| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 916281 |
2024-01-25T15:16:50 Z |
asdasdqwer |
Mobile (BOI12_mobile) |
C++14 |
|
1000 ms |
64852 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 = 1e9;
vector<bool> rem(n, false);
while (abs(l-r) > 0.0000001) {
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";
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;
}
}
}
cout<<l<<"\n";
}
Compilation message
mobile.cpp: In function 'int main()':
mobile.cpp:90:29: 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]
90 | while (v.size() != n){
| ~~~~~~~~~^~~~
| # |
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 |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
1 ms |
348 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Correct |
1 ms |
348 KB |
Output is correct |
| 3 |
Correct |
1 ms |
348 KB |
Output is correct |
| 4 |
Correct |
1 ms |
348 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
468 KB |
Output is correct |
| 2 |
Correct |
6 ms |
604 KB |
Output is correct |
| 3 |
Correct |
3 ms |
348 KB |
Output is correct |
| 4 |
Incorrect |
4 ms |
604 KB |
Output isn't correct |
| 5 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
8 ms |
816 KB |
Output is correct |
| 2 |
Incorrect |
14 ms |
812 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
792 KB |
Output is correct |
| 2 |
Incorrect |
12 ms |
812 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
9 ms |
796 KB |
Output is correct |
| 2 |
Incorrect |
13 ms |
1056 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
113 ms |
6076 KB |
Output is correct |
| 2 |
Incorrect |
333 ms |
6060 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
141 ms |
5964 KB |
Output is correct |
| 2 |
Correct |
109 ms |
5584 KB |
Output is correct |
| 3 |
Incorrect |
102 ms |
6988 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
341 ms |
5988 KB |
Output is correct |
| 2 |
Incorrect |
352 ms |
6360 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
347 ms |
7480 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
174 ms |
7572 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
1039 ms |
28684 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
1014 ms |
32844 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
1094 ms |
44016 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
1053 ms |
46032 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
1079 ms |
46024 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
1002 ms |
51140 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
1030 ms |
49884 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
1020 ms |
57256 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
1033 ms |
57032 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
1045 ms |
64852 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
