結果
問題 | No.2125 Inverse Sum |
ユーザー |
|
提出日時 | 2022-11-18 22:56:34 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 1,370 ms / 2,000 ms |
コード長 | 2,221 bytes |
コンパイル時間 | 4,649 ms |
コンパイル使用メモリ | 259,028 KB |
最終ジャッジ日時 | 2025-02-08 22:17:38 |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 30 |
ソースコード
#include <bits/stdc++.h>using namespace std;#include <atcoder/all>using namespace atcoder;using ll = long long;using vll = vector<ll>;using vvll = vector<vll>;using vvvll = vector<vvll>;using vvvvll = vector<vvvll>;using vvvvvll = vector<vvvvll>;using vvvvvvll = vector<vvvvvll>;using vb = vector<bool>;using vvb = vector<vb>;using vvvb = vector<vvb>;using vvvvb = vector<vvvb>;using vd = vector<double>;using vvd = vector<vd>;using vvvd = vector<vvd>;using vvvvd = vector<vvvd>;using vvvvvd = vector<vvvvd>;#define all(A) A.begin(),A.end()#define ALL(A) A.begin(),A.end()#define rep(i, n) for (ll i = 0; i < (ll) (n); i++)using pqr = priority_queue<pair<ll, ll>, vector<pair<ll, ll>>, greater<pair<ll, ll>>>;template<class T>bool chmax(T& p, T q, bool C = 1) {if (C == 0 && p == q) {return 1;}if (p < q) {p = q;return 1;}else {return 0;}}template<class T>bool chmin(T& p, T q, bool C = 1) {if (C == 0 && p == q) {return 1;}if (p > q) {p = q;return 1;}else {return 0;}}ll gcd(ll(a), ll(b)) {if (b == 0)return a;ll c = a;while (a % b != 0) {c = a % b;a = b;b = c;}return b;}ll sqrtz(ll N) {ll L = 0;ll R = sqrt(N) + 10000;while (abs(R - L) > 1) {ll mid = (R + L) / 2;if (mid * mid <= N)L = mid;else R = mid;}return L;}int main() {ll P,Q;cin>>P>>Q;set<pair<ll,ll>> AN;vll A;for(ll i=1;i*i<=Q;i++){if(Q%i==0){A.push_back(i);if(i*i!=Q)A.push_back(Q/i);}}ll d=A.size();sort(all(A));rep(ii,d){rep(jj,d){ll i=A[ii]*A[jj];ll x=i+Q;ll y=Q+((Q*Q)/i);if(x%P==0&&y%P==0){AN.insert({x/P,y/P});AN.insert({y/P,x/P});}x=(Q*Q/i)+Q;y=Q+((Q*Q)/(Q*Q/i));if(x%P==0&&y%P==0){AN.insert({x/P,y/P});AN.insert({y/P,x/P});}}}cout<<AN.size()<<endl;for(auto p:AN)cout<<p.first<<" "<<p.second<<endl;}