Submission #1542956
Source Code Expand
#include <ios> #include <iostream> #include <iomanip> #include <vector> #include <utility> #include <map> #include <algorithm> int x[200005] = {}; int y[200005] = {}; int dp[200005] = {}; int par[200005] = {}; std::vector<std::pair<int, int> > v; std::map<int, int> mp; std::vector<int> ans; inline int minimum(int a, int b) { return (a < b ? a : b); } inline int maximum(int a, int b) { return (a > b ? a : b); } inline int absolute(int a) { return (a < 0 ? -a : a); } struct segtree { int l, r; int max_val; int max_ind; segtree *left; segtree *right; segtree(int i, int j) { l = i; r = j; if (l == r) { left = NULL; right = NULL; max_val = 0; max_ind = -1; } else { int k = (l+r)/2; left = new segtree(l, k); right = new segtree(k+1, r); if (left->max_val > right->max_val) { max_ind = left->max_ind; max_val = left->max_val; } else { max_ind = right->max_ind; max_val = right->max_val; } } } void upd(int i, int a, int b) { if (l <= i && i <= r) { if (l == r) { max_val = a; max_ind = b; } else { left->upd(i, a, b); right->upd(i, a, b); if (left->max_val > right->max_val) { max_ind = left->max_ind; max_val = left->max_val; } else { max_ind = right->max_ind; max_val = right->max_val; } } } } std::pair<int, int> rmq(int i, int j) { if (i <= l && r <= j) return std::make_pair(max_val, max_ind); else if (j < l || r < i) return std::make_pair(0, -1); else { std::pair<int, int> lf = left->rmq(i, j); std::pair<int, int> rg = right->rmq(i, j); if (lf.first > rg.first) return lf; else return rg; } } }; int main() { std::ios_base::sync_with_stdio(false); std::cin.tie(NULL); std::cout.tie(NULL); int n; int x_s, y_s, x_t, y_t; std::cin >> x_s >> y_s >> x_t >> y_t; if (y_s > y_t) { int temp_x = x_s; int temp_y = y_s; x_s = x_t; y_s = y_t; x_t = temp_x; y_t = temp_y; } //s is the lower one std::cin >> n; for (int i = 0; i < n; i++) { std::cin >> x[i] >> y[i]; if (y[i] < y_s || y[i] > y_t || x[i] < minimum(x_s, x_t) || x[i] > maximum(x_s, x_t)) { i--; n--; } } if (n == 0) std::cout << 100LL*(absolute(x_s-x_t) + absolute(y_s-y_t)) << '\n'; else { //compute LIS of the remaining if (x_s < x_t) { for (int i = 0; i < n; i++) v.push_back(std::make_pair(x[i], y[i])); std::sort(v.begin(), v.end()); } else { for (int i = 0; i < n; i++) v.push_back(std::make_pair(-x[i], y[i])); } std::sort(v.begin(), v.end()); int c = 0; for (int i = 0; i < n; i++) mp[v[i].second]; for (std::map<int, int>::iterator it = mp.begin(); it != mp.end(); it++) it->second = c++; for (int i = 0; i < n; i++) v[i].second = mp[v[i].second]; segtree *tree = new segtree(0, n-1); for (int i = 0; i < n; i++) { if (v[i].second != 0) { std::pair<int, int> u = tree->rmq(0, v[i].second-1); dp[i] = u.first+1; par[i] = u.second; } else { dp[i] = 1; par[i] = -1; } tree->upd(v[i].second, dp[i], i); } int maxi = 0; for (int i = 0; i < n; i++) { if (dp[i] > dp[maxi]) maxi = i; } while (maxi >= 0) { ans.push_back(maxi); maxi = par[maxi]; } std::reverse(ans.begin(), ans.end()); if (ans.size() == minimum(y_t - y_s + 1, absolute(x_t-x_s)+1)) std::cout << std::fixed << std::setprecision(15) << 100LL*(absolute(x_s-x_t) + absolute(y_s-y_t)) - 4.292036732051031*((double)(ans.size())) + 15.707963267948969 << '\n'; else std::cout << std::fixed << std::setprecision(15) << 100LL*(absolute(x_s-x_t) + absolute(y_s-y_t)) - 4.292036732051031*((double)(ans.size())) << '\n'; } } /* . . > > O > B A > O . . . . 0 0 6 1 2 2 0 4 1 0 0 100000000 100000000 1 50000000 50000000 . . O . > > B A > > > O . . . . . . O . B . . . O . . . A . O . . . . . . . . O . B . . . . . . . . . . O . . . A . O . . . . . . . . O . B . . . . . O . . . . O . . . A . O . . . . 0 0 0 2 1 0 1 */
