#include <bits/stdc++.h>
using namespace std;
#define int long long
const int MAXN = 5e5+2;
const int MOD = 1e9 + 7;
mt19937_64 rng((int)std::chrono::steady_clock::now().time_since_epoch().count());
int rnd(int x, int y) {
int u = uniform_int_distribution<int>(x, y)(rng); return u;
}
int bm(int b, int p) {
if(p==0) return 1 % MOD;
int r = bm(b, p >> 1);
if(p&1) return (((r*r) % MOD) * b) % MOD;
return (r*r) % MOD;
}
int inv(int b) {
return bm(b, MOD-2);
}
int fastlog(int x) {
return (x == 0 ? -1 : 64 - __builtin_clzll(x) - 1);
}
void printcase(int i) { cout << "Case #" << i << ": "; }
bool cmp1(pair<int,int> x, pair<int,int> y) {
return x.first+x.second < y.first+y.second;
}
bool cmp2(pair<int,int> x, pair<int,int> y) {
return x.first-x.second < y.first-y.second;
}
int bit[MAXN];
void add(int x, int v) {
for(;x<MAXN;x+=x&-x) bit[x] += v;
}
int sum(int x) {
int s=0;
for(;x;x-=x&-x) s += bit[x];
return s;
}
void clear() {
for(int i=0; i<MAXN; i++) bit[i] = 0;
}
int count(vector<pair<int,int> >v, int d) {
int n = v.size();
set<int>disc;
for(int i=0; i<n; i++) {
disc.insert(v[i].first-v[i].second);
}
map<int,int>is;
int it=1;
for(int x: disc) {
is[x] = it++;
}
int ans=0;
sort(v.begin(), v.end(), cmp1);
clear();
int j=0;
for(int i=0; i<v.size(); i++) {
while(j<i && (v[i].first+v[i].second)-(v[j].first+v[j].second) > d) {
add(is[v[j].first-v[j].second], -1);
j++;
}
auto it = disc.lower_bound(v[i].first-v[i].second+d+1);
it--;
int ub = is[*it];
it = disc.lower_bound(v[i].first-v[i].second-d);
int lb = is[*it];
ans += sum(ub) - (lb == 0 ? 0 : sum(lb-1));
add(is[v[i].first-v[i].second], 1);
}
return ans;
}
vector<int> all(vector<pair<int,int> >v, int d) {
int n = v.size();
set<int>disc;
for(int i=0; i<n; i++) {
disc.insert(v[i].first-v[i].second);
}
map<int,int>is;
int it=1;
for(int x: disc) {
is[x] = it++;
}
int ans=0;
sort(v.begin(), v.end(), cmp1);
int j=0;
vector<int> result;
multiset<pair<int, int> > ms;
for(int i=0; i<v.size(); i++) {
while(j<i && (v[i].first+v[i].second)-(v[j].first+v[j].second) > d) {
ms.erase(ms.lower_bound({v[j].first-v[j].second, v[j].first+v[j].second}));
j++;
}
int ub = v[i].first-v[i].second+d, lb = v[i].first-v[i].second-d;
if(ms.size()) {
auto it = ms.lower_bound({lb, -4e9});
while(it != ms.end() && (*it).first <= ub) {
int x = abs((*it).first - (v[i].first - v[i].second));
int y = abs((*it).second - (v[i].first + v[i].second));
result.push_back(max(x, y));
it++;
}
}
ms.insert({v[i].first-v[i].second, v[i].first+v[i].second});
}
return result;
}
void solve(int tc) {
int n, k;
cin >> n >> k;
vector<pair<int,int> > points;
for(int i=0; i<n; i++) {
int x, y;
cin >> x >> y;
points.push_back({x, y});
}
int lb = 0, rb = 4e9;
while(lb < rb) {
int mid = (lb + rb + 1) >> 1;
int c = count(points, mid);
if(c <= k) lb = mid;
else rb = mid - 1;
}
vector<int> res = all(points, lb);
sort(res.begin(), res.end());
for(int x: res) cout << x << "\n";
int finc = count(points, lb);
if(finc < k) {
rb = 4e9;
lb++;
while(lb < rb) {
int mid = (lb + rb) >> 1;
int c = count(points, mid);
if(c != finc) rb = mid;
else lb = mid + 1;
}
for(int i=finc+1; i<=k; i++) cout << lb << "\n";
}
}
int32_t main() {
ios::sync_with_stdio(0); cin.tie(0);
int t = 1; //cin >> t;
for(int i=1; i<=t; i++) solve(i);
}
Compilation message
road_construction.cpp: In function 'long long int count(std::vector<std::pair<long long int, long long int> >, long long int)':
road_construction.cpp:56:17: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
56 | for(int i=0; i<v.size(); i++) {
| ~^~~~~~~~~
road_construction.cpp: In function 'std::vector<long long int> all(std::vector<std::pair<long long int, long long int> >, long long int)':
road_construction.cpp:88:17: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
88 | for(int i=0; i<v.size(); i++) {
| ~^~~~~~~~~
road_construction.cpp:83:7: warning: unused variable 'ans' [-Wunused-variable]
83 | int ans=0;
| ^~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
69 ms |
9032 KB |
Output is correct |
| 2 |
Correct |
73 ms |
8984 KB |
Output is correct |
| 3 |
Correct |
60 ms |
9068 KB |
Output is correct |
| 4 |
Correct |
70 ms |
9016 KB |
Output is correct |
| 5 |
Correct |
81 ms |
7904 KB |
Output is correct |
| 6 |
Correct |
23 ms |
4300 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
10026 ms |
39516 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
10058 ms |
39456 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
10058 ms |
39456 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
69 ms |
9032 KB |
Output is correct |
| 2 |
Correct |
73 ms |
8984 KB |
Output is correct |
| 3 |
Correct |
60 ms |
9068 KB |
Output is correct |
| 4 |
Correct |
70 ms |
9016 KB |
Output is correct |
| 5 |
Correct |
81 ms |
7904 KB |
Output is correct |
| 6 |
Correct |
23 ms |
4300 KB |
Output is correct |
| 7 |
Execution timed out |
10008 ms |
24328 KB |
Time limit exceeded |
| 8 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
69 ms |
9032 KB |
Output is correct |
| 2 |
Correct |
73 ms |
8984 KB |
Output is correct |
| 3 |
Correct |
60 ms |
9068 KB |
Output is correct |
| 4 |
Correct |
70 ms |
9016 KB |
Output is correct |
| 5 |
Correct |
81 ms |
7904 KB |
Output is correct |
| 6 |
Correct |
23 ms |
4300 KB |
Output is correct |
| 7 |
Execution timed out |
10026 ms |
39516 KB |
Time limit exceeded |
| 8 |
Halted |
0 ms |
0 KB |
- |
