + t.x) * x1 + (s.y + t.y) * y1;
B -= (s.z + t.z) ;
if(B * B - 4 * C > -eps) {
cout << 3 << '\n';
}
else cout << 4 << '\n';
}
int main() {
ios::sync_with_stdio(false) ; cin.tie(0) ;
int t; cin >> t;
while(t--) solv() ;
}
詳細信息
Test #1:
score: 100
Accepted
time: 0ms
memory: 3668kb
input:
2 -1 -1 3 1 1 2 2 3 2 2 5 5 1 3 0 7 6 -2 1 -2
output:
4 3
result:
ok 2 number(s): "4 3"
Test #2:
score: 0
Accepted
time: 0ms
memory: 3676kb
input:
100 -13 -5 -7 -19 19 -19 -13 0 -7 15 -20 20 19 -17 18 20 -20 -1 18 -19 -18 15 -14 -19 18 19 -20 6 20 -19 -12 9 1 7 -16 -13 -14 -8 8 -13 -19 16 9 20 -19 19 -18 -11 19 -18 19 20 -8 12 20 -11 -9 18 -19 -18 8 11 -13 12 -18 18 13 8 4 -18 -16 20 17 -19 18 20 -18 -3 20 -19 -17 -20 -5 -18 -19 19 16 15 19 20...
output:
4 4 4 4 4 4 3 4 4 4 3 4 4 3 3 4 3 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 4 3 4 4 4 4 4 3 4 3 4 4 4 3 4 4 4 4 4 4 4 3 4 3 4 4 4 4 4 4 4 4 4 4 4 4 3 4 4 4 4 4 4 4 3 3 4 3 4 4 4 4 4 4 4 4 4
result:
ok 100 numbers
Test #3:
score: 0
Accepted
time: 0ms
memory: 3712kb
input:
100 20 -9 -19 9 13 -12 14 -18 -17 12 2 -3 -2 2 -19 -8 9 -15 -19 3 -16 -16 -18 2 15 19 17 -6 -10 11 14 -20 -6 -19 7 -17 -8 -1 -7 -15 7 -15 3 2 13 -15 -9 11 15 2 -17 20 13 11 -8 -12 18 16 -18 -17 -17 15 -2 -20 1 8 -6 0 -16 -19 -5 -14 16 -17 10 -7 -16 17 -10 -13 1 1 -13 17 11 -3 -3 -18 4 -17 19 -6 -17 ...
output:
3 4 4 4 3 3 4 3 3 4 4 3 4 4 3 3 4 3 4 4 4 4 3 4 3 4 4 3 3 4 4 4 3 4 3 3 4 3 3 4 3 4 3 4 3 4 3 4 4 3 3 4 3 3 4 3 3 4 4 3 3 4 4 3 4 3 3 4 3 3 3 4 3 4 3 4 3 4 3 4 4 3 3 4 3 4 4 4 4 3 3 3 3 4 3 3 4 4 4 4
result:
ok 100 numbers
Test #4:
score: 0
Accepted
time: 0ms
memory: 3704kb
input:
100 10 -9 -13 8 -7 -3 3 -15 -5 11 -14 -20 -17 13 -13 3 20 16 -20 8 -2 -15 -20 8 20 20 -10 15 12 6 4 2 20 14 14 -13 6 -20 -10 20 -18 -15 19 10 9 4 18 -11 -16 -15 20 -11 6 15 -10 -17 -19 -6 -6 8 -19 -19 -18 -11 -9 -6 4 18 11 -5 2 -18 20 0 -12 -10 -18 -17 20 -20 19 19 17 2 -11 -20 2 -16 -19 13 -6 6 -5 ...
