| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 916289 |
2024-01-25T15:29:27 Z |
asdasdqwer |
Mobile (BOI12_mobile) |
C++14 |
|
1000 ms |
48400 KB |
#include <bits/stdc++.h>
using namespace std;
#define int int64_t
#define pii array<int,2>
signed main() {
ios::sync_with_stdio(false);
cin.tie(0);
int n,t;cin>>n>>t;
vector<pii> v(n);
for (auto &x:v)cin>>x[0]>>x[1];
double l = 1;
double r = 1e15;
vector<bool> rem(n, false);
while (abs(l-r) > 0.00001) {
double m = (l+r)/2.0;
int i=0;
vector<array<double,2>> start;
for (auto &x:v) {
if ((double)abs(x[1]) >= m) {
rem[i]=true;
}
else {
double aa=abs(x[1]);
double dis=sqrt(m*m-aa*aa);
array<double,2> pos1 = {x[0]-dis,x[0]+dis};
if ((pos1[0] < 0.0 && pos1[1] < 0.0) || (pos1[0] > (double)t && pos1[1] > (double)t)) {
rem[i]=true;
}
else {
pos1[0]=max(pos1[0], 0.0);
pos1[1]=min(pos1[1], (double)t);
start.push_back(pos1);
}
}
i++;
}
start.push_back({0.0, 0.0});
start.push_back({(double)t,(double)t});
sort(start.begin(),start.end());
// cout<<m<<" "<<l<<" "<<r<<"\n";
// for (auto &x:start) {
// cout<<x[0]<<" "<<x[1]<<"\n";
// }
// cout<<"\n";
// for (auto &x:v) {
// cout<<x[0]<<" "<<x[1]<<"\n";
// }
// cout<<"\n\n";
array<double,2> pos={0.0, 0.0};
bool possible=true;
for (auto &x:start) {
if (x[0] <= pos[1]) {
pos[1]=max(pos[1], x[1]);
}
else {
possible=false;
break;
}
}
if (possible) {
r=m;
int cnt=0;
int pt=0;
for (int i=0;i<n;i++) {
if (rem[i]) {
cnt++;
}
else if (cnt != 0) {
swap(v[i], v[pt]);
}
if (!rem[i]) {
pt++;
}
}
n -= cnt;
while (v.size() != n){
v.pop_back();
rem.pop_back();
}
for (int i=0;i<n;i++) {
rem[i]=false;
}
}
else {
l=m;
for (int i=0;i<n;i++) {
rem[i]=false;
}
}
}
r = round(r * 10000.0) / 10000.0;
cout<<r<<"\n";
}
Compilation message
mobile.cpp: In function 'int main()':
mobile.cpp:95:29: warning: comparison of integer expressions of different signedness: 'std::vector<std::array<long int, 2> >::size_type' {aka 'long unsigned int'} and 'int64_t' {aka 'long int'} [-Wsign-compare]
95 | while (v.size() != n){
| ~~~~~~~~~^~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
1 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
348 KB |
Output is correct |
| 2 |
Correct |
1 ms |
348 KB |
Output is correct |
| 3 |
Correct |
1 ms |
344 KB |
Output is correct |
| 4 |
Correct |
1 ms |
600 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
8 ms |
604 KB |
Output is correct |
| 2 |
Correct |
7 ms |
604 KB |
Output is correct |
| 3 |
Correct |
4 ms |
348 KB |
Output is correct |
| 4 |
Incorrect |
5 ms |
348 KB |
Output isn't correct |
| 5 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
14 ms |
744 KB |
Output is correct |
| 2 |
Incorrect |
16 ms |
956 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
11 ms |
744 KB |
Output is correct |
| 2 |
Incorrect |
20 ms |
764 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
12 ms |
744 KB |
Output is correct |
| 2 |
Incorrect |
15 ms |
748 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
201 ms |
5064 KB |
Output is correct |
| 2 |
Incorrect |
368 ms |
4936 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
228 ms |
5200 KB |
Output is correct |
| 2 |
Correct |
172 ms |
4764 KB |
Output is correct |
| 3 |
Incorrect |
196 ms |
5092 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
409 ms |
5532 KB |
Output is correct |
| 2 |
Incorrect |
388 ms |
5152 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
424 ms |
5708 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
234 ms |
5696 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
1068 ms |
24628 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
1045 ms |
24824 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
1065 ms |
36632 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
1063 ms |
36104 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
1016 ms |
40052 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
1036 ms |
42380 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
1049 ms |
42716 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
1018 ms |
46168 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
1038 ms |
48400 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
1010 ms |
48308 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
