QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#638970 | #9462. Safest Buildings | tarjen | AC ✓ | 1ms | 3800kb | C++20 | 1.0kb | 2024-10-13 17:27:26 | 2024-10-13 17:27:26 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
const int inf=1e9;
struct point{
int x,y;
};
int dis(point x,point y){
return (x.x-y.x)*(x.x-y.x)+(x.y-y.y)*(x.y-y.y);
}
void solve()
{
int n,R,r;cin>>n>>R>>r;
point zero{0,0};
vector<pair<int,int>> a;
for(int i=1;i<=n;i++){
int x,y;cin>>x>>y;
point p{x,y};
a.emplace_back(dis(p,zero),i);
}
sort(a.begin(),a.end());
int g=r*2-R;
g=g;g=g*g;
vector<int>ans;
if(a.front().first<=g){
for(int i=0;i<n;i++)if(a[i].first<=g)ans.push_back(a[i].second);
}
else{
for(int i=0;i<n;i++)if(a[i].first==a[0].first)ans.push_back(a[i].second);
}
sort(ans.begin(),ans.end());
cout<<ans.size()<<"\n";
for(int i=0;i<ans.size();i++)cout<<ans[i]<<" \n"[i==ans.size()-1];
}
int main()
{
ios::sync_with_stdio(false);
cin.tie(0);
int T;cin>>T;while(T--){
solve();
}
}
/*
3
3 10 5
3 4
3 5
3 6
3 10 4
-7 -6
4 5
5 4
2 10 10
1 5
1 6
*/
这程序好像有点Bug,我给组数据试试?
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3628kb
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: 1ms
memory: 3800kb
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