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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#87742 | #5103. Fair Division | zoker# | WA | 0ms | 3396kb | C++17 | 3.2kb | 2023-03-14 08:35:38 | 2023-03-14 08:35:41 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
//#pragma GCC optimize("O3,unroll-loops")
//#pragma GCC target("avx2,bmi,bmi2,lzcnt")
using ll = long long int;
using ull = unsigned long long int;
using vi = vector<ll>;
using ii = pair<ll,ll>;
using vii = vector<ii>;
using ld = long double;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
template<class T>
using ordered_set = tree < T, null_type, less<T>,
rb_tree_tag,
tree_order_statistics_node_update >;
#ifdef SA_DEBUG
template <class T>
void print(T a) {cerr << a << endl;}
template <class T, class... V>
void print(T a, V... b) {cerr << a << ", "; print(b...);}
#define dbg(...) cerr << "[" << __LINE__ << "] " << #__VA_ARGS__ << " :: ", print(__VA_ARGS__)
#else
#define dbg(...) 7
#endif
#define eb emplace_back
#define fi first
#define se second
const ll INFL = 2e18;
const int INF = 1e9;
const double PI = acos(-1);
const ll mod = 1e9+7;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
template<class T, class V>
ostream& operator << (ostream &s, pair<T, V> a){
s << a.fi << ' ' << a.se; return s;
}
template<class T, class V>
istream& operator >> (istream &s, pair<T, V> &a){
s >> a.fi >> a.se; return s;
}
template<class T>
ostream& operator << (ostream &s, vector<T> a){
for(int i = 0; i < (int)a.size(); i++){
if(i > 0)s << ' ' ;
s << a[i];
} return s;
}
template<class T>
istream& operator >> (istream &s, vector<T> &a){
for(T &x : a)s >> x;
return s;
}
template<class T>
void input(T a[], int l, int r, istream &s = cin){
while(l <= r)s >> a[l++];
}
template<class T>
void output(T a[], int l, int r, bool en = true, ostream &s = cout){
while(l <= r){ s << a[l++];
if(l <= r) s << ' ';
} if(en)s << "\n";
}
const int N = 1e6+3, K = 26;
//====================================================================//
__int128 mx = 1e30;
__int128 pw(__int128 a, __int128 b){
__int128 ans = 1;
while(b){
if(a > mx)return mx;
if(b & 1){
ans = ans * a;
if(ans > mx)return mx;
}
a = a * a;
b >>= 1;
}
return ans;
}
bool ok(ll n, ll m, ll p, ll q){
ll calc = 0;
for(int i = 0; i < n; i++){
calc = calc + pw(q, i) * pw(p, n - i - 1);
}
for(int i = 1; i <= n; i++){
ll t = pw(q, n - i) * pw(p, i - 1) * m;
if(t % calc)return false;
}
return true;
}
void testcase(){
ll n, m;
cin >> n >> m;
//while(true){
//for(int q = 2; q <= 100; q++){
//for(int p = 1; p < q; p++){
//if(p / __gcd(p, q) == 1)continue;
//if(ok(n, m, p, q)){
//dbg(m, p, q);
//return;
//}
//}
//}
//m++;
//}
for(int q = 2; q <= 100; q++){
for(int p = 1; p < q; p++){
__int128 dif = pw(q, n) - pw(p, n);
if(dif == 0)continue;
if(m % dif == 0){
cout << q - p << ' ' << q << "\n";
return;
}
}
}
cout << "impossible\n";
}
int main(){
ios::sync_with_stdio(false);
cin.tie(NULL);
int T = 1;
//cin >> T;
for(int qq = 1; qq <= T; ++qq){
//cout << "Case #" << qq << ": ";
testcase();
}
return 0;
}
/*
100 3 1
S 1 4 2
S 2 3 5
M 3 4 6
6 51
*/
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 0
Wrong Answer
time: 0ms
memory: 3396kb
input:
13 382475111752106101
output:
impossible
result:
wrong answer 1st lines differ - expected: '17 28', found: 'impossible'