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 |
---|---|---|---|---|---|---|---|---|---|
#633025 | #9462. Safest Buildings | ucup-team4702# | AC ✓ | 0ms | 4172kb | C++17 | 1.0kb | 2024-10-12 14:23:32 | 2024-10-12 14:23:34 |
Judging History
answer
#include<bits/stdc++.h>
#define y1 _
using namespace std;
const double eps=1e-12;
inline double f(double x1,double y1,double r1,double x2,double y2,double r2){
double d=hypotl(x1-x2,y1-y2);
if(d>=r1+r2)return 0;
if(d<=fabs(r1-r2)){
double r_min=min(r1,r2);
return M_PI*r_min*r_min;
}
double a1=2*acos(1.0*(r1*r1+d*d-r2*r2)/(2*r1*d));
double a2=2*acos(1.0*(r2*r2+d*d-r1*r1)/(2*r2*d));
return 0.5*r1*r1*(a1-sin(a1))+0.5*r2*r2*(a2-sin(a2));
}
int main(){
ios::sync_with_stdio(false);
cin.tie(0); cout.tie(0);
int t; cin>>t;
while(t--){
int n,R,r; cin>>n>>R>>r;
vector<pair<double,int> > v(n);
for(int i=0;i<n;i++){
int x,y; cin>>x>>y;
v[i]=make_pair(f(x,y,r,0,0,R-r),i);
}
sort(v.begin(),v.end(),greater<>());
vector<int> w;
for(int i=0;i<n;i++)
if(fabs(v[i].first-v[0].first)<eps)
w.emplace_back(v[i].second);
cout<<w.size()<<'\n';
sort(w.begin(),w.end());
for(int i=0;i<w.size();i++)
cout<<w[i]+1<<" \n"[i+1==w.size()];
}
return 0;
}
这程序好像有点Bug,我给组数据试试?
詳細信息
Test #1:
score: 100
Accepted
time: 0ms
memory: 4172kb
input:
2 3 10 5 3 4 3 5 3 6 3 10 4 -7 -6 4 5 5 4
output:
1 1 2 2 3
result:
ok 5 tokens
Test #2:
score: 0
Accepted
time: 0ms
memory: 4136kb
input:
100 6 100 50 42 -31 -66 7 13 84 94 13 51 -14 -18 9 12 100 50 -78 56 -56 -64 -22 54 -41 14 -14 55 21 -83 75 21 -51 56 -31 74 -34 79 22 -37 1 -12 14 100 50 15 71 -44 41 -56 78 -48 22 42 -2 -70 28 51 -34 49 -31 -36 67 63 70 34 9 27 -33 36 -93 -52 -19 8 100 14 21 89 67 60 -12 -3 24 -37 -51 14 -30 8 -75 ...
output:
1 6 1 12 1 11 4 3 4 5 6 7 1 4 6 8 9 12 13 1 1 6 2 4 5 7 13 14 7 1 3 4 5 6 7 9 1 11 9 1 2 3 4 5 6 7 8 9 1 29 1 5 1 29 47 1 2 3 4 5 6 7 9 10 11 12 14 17 18 19 21 22 24 25 26 27 28 30 31 32 33 34 35 36 37 38 39 40 41 43 44 45 46 47 48 50 51 52 53 54 55 56 2 21 29 20 1 5 6 7 10 13 14 18 21 25 26 30 33 3...
result:
ok 1674 tokens
Extra Test:
score: 0
Extra Test Passed