# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
258419 | fivefourthreeone | Unscrambling a Messy Bug (IOI16_messy) | 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 GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
#include <bits/stdc++.h>
#define owo(i,a, b) for(int i=(a);i<(b); ++i)
#define uwu(i,a, b) for(int i=(a)-1; i>=(b); --i)
#define senpai push_back
#define ttgl pair<int, int>
#define ayaya cout<<"ayaya~"<<endl
using namespace std;
/*#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
gpu_hash_table<int, int> mp;
#define ordered_set tree<ttgl, null_type,less<ttgl>, rb_tree_tag,tree_order_statistics_node_update>
*/
using ll = long long;
using ld = long double;
const ll MOD = 1000000007;
const ll root = 62;
int gcd(int a,int b){return b?gcd(b,a%b):a;}
ll binpow(ll a,ll b){ll res=1;while(b){if(b&1)res=(res*a)%MOD;a=(a*a)%MOD;b>>=1;}return res;}
ll modInv(ll a){return binpow(a, MOD-2);}
const double PI = acos(-1);
const double eps = -1e6;
const int INF = 0x3f3f3f3f;
const int NINF = 0xc0c0c0c0;
const ll INFLL = 0x3f3f3f3f3f3f3f3f;
const ll NINFLL = 0xc0c0c0c0c0c0c0c0;
int ans[128];
void place(int l, int r) {
string s;
owo(i, 0, n) {
if(i>=l&&i<=r) {
s+='1';
}else {
s+='0';
}
}
int mid = (l+r)/2;
owo(i, l, mid+1) {
s[i] = '0';
add_element(s);
s[i] = '1';
}
place(l, mid);
place(mid+1, r);
}
void solve(int l, int r) {
string s;
owo(i, 0, n) {
if(i>=l&&i<=r) {
s+='1';
}else {
s+='0';
}
}
int mid = (l+r)/2;
owo(i, l, mid+1) {
s[i] = '0';
if(!check_element(s)) {
int k = ans[r-i+l];
ans[r-i+l] = ans[i];
ans[i] = k;
}
s[i] = '1';
}
}
void restore_permutation(int N, int w, int r, int* result) {
n = N;
owo(i, 0, n) {
ans[i] = i;
}
place(0, n-1);
compile_set();
solve(0, n-1);
owo(i, 0, n) {
result[i] = ans[i];
}
}
/*int main() {
//freopen("file.in", "r", stdin);
//freopen("file.out", "w", stdout);
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
cin.tie(0)->sync_with_stdio(0);
cin>>n;
return 0;
}*/