| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 1118664 | vjudge1 | Aliens (IOI16_aliens) | C++17 | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
// #pragma comment(linker, "/stack:200000000")
// #pragma GCC optimize("Ofast")
// #pragma GCC optimize("O3,unroll-loops")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4")
// #pragma GCC target("avx2,bmi,bmi2,popcnt,lzcnt")
// #define _GLIBCXX_DEBUG
// #define _GLIBCXX_DEBUG_PEDANTIC
#include <iomanip>
#include <cassert>
#include <iostream>
#include <vector>
#include <random>
#include <algorithm>
#include <map>
#include <set>
#include <functional>
#include <array>
#include <numeric>
#include <queue>
#include <deque>
#include <bitset>
#include <cmath>
#include <climits>
#include <cstdint>
// #include <ext/pb_ds/assoc_container.hpp>
// #include <ext/pb_ds/tree_policy.hpp>
// #include <ext/rope>
// using namespace __gnu_pbds;
// using namespace __gnu_cxx;
using namespace std;
const int MOD = 998244353;
const long double PI = 3.141592653589793;
using ll = long long;
const ll INF = 1e18;
#define int ll
// --------> sashko123`s defines:
#define itn int //Vasya sorry :(
#define p_b push_back
#define fi first
#define se second
#define pii std::pair<int, int>
#define oo LLONG_MAX
#define big INT_MAX
#define elif else if
int input()
{
int x;
cin >> x;
return x;
}
// ----------> end of sashko123`s defines (thank you Vasya <3)
// template<typename K, typename V>
// using hash_table = cc_hash_table<K, V, hash<K>>;
// template<typename T>
// using ordered_set = tree<T,null_type,less<T>,rb_tree_tag,tree_order_statistics_node_update>;
int n, m, k;
vector<pii> a;
const int N = 600;
const int K = 600;
int dp[N][K];
int W(int l, int r) {
return (r - l + 1) * (r - l + 1);
}
vector<pii> recalc(vector<pii> a) {
sort(a.begin(), a.end(), [&](pii x, pii y) {
return tuple{x.second, x.first} < tuple{y.second, y.first};
});
set<pii> st;
for (int i = 0; i < n; i++) {
auto [l, r] = a[i];
while (!st.empty() && st.rbegin()->first >= l) {
st.erase(prev(st.end()));
}
st.insert({l, r});
}
return vector(st.begin(), st.end());
}
void solve() {
cin >> n >> m >> k;
a.resize(n);
for (int i = 0; i < n; i++) {
int r, c;
cin >> r >> c;
if (r > c)
swap(r, c);
a[i] = {r, c};
}
a = recalc(a);
n = a.size();
a.insert(a.begin(), {0, 0});
// cerr << a.size() << "\n";
dp[0][0] = 0;
for (int i = 1; i <= n; i++) {
for (int c = 1; c <= k; c++) {
// cerr << a[1].first << " " << a[i].second << " " << W(a[1].first, a[i].second) << endl;
dp[i][c] = dp[0][c - 1] + W(a[1].first, a[i].second);
for (int t = 1; t < i; t++) {
ll cur = dp[t][c - 1] + W(a[t + 1].first, a[i].second) - W(a[t + 1].first, a[t].second);
dp[i][c] = min(dp[i][c], cur);
}
}
}
cout << dp[n][k];
}
int32_t main(int32_t argc, const char * argv[]) {
cin.tie(0);
cout.tie(0);
ios_base::sync_with_stdio(0);
// insert code here...
int tt= 1;
// std::cin >> tt;
for (int t = 1; t <= tt; t++) {
// cout << "Case #" << t << ": ";
solve();
}
return 0;
}