結果
問題 | No.897 compαctree |
ユーザー | ミドリムシ |
提出日時 | 2020-03-18 14:33:14 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 2 ms / 2,000 ms |
コード長 | 3,691 bytes |
コンパイル時間 | 1,765 ms |
コンパイル使用メモリ | 168,796 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-05-08 02:18:17 |
合計ジャッジ時間 | 2,168 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
5,248 KB |
testcase_01 | AC | 1 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 2 ms
5,376 KB |
testcase_12 | AC | 2 ms
5,376 KB |
testcase_13 | AC | 1 ms
5,376 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using lint = long long; using lint128 = __int128_t; const lint mod = 998244353; #define all(x) (x).begin(), (x).end() #define bitcount(n) __builtin_popcountl((lint)(n)) #define fcout cout << fixed << setprecