#include<bits/stdc++.h>
#define FOR(i,a,b) for(int i=a;i<b;++i)
#define FORD(i,a,b) for(int i=a;i>=b;--i)
#define PB push_back
#define EB emplace_back
#define FI first
#define SE second
#define umap unordered_map
#define uset unordered_set
#define vi vector<int>
#define vvi vector<vi>
#define vll vector<ll>
#define vvll vector<vll>
#define vpii vector<pii>
#define pii pair<int, int>
#define pll pair<ll, ll>
#define ALL(X) (X).begin(),(X).end()
#ifndef DEBUG
#define endl (char)10
#endif
using namespace std;
using ll = long long;
using ld = long double;
template <class T>
ostream& operator<< (ostream& os, const vector<T>& vec){
for(auto& t : vec) os << t << " ";
return os;
}
template<class T, class U>
ostream& operator<< (ostream& os, const pair<T, U>& p){
os << p.FI << " " << p.SE;
return os;
}
template<class T, class U>
istream& operator>> (istream& is, pair<T, U>& p){
is >> p.FI >> p.SE;
return is;
}
template <class T>
istream& operator>> (istream& is, vector<T>& vec){
for(auto& p : vec) is >> p;
return is;
}
bool ispal(vi& V, int b, int n) {
FOR(i,0,n / 2) if (V[b + i] != V[b + n - i - 1]) return false;
return true;
}
int longpal(vi& V){
FORD(n,V.size(),1){
FOR(p,0,V.size() - n + 1) {
if (ispal(V, p, n)) return n;
}
}
return -1;
}
void discov(int n, int k) {
vi pom(n);
FOR(i,0,(1 << n)) {
int icp = i;
FOR(i,0,n) {
pom[i] = icp % 2;
icp /= 2;
}
int v = longpal(pom);
if (v == k) {
FOR(ii,0,n) cout << "AP"[pom[ii]];
cout << endl;
return;
}
}
cout << "NIE" << endl;
}
int main () {
ios_base::sync_with_stdio(false);
cin.tie(0);
int t;
cin >> t;
while(t--) {
int n, k;
cin >> n >> k;
if (n <= 8) {
discov(n, k);
continue;
}
if (k < 4) {
cout << "NIE" << endl;
continue;
}
FOR(i,0,k) cout << "A";
string pom = "PAPPAAPAPPAA";
FOR(i,k,n) cout << pom[(i - k) % pom.size()];
cout << endl;
}
}
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 | #include<bits/stdc++.h> #define FOR(i,a,b) for(int i=a;i<b;++i) #define FORD(i,a,b) for(int i=a;i>=b;--i) #define PB push_back #define EB emplace_back #define FI first #define SE second #define umap unordered_map #define uset unordered_set #define vi vector<int> #define vvi vector<vi> #define vll vector<ll> #define vvll vector<vll> #define vpii vector<pii> #define pii pair<int, int> #define pll pair<ll, ll> #define ALL(X) (X).begin(),(X).end() #ifndef DEBUG #define endl (char)10 #endif using namespace std; using ll = long long; using ld = long double; template <class T> ostream& operator<< (ostream& os, const vector<T>& vec){ for(auto& t : vec) os << t << " "; return os; } template<class T, class U> ostream& operator<< (ostream& os, const pair<T, U>& p){ os << p.FI << " " << p.SE; return os; } template<class T, class U> istream& operator>> (istream& is, pair<T, U>& p){ is >> p.FI >> p.SE; return is; } template <class T> istream& operator>> (istream& is, vector<T>& vec){ for(auto& p : vec) is >> p; return is; } bool ispal(vi& V, int b, int n) { FOR(i,0,n / 2) if (V[b + i] != V[b + n - i - 1]) return false; return true; } int longpal(vi& V){ FORD(n,V.size(),1){ FOR(p,0,V.size() - n + 1) { if (ispal(V, p, n)) return n; } } return -1; } void discov(int n, int k) { vi pom(n); FOR(i,0,(1 << n)) { int icp = i; FOR(i,0,n) { pom[i] = icp % 2; icp /= 2; } int v = longpal(pom); if (v == k) { FOR(ii,0,n) cout << "AP"[pom[ii]]; cout << endl; return; } } cout << "NIE" << endl; } int main () { ios_base::sync_with_stdio(false); cin.tie(0); int t; cin >> t; while(t--) { int n, k; cin >> n >> k; if (n <= 8) { discov(n, k); continue; } if (k < 4) { cout << "NIE" << endl; continue; } FOR(i,0,k) cout << "A"; string pom = "PAPPAAPAPPAA"; FOR(i,k,n) cout << pom[(i - k) % pom.size()]; cout << endl; } } |
English