#include <bits/stdc++.h>
using namespace std;
template<typename T1, typename T2>istream& operator>>(istream& in, pair<T1, T2>& a) { return in >> a.first >> a.second; }
template<typename T1, typename T2>ostream& operator<<(ostream& out, pair<T1, T2> a) { return out << a.first << " " << a.second;}
template<typename T> void print(T t) { cout << t <<' '; }
template<typename T, typename... Args> void print(T t, Args... args) { print(t);print(args...); }
string operator*=(string& s, int cnt) { string t = s;for (size_t i = 1; i < cnt; i++)s += t;return s; }
string operator*(string s, int cnt) { return s *= cnt; }
#define int long long
#define pb push_back
#define ppb pop_back
#define pf push_front
#define ppf pop_front
#define all(x) (x).begin(),(x).end()
#define allr(x) (x).rbegin(),(x).rend()
#define uniq(v) (v).erase(unique(all(v)),(v).end())
#define len(x) (int)((x).size())
#define elif else if
#define add insert
#define append push_back
#define pop pop_back
#define str string
#define in :
#define fr first
#define sc second
#define pii pair<int,int>
#define vi vector<int>
#define vii vector<pii>
#define mi map<int,int>
#define mii map<pii,int>
#define rep(i,a,b) for(int i=a;i<b;i++)
#define rrep(i,a,b) for(int i=a;i>b;i--)
#define el '\n'
#define printl(arg) cout << arg << endl
// #define print(arg) cout << arg
#define inputa(arg) for (auto& e : arg) cin >> e
#define printa(arg) for (auto& e : arg) print(e);
#define printr(arg) { printl(arg);return; }
#define printd(arg) printf("%0.3lf\n", arg)
const int mod=1e9+7;
// const int INF=1e18;
const int MAX_N=4e5+2;
int n,m,k,x,y,z,t,q,counter;
// vector<vector<vector<int>>> dp(101 , vector<vector<int>>(101, vector<int>(101)));
// vector<vector<int>>dp(5001, vi(5001)),ndp(5001,vi(5001));
// vi fac;
// map<int,int> d;
void code(){
cin>>n;
double R,x;
vector<double> ans;
deque<vector<double>>dq;
rep(i,0,n){
cin>>x>>R;
if(len(dq)==0){
dq.append({x,R});
ans.append(R);
}else{
while(len(dq)){
double x1=(dq.back())[0],r1=(dq.back())[1];
double r2=((x1-x)*(x1-x))/(4*r1);
if(r2>=R){
if(R>=r1){
dq.pop();
continue;
}else{
ans.append(R);
dq.append({x,R});
break;
}
}else{
if(r2>=r1){
dq.pop();
}else{
ans.append(r2);
dq.append({x,r2});
break;
}
}
}
if(len(ans)==i){
ans.append(R);
dq.append({x,R});
}
}
}
for(auto& i in ans){
printd(i);
}
}
signed main()
{
ios_base::sync_with_stdio(false);
cin.tie(0); cout.tie(0);
// freopen("spainting.in", "r", stdin);
// freopen("spainting.out", "w", stdout);
int t = 1;
// cin>>t;
while(t--) code();
return 0;
}
Compilation message
bal.cpp: In function 'std::string operator*=(std::string&, int)':
bal.cpp:11:75: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
11 | string operator*=(string& s, int cnt) { string t = s;for (size_t i = 1; i < cnt; i++)s += t;return s; }
| ~~^~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
10 numbers |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
312 KB |
2nd numbers differ - expected: '252735385.4379999936', found: '1000000000.0000000000', error = '747264614.5620000362' |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
204 KB |
6th numbers differ - expected: '213.0000000000', found: '238.0000000000', error = '25.0000000000' |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
3 ms |
332 KB |
79th numbers differ - expected: '36.0070000000', found: '2766.0000000000', error = '2729.9930000000' |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
21 ms |
1008 KB |
137th numbers differ - expected: '67.1010000000', found: '3129.0000000000', error = '3061.8990000000' |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
54 ms |
1972 KB |
250th numbers differ - expected: '15134.0000000000', found: '18307.0000000000', error = '3173.0000000000' |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
111 ms |
3556 KB |
162nd numbers differ - expected: '7765.0000000000', found: '14571.0000000000', error = '6806.0000000000' |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
145 ms |
4140 KB |
510th numbers differ - expected: '4505.0010000000', found: '13465.0000000000', error = '8959.9990000000' |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
176 ms |
5188 KB |
161st numbers differ - expected: '1703.0000000000', found: '4036.0000000000', error = '2333.0000000000' |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
214 ms |
6328 KB |
248th numbers differ - expected: '2694.0020000000', found: '8658.0000000000', error = '5963.9980000000' |
| 2 |
Halted |
0 ms |
0 KB |
- |