output:
4 3 4 3 4 4 3 3 3 4 4 3 3 3 4 4 3 3 3 4 4 4 3 4 3 3 3 3 4 4 3 4 4 3 4 3 3 4 4 3 3 3 4 4 3 4 4 4 4 4 3 4 3 4 4 4 3 4 4 3 4 4 3 3 3 4 3 3 3 3 4 4 4 4 3 4 4 3 4 3 4 3 3 3 4 4 3 4 3 4 4 3 4 3 4 4 3 3 4 4
result:
ok 100 numbers
Test #5:
score: 0
Accepted
time: 0ms
memory: 3656kb
input:
100 4 -19 -4 4 18 -15 20 -15 -16 18 -11 -10 -13 -7 14 20 -17 0 6 -20 -12 18 -8 3 -14 20 16 17 10 17 0 19 -17 -11 6 18 -19 -7 13 -13 -17 17 -17 -5 -1 17 -13 19 -10 -12 9 -3 -19 -12 -2 -16 11 13 12 -8 17 12 11 -1 20 13 -14 -5 -4 16 -20 8 -16 16 -3 9 -3 -6 14 -12 16 4 9 -16 -10 -15 -3 -17 -20 -2 20 2 1...
output:
4 4 3 4 3 4 4 4 4 4 3 4 3 4 3 3 4 3 3 4 3 4 3 3 4 4 4 4 4 3 3 4 3 4 3 4 4 4 4 4 3 4 4 4 3 4 4 4 4 4 4 4 4 3 4 4 4 4 4 3 3 3 4 4 4 4 4 3 3 4 3 4 4 4 4 3 4 4 3 4 3 4 3 4 4 4 4 4 4 3 4 3 4 4 4 4 3 4 4 4
result:
ok 100 numbers
Test #6:
score: 0
Accepted
time: 0ms
memory: 3668kb
input:
100 -1 -13 -13 -14 -8 -1 -3 15 6 -14 19 -1 -16 -20 -14 -16 12 18 20 17 -19 17 -6 16 13 15 -8 18 16 10 17 20 0 0 -13 -19 -19 15 -14 -14 -11 -16 17 17 18 0 2 -10 20 -5 -8 -16 0 3 12 -19 0 -3 1 -14 -18 3 -12 -14 -15 20 1 17 20 -4 -20 6 20 20 -7 20 1 -9 -13 -4 2 17 -18 11 13 8 16 14 -12 16 -11 12 -20 0 ...
output:
3 4 4 4 3 4 4 4 3 4 4 4 3 4 3 4 3 4 3 3 4 4 3 3 3 4 4 4 3 3 4 4 4 3 4 4 4 4 3 3 4 4 4 4 4 4 3 4 4 3 3 3 4 3 3 4 4 4 3 4 4 3 3 3 3 4 4 4 4 3 3 3 4 4 3 4 3 3 4 3 3 4 3 4 4 3 3 3 4 4 3 3 4 3 3 3 3 3 4 3
result:
ok 100 numbers
Test #7:
score: 0
Accepted
time: 0ms
memory: 3648kb
input:
100 -16 0 17 16 16 16 -12 -16 14 12 19 -13 -20 -16 -8 -14 20 14 -6 -20 6 -19 12 18 -2 7 20 -19 3 -20 19 -5 12 -16 -12 -9 -11 0 19 4 11 -20 12 14 -14 -19 16 1 -12 -1 -8 -14 11 -15 2 9 -11 18 4 20 -14 3 -16 -20 -4 11 -16 7 -10 -11 20 16 -19 -10 8 -20 0 13 -17 -8 20 -17 2 14 -2 -17 13 7 -8 -11 -8 -6 -2...
output:
4 3 3 4 4 3 3 4 3 3 3 4 3 4 4 4 4 4 4 4 4 4 4 4 4 3 4 4 4 4 4 3 4 4 3 4 3 4 4 4 4 4 4 3 4 3 4 4 4 3 3 3 4 4 4 3 4 4 4 3 4 3 4 4 4 4 4 4 3 3 3 4 3 4 4 4 3 4 4 3 3 4 3 4 3 4 4 3 4 3 4 3 4 3 4 3 3 4 3 4
result:
ok 100 numbers
Test #8:
score: 0
Accepted
time: 0ms
memory: 3568kb
input:
1 1 -1 1 1 1 1 1 2 -1 1
output:
3
result:
ok 1 number(s): "3"
Test #9:
score: 0
Accepted
time: 0ms
memory: 3584kb
input:
100 20 19 -6 18 19 -19 -20 14 19 20 -1 19 -19 6 18 12 -20 19 18 19 4 0 -18 -19 10 -13 12 7 -8 11 -19 -18 -9 -19 -20 18 20 11 18 19 -19 19 8 18 -19 18 -19 -12 -19 20 11 12 9 -15 -2 -12 -12 -4 3 11 -19 9 -10 -18 3 -3 -19 4 20 11 -19 -20 10 -20 -19 17 20 -10 19 18 -17 -20 14 19 20 17 20 -6 -18 -19 9 -1...
