Submission #601507

#TimeUsernameProblemLanguageResultExecution timeMemory
601507thezomb1ePermutation (APIO22_perm)C++17
64.62 / 100
12 ms1492 KiB
#include "perm.h" #include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> #define eb emplace_back #define pb push_back #define ft first #define sd second #define pi pair<int, int> #define all(x) (x).begin(), (x).end() #define rall(x) (x).rbegin(), (x).rend() #define dbg(...) dbg_out(__VA_ARGS__) using ll = long long; using ld = long double; using namespace std; using namespace __gnu_pbds; //Constants const ll INF = 5 * 1e18; const int IINF = 2 * 1e9; const ll MOD = 1e9 + 7; // const ll MOD = 998244353; const ll dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1}; const ld PI = 3.14159265359; //Templates template<typename A, typename B> ostream& operator<<(ostream &os, const pair<A, B> &p) {return os << '(' << p.first << ", " << p.second << ')';} template<typename T_container, typename T = typename enable_if<!is_same<T_container, string>::value, typename T_container::value_type>::type> ostream& operator<<(ostream &os, const T_container &v) {os << '['; string sep; for (const T &x : v) os << sep << x, sep = ", "; return os << ']';} void dbg_out() {cerr << endl;} template<typename Head, typename... Tail> void dbg_out(Head H, Tail... T) { cerr << H << ' '; dbg_out(T...); } template<typename T> void mins(T& x, T y) {x = min(x, y);} template<typename T> void maxs(T& x, T y) {x = max(x, y);} template<typename T> using oset = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>; template<typename T> using omset = tree<T, null_type, less_equal<T>, rb_tree_tag, tree_order_statistics_node_update>; vector<int> construct_permutation(ll k) { k--; int pp = 0, add = 0; vector<int> ans; for (int i = 0; i < 60; i++) { if (k & (1ll << i)) { for (int j = pp + i - 1; j >= pp; j--) { ans.pb(j); } add++; pp += i; } } for (int i = 0; i < add; i++) { ans.pb(pp++); } reverse(all(ans)); return ans; }
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