結果
| 問題 |
No.2066 Simple Math !
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2022-09-02 22:38:56 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 3,530 bytes |
| コンパイル時間 | 867 ms |
| コンパイル使用メモリ | 102,324 KB |
| 実行使用メモリ | 13,644 KB |
| 最終ジャッジ日時 | 2024-11-16 04:51:14 |
| 合計ジャッジ時間 | 46,493 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 1 |
| other | AC * 23 TLE * 8 |
ソースコード
#include <cassert>
#include <cmath>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <algorithm>
#include <bitset>
#include <complex>
#include <deque>
#include <functional>
#include <iostream>
#include <map>
#include <numeric>
#include <queue>
#include <set>
#include <sstream>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>
using namespace std;
// using Int = long long;
template <class T1, class T2> ostream &operator<<(ostream &os, const pair<T1, T2> &a) { return os << "(" << a.first << ", " << a.second << ")"; };
template <class T> ostream &operator<<(ostream &os, const vector<T> &as) { const int sz = as.size(); os << "["; for (int i = 0; i < sz; ++i) { if (i >= 256) { os << ", ..."; break; } if (i > 0) { os << ", "; } os << as[i]; } return os << "]"; }
template <class T> void pv(T a, T b) { for (T i = a; i != b; ++i) cerr << *i << " "; cerr << endl; }
template <class T> bool chmin(T &t, const T &f) { if (t > f) { t = f; return true; } return false; }
template <class T> bool chmax(T &t, const T &f) { if (t < f) { t = f; return true; } return false; }
constexpr unsigned __int128 toUInt128(const char *s) {
unsigned __int128 x = 0;
for (; *s; ++s) x = x * 10 + (*s - '0');
return x;
}
constexpr __int128 toInt128(const char *s) {
if (*s == '-') return -toInt128(s + 1);
__int128 x = 0;
for (; *s; ++s) x = x * 10 + (*s - '0');
return x;
}
unsigned __int128 inUInt128() {
static char buf[41];
scanf("%s", buf);
return toUInt128(buf);
}
__int128 inInt128() {
static char buf[41];
scanf("%s", buf);
return toInt128(buf);
}
void out(unsigned __int128 x) {
static char buf[41];
int len = 0;
do { buf[len++] = '0' + static_cast<int>(x % 10); } while (x /= 10);
for (int i = len; --i >= 0; ) putchar(buf[i]);
}
void out(__int128 x) {
if (x < 0) {
putchar('-');
out(-static_cast<unsigned __int128>(x));
} else {
out(static_cast<unsigned __int128>(x));
}
}
std::ostream &operator<<(std::ostream &os, unsigned __int128 x) {
static char buf[41];
int len = 0;
do { buf[len++] = '0' + static_cast<int>(x % 10); } while (x /= 10);
for (int i = len; --i >= 0; ) os << buf[i];
return os;
}
std::ostream &operator<<(std::ostream &os, __int128 x) {
if (x < 0) {
os << '-' << -static_cast<unsigned __int128>(x);
} else {
os << static_cast<unsigned __int128>(x);
}
return os;
}
using Int = __int128;
Int gcd(Int a, Int b) {
return b ? gcd(b, a % b) : a;
}
inline Int floor(Int a, Int m) { return a / m - ((a % m < 0) ? 1 : 0); }
Int sumFloors(Int m, Int a, Int b, Int l, Int r) {
if (l > r) return 0;
const Int q = floor(a, m);
const Int aa = a - q * m;
const Int ll = floor(aa * l + b, m) + 1;
const Int rr = floor(aa * r + b, m);
return q * ((r + 1) * r / 2 - l * (l - 1) / 2) + r * rr - (l - 1) * (ll - 1) + (rr - ll + 1) + sumFloors(aa, -m, b, ll, rr);
}
int main() {
for (int numCases; ~scanf("%d", &numCases); ) { for (int caseId = 1; caseId <= numCases; ++caseId) {
Int P = inInt128();
Int Q = inInt128();
const Int K = inInt128();
const Int G = gcd(P, Q);
P /= G;
Q /= G;
Int lo = -1, hi = Q * K + 1;
for (; lo + 1 < hi; ) {
const Int mid = (lo + hi) / 2;
const Int num = sumFloors(Q, -P, mid + Q, 0, min(mid / P, Q - 1));
((num >= K + 1) ? hi : lo) = mid;
}
Int ans = hi;
ans *= G;
out(ans);
puts("");
}
#ifndef LOCAL
break;
#endif
}
return 0;
}