#include<perm.h>
#include<bits/stdio++.h>
using namespace std;
typedef long long ll;
void normalize(vector<float>& a) {
vector<float> b = a;
sort(b.begin(), b.end());
map<float, int> mp;
for (int i = 0; i < (int)b.size(); i++) mp[b[i]] = i;
for (int i = 0; i < (int)a.size(); i++) a[i] = mp[a[i]];
}
void insert(vector<float>& a, int x) {
int n = a.size();
if (x == 0) {
a.push_back(n);
a.push_back(n + 1);
return;
} else if (x == 1) {
a.push_back(n);
a.push_back(n + 1);
a.push_back(-1);
normalize(a);
return;
} else if (x == 2) {
a.push_back(n);
a.push_back(-1);
a.push_back(n + 1);
normalize(a);
return;
} else {
// x = 3
bool oneThenZero = false;
for (auto& i : a) {
if (i == 1) {
oneThenZero = true;
break;
} else if (i == 0) {
break;
}
}
if (oneThenZero) {
a.push_back(n);
a.push_back(n + 1);
a.push_back(1.5);
normalize(a);
return;
} else {
a.push_back(n);
a.push_back(-1);
a.push_back(n + 1);
a.push_back(-2);
normalize(a);
return;
}
}
}
vector<int> construct_permutation(ll k) {
vector<int> a;
while (k) {
a.push_back(k % 4);
k /= 4;
}
reverse(a.begin(), a.end());
vector<float> ans;
switch (a[0]) {
case 1:
break;
case 2:
ans.push_back(0);
break;
case 3:
ans.push_back(1);
ans.push_back(0);
break;
}
for (int i = 1; i < (int)a.size(); i++) {
insert(ans, a[i]);
}
vector<int> res(ans.begin(), ans.end());
return res;
}
Compilation message
mars.cpp:1:9: fatal error: perm.h: No such file or directory
1 | #include<perm.h>
| ^~~~~~~~
compilation terminated.