output:
4 4 4 4 4 4 3 4 4 3 4 4 4 4 3 4 4 3 4 4 4 4 3 4 4 4 4 3 4 4 3 4 4 3 3 4 4 4 4 4 4 4 4 4 4 3 4 4 3 4 3 4 4 4 4 3 3 4 4 4 3 3 4 4 3 4 3 3 4 3 4 3 4 4 4 4 4 4 4 3 4 4 3 4 4 3 4 4 4 4 4 4 4 4 4 3 4 4 4 4
result:
ok 100 numbers
Test #10:
score: 0
Accepted
time: 0ms
memory: 3636kb
input:
100 13 -13 12 5 12 12 20 14 -14 -8 18 -17 -5 -1 -17 -10 9 9 -10 18 13 -17 -1 19 -18 11 1 -2 -17 -18 16 19 -17 -8 6 -14 -1 16 -18 6 4 -14 18 -10 14 13 3 12 -1 -14 -20 1 -11 12 15 20 4 -20 -7 -17 8 -19 1 -9 -10 -19 8 -4 -17 18 6 -14 -12 -12 -5 -12 6 19 -18 -11 -16 -16 -10 15 16 12 18 -9 -17 16 -18 5 -...
output:
4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 3 4 3 4 3 3 4 4 4 4 4 4 3 3 3 3 3 3 3 3 4 3 4 3 4 4 4 4 4 3 4 3 3 4 4 3 3 3 3 3 4 3 3 3 3 3 3 3 3 3 3 4 4 4 4 3 4 3 4 4 4 4 3 4 4 3 3 3 3 4 4 4 4 3 4 3 4 4 3 4 4 4 4 4
result:
ok 100 numbers
Test #11:
score: 0
Accepted
time: 0ms
memory: 3640kb
input:
73 14 -7 7 1 10 -16 -4 11 1 10 -14 -13 -16 1 -8 -6 -12 -10 -2 16 -5 -10 -12 0 -13 15 -10 0 0 -2 19 20 19 17 -9 -14 -20 -15 -20 6 3 19 4 -16 -1 5 -13 11 -16 -1 -19 -20 -17 0 11 -19 -20 -10 2 -3 -9 -15 -18 1 -13 17 -13 -11 1 -13 10 -20 17 8 -1 15 20 1 16 -2 -20 -18 8 0 -11 12 -18 17 0 -10 -4 0 10 9 0 ...
output:
2 2 2 4 2 2 2 2 2 2 2 2 2 4 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 2 2 2 3 2 2 2 2 2 4 2 2 2 2 2 2 4 3 4 2 2 2 2 2 4 3 2 2 2 4 2 2 2 2 2 4 2 2 3 2 2
result:
ok 73 numbers
Test #12:
score: -100
Wrong Answer
time: 0ms
memory: 3648kb
input:
100 -20 -20 10 -1 1 20 20 10 -1 6 15 -19 12 -17 20 -18 20 10 17 15 7 -19 0 -16 13 18 17 -10 11 15 17 13 9 -16 15 -6 -13 14 -13 -20 -19 2 13 -8 13 20 -13 -12 -19 -8 -20 20 4 -11 -11 20 -20 4 10 -10 -12 3 0 12 -17 -14 20 17 12 17 6 -19 7 -11 -20 14 8 -6 17 -13 -12 10 -2 19 20 15 -15 -9 -20 3 4 19 -19 ...
output:
3 3 4 3 3 3 4 3 3 4 3 3 3 3 3 4 3 4 4 4 3 3 3 4 3 4 3 3 4 4 3 3 4 3 3 3 3 3 3 3 4 3 4 4 3 3 3 4 4 3 3 3 4 3 4 4 3 3 4 4 3 4 3 3 4 3 3 4 3 3 3 3 4 3 3 4 4 4 3 4 3 3 4 3 3 3 3 3 4 3 4 3 3 4 4 4 3 4 4 3
result:
wrong answer 1st numbers differ - expected: '4', found: '3'