結果

問題 No.1203 お菓子ゲーム
ユーザー cn_449
提出日時 2020-08-28 22:55:06
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 347 ms / 2,000 ms
コード長 2,993 bytes
コンパイル時間 1,647 ms
コンパイル使用メモリ 131,064 KB
最終ジャッジ日時 2025-01-13 19:01:09
ジャッジサーバーID
(参考情報)
judge5 / judge2
このコードへのチャレンジ
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ファイルパターン 結果
other AC * 51
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <string>
#include <queue>
#include <stack>
#include <set>
#include <map>
#include <iomanip>
#include <utility>
#include <tuple>
#include <functional>
#include <bitset>
#include <cassert>
#include <complex>
#include <stdio.h>
#include <time.h>
#include <numeric>
#include <random>
#include <unordered_map>
#include <unordered_set>
#define all(a) a.begin(),a.end()
#define rep(i, n) for (ll i = 0; i < (n); i++)
#define pb push_back
#define debug(x) cerr << __LINE__ << ' ' << #x << ':' << x << '\n'
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<ll, ll> P;
typedef complex<ld> com;
constexpr int inf = 1000000010;
constexpr ll INF = 1000000000000000010;
constexpr ld eps = 1e-12;
constexpr ld pi = 3.141592653589793238;
template<class T, class U> inline bool chmax(T &a, const U &b) { if (a < b) { a = b; return true; } return false; }
template<class T, class U> inline bool chmin(T &a, const U &b) { if (a > b) { a = b; return true; } return false; }
constexpr ll mod = 1000000007;
vector<ll> fac, inv, facinv;
void modcalc(int n) {
fac.resize(n); inv.resize(n); facinv.resize(n);
fac[0] = 1; fac[1] = 1; inv[1] = 1;
facinv[0] = 1; facinv[1] = 1;
for (ll i = 2; i < n; i++) {
fac[i] = fac[i - 1] * i % mod;
inv[i] = mod - inv[mod % i] * (mod / i) % mod;
facinv[i] = facinv[i - 1] * inv[i] % mod;
}
}
ll modinv(ll a) {
a %= mod;
if (a == 0) abort();
if (a < (ll)inv.size()) return inv[a];
ll b = mod, u = 1, v = 0;
while (b) {
ll t = a / b;
a -= t * b; swap(a, b);
u -= t * v; swap(u, v);
}
u %= mod;
if (u < 0) u += mod;
return u;
}
ll modpow(ll a, ll b, ll m = mod) {
ll ans = 1;
a %= m;
while (b) {
if (b & 1) ans = ans * a % m;
a = a * a % m;
b >>= 1;
}
return ans;
}
ll modcomb(ll n, ll k) {
if (n < 0 || k < 0 || n < k) return 0;
return fac[n] * facinv[k] % mod * facinv[n - k] % mod;
}
ll modperm(ll n, ll k) {
if (n < 0 || k < 0 || n < k) return 0;
return fac[n] * facinv[n - k] % mod;
}
ll modhom(ll n, ll k) {
if (n < 0 || k < 0 || n == 0 && k > 0) return 0;
if (n == 0 && k == 0) return 1;
return fac[n + k - 1] * facinv[k] % mod * facinv[n - 1] % mod;
}
int main() {
cin.tie(0);
ios::sync_with_stdio(false);
cout << fixed << setprecision(20);
const int s = 100000000;
int t;
cin >> t;
while (t--) {
ll x, y;
cin >> x >> y;
if (x * 2 == y) {
cout << "0\n";
continue;
}
if (x * 2 > y) x = y - x;
int ans = s / y;
vector<ll> check;
for (int i = 1; i * i <= y; i++) {
if (y % i == 0) {
check.pb(i);
if (i * i != y) check.pb(y / i);
}
}
for (ll d : check) {
if (d % 2 == 0 || d <= 2) continue;
ll a = y / d;
ll b = (d + 1) * (d / 2);
if (b % x != 0) continue;
b /= x;
if (a <= s && b <= s && a * b <= s && a * b > d) ans++;
}
cout << ans << '\n';
}
}
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