Submission Info
Submission Time | |
---|---|
Task | C - Fountain Walk |
User | robinyu |
Language | C++14 (GCC 5.4.1) |
Score | 900 |
Code Size | 5456 Byte |
Status | AC |
Exec Time | 318 ms |
Memory | 34928 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 900 / 900 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | sample_01.txt, sample_02.txt, sample_03.txt |
All | sample_01.txt, sample_02.txt, sample_03.txt, sample_01.txt, sample_02.txt, sample_03.txt, subtask_1_01.txt, subtask_1_02.txt, subtask_1_03.txt, subtask_1_04.txt, subtask_1_05.txt, subtask_1_06.txt, subtask_1_07.txt, subtask_1_08.txt, subtask_1_09.txt, subtask_1_10.txt, subtask_1_11.txt, subtask_1_12.txt, subtask_1_13.txt, subtask_1_14.txt, subtask_1_15.txt, subtask_1_16.txt, subtask_1_17.txt, subtask_1_18.txt, subtask_1_19.txt, subtask_1_20.txt, subtask_1_21.txt, subtask_1_22.txt, subtask_1_23.txt, subtask_1_24.txt, subtask_1_25.txt, subtask_1_26.txt, subtask_1_27.txt, subtask_1_28.txt, subtask_1_29.txt, subtask_1_30.txt, subtask_1_31.txt, subtask_1_32.txt, subtask_1_33.txt, subtask_1_34.txt, subtask_1_35.txt, subtask_1_36.txt, subtask_1_37.txt, subtask_1_38.txt, subtask_1_39.txt, subtask_1_40.txt, subtask_1_41.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
sample_01.txt | AC | 2 ms | 256 KB |
sample_02.txt | AC | 1 ms | 256 KB |
sample_03.txt | AC | 1 ms | 256 KB |
subtask_1_01.txt | AC | 1 ms | 256 KB |
subtask_1_02.txt | AC | 1 ms | 256 KB |
subtask_1_03.txt | AC | 1 ms | 256 KB |
subtask_1_04.txt | AC | 1 ms | 256 KB |
subtask_1_05.txt | AC | 1 ms | 256 KB |
subtask_1_06.txt | AC | 1 ms | 256 KB |
subtask_1_07.txt | AC | 1 ms | 256 KB |
subtask_1_08.txt | AC | 1 ms | 256 KB |
subtask_1_09.txt | AC | 14 ms | 256 KB |
subtask_1_10.txt | AC | 29 ms | 256 KB |
subtask_1_11.txt | AC | 8 ms | 256 KB |
subtask_1_12.txt | AC | 209 ms | 34928 KB |
subtask_1_13.txt | AC | 30 ms | 256 KB |
subtask_1_14.txt | AC | 14 ms | 256 KB |
subtask_1_15.txt | AC | 7 ms | 256 KB |
subtask_1_16.txt | AC | 206 ms | 34928 KB |
subtask_1_17.txt | AC | 25 ms | 256 KB |
subtask_1_18.txt | AC | 20 ms | 256 KB |
subtask_1_19.txt | AC | 20 ms | 512 KB |
subtask_1_20.txt | AC | 204 ms | 34928 KB |
subtask_1_21.txt | AC | 207 ms | 34928 KB |
subtask_1_22.txt | AC | 194 ms | 34928 KB |
subtask_1_23.txt | AC | 169 ms | 34928 KB |
subtask_1_24.txt | AC | 1 ms | 256 KB |
subtask_1_25.txt | AC | 1 ms | 256 KB |
subtask_1_26.txt | AC | 1 ms | 256 KB |
subtask_1_27.txt | AC | 1 ms | 256 KB |
subtask_1_28.txt | AC | 41 ms | 1408 KB |
subtask_1_29.txt | AC | 49 ms | 1152 KB |
subtask_1_30.txt | AC | 318 ms | 33136 KB |
subtask_1_31.txt | AC | 185 ms | 33136 KB |
subtask_1_32.txt | AC | 196 ms | 34928 KB |
subtask_1_33.txt | AC | 190 ms | 34032 KB |
subtask_1_34.txt | AC | 153 ms | 33136 KB |
subtask_1_35.txt | AC | 156 ms | 33136 KB |
subtask_1_36.txt | AC | 299 ms | 33136 KB |
subtask_1_37.txt | AC | 183 ms | 34672 KB |
subtask_1_38.txt | AC | 176 ms | 34032 KB |
subtask_1_39.txt | AC | 169 ms | 33904 KB |
subtask_1_40.txt | AC | 183 ms | 34032 KB |
subtask_1_41.txt | AC | 182 ms | 34032 KB |