#include <bits/stdc++.h>
#define lsb(x) (x & (-x))
#define ll long long
#define ull unsigned long long
/*const int MOD = 998244353;
inline int lgput(int a, int b) {
int ans = 1;
while(b > 0) {
if(b & 1) ans = (1LL * ans * a) % MOD;
b >>= 1;
a = (1LL * a * a) % MOD;
}
return ans;
}
inline void mod(int &x) {
if(x >= MOD)
x -= MOD;
}
inline void add(int &x, int y) {
x += y;
mod(x);
}
inline void sub(int &x, int y) {
x += MOD - y;
mod(x);
}
inline void mul(int &x, int y) {
x = (1LL * x * y) % MOD;
}
inline int inv(int x) {
return lgput(x, MOD - 2);
}*/
/*int fact[], invfact[];
inline void prec(int n) {
fact[0] = 1;
for(int i = 1; i <= n; i++) {
fact[i] = (1LL * fact[i - 1] * i) % MOD;
}
invfact[n] = lgput(fact[n], MOD - 2);
for(int i = n - 1; i >= 0; i--) {
invfact[i] = (1LL * invfact[i + 1] * (i + 1)) % MOD;
}
}
inline int comb(int n, int k) {
if(n < k) return 0;
return (1LL * fact[n] * (1LL * invfact[k] * invfact[n - k] % MOD)) % MOD;
}*/
using namespace std;
#define x first
#define y second
const int INF = 1e9;
int main() {
#ifdef HOME
ifstream cin("A.in");
ofstream cout("A.out");
#endif
int i, j, n, m;
ios::sync_with_stdio(false);
cin.tie(0), cout.tie(0);
cin >> n >> m;
vector < pair <int, int> > hole(n), tree(m);
for(auto &it : hole) {
cin >> it.x >> it.y;
}
for(auto &it : tree) {
cin >> it.x >> it.y;
}
sort(hole.begin(), hole.end());
sort(tree.begin(), tree.end());
auto ccw = [&](pair <int, int> &a, pair <int, int> &b, pair <int, int> &c) {
return a.x * b.y + b.x * c.y + c.x * a.y - a.y * b.x - b.y * c.x - c.y * a.x;
};
vector < vector <int> > cnt(n, vector <int>(n));
for(i = 0; i < n; i++) {
for(auto &it : tree) {
if(hole[i].x == it.x && it.y <= hole[i].y) {
cnt[i][i]++;
}
}
for(j = i + 1; j < n; j++) {
for(auto &it : tree) {
if(hole[i].x <= it.x && it.x <= hole[j].x && ccw(hole[i], it, hole[j]) > 0) {
cnt[i][j]++;
}
}
}
}
vector < vector <int> > up(n, vector <int>(n, INF)), down(n, vector <int>(n, INF));
for(int len = 1; len < n; len++) {
for(i = 0; i + len < n; i++) {
j = i + len;
up[i][j] = 40 - cnt[i][j] * 111;
down[i][j] = 40 + cnt[i][j] * 111;
for(int k = i + 1; k < j; k++) {
if(ccw(hole[i], hole[k], hole[j]) < 0) {
up[i][j] = min(up[i][j], up[i][k] + up[k][j] - 20 + 111 * cnt[k][k]);
}
else {
down[i][j] = min(down[i][j], down[i][k] + down[k][j] - 20 - 111 * cnt[k][k]);
}
}
}
}
int ans = 111 * m;
for(i = 0; i < n; i++) {
for(j = i; j < n; j++) {
ans = min(ans, up[i][j] + down[i][j] - 40 + 111 * m);
}
}
cout << ans;
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
504 KB |
Output is correct |
| 2 |
Correct |
2 ms |
416 KB |
Output is correct |
