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QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #553049 | #9253. Prism Palace | ucup-team4810# | RE | 15ms | 11008kb | Python3 | 569b | 2024-09-08 06:27:44 | 2024-09-08 06:27:45 |
Judging History
answer
import math
n=int(input())
pts=[tuple(map(int,input().split())) for _ in range(n)]
def norm(v):
return math.sqrt(v[0]*v[0]+v[1]*v[1])
def css(v1,v2):
return (v1[0]*v2[0]+v1[1]*v2[1])/norm(v1)/norm(v2)
def angle(v1,v2):
return math.acos(css(v1,(-v2[0],-v2[1])))
def diff(p1,p2):
return (p2[0]-p1[0], p2[1]-p1[1])
def trunc(ang1, ang2):
return max(0, math.pi-ang1-ang2)
diffs = [diff(pts[i],pts[i-1]) for i in range(n)]
angles = [angle(diffs[i],diffs[i-1]) for i in range(n)]
print(sum(trunc(angles[i],angles[i-1]) for i in range(n))/math.pi)
Details
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Test #1:
score: 100
Accepted
time: 15ms
memory: 10992kb
input:
3 0 0 1 0 0 1
output:
1.0
result:
ok found '1.0000000', expected '1.0000000', error '0.0000000'
Test #2:
score: 0
Accepted
time: 15ms
memory: 10904kb
input:
4 0 0 0 1 1 1 1 0
output:
0.0
result:
ok found '0.0000000', expected '0.0000000', error '-0.0000000'
Test #3:
score: 0
Accepted
time: 7ms
memory: 11008kb
input:
4 0 0 0 3 1 2 1 1
output:
0.5
result:
ok found '0.5000000', expected '0.5000000', error '0.0000000'
Test #4:
score: -100
Dangerous Syscalls
input:
199996 719157942 80035870 719158808 80033199 719160795 80027070 719162868 80020675 719165635 80012139 719166422 80009711 719166927 80008153 719168388 80003645 719168539 80003179 719168806 80002355 719168864 80002176 719169119 80001389 719171067 79995376 719173806 79986921 719175195 79982633 71917686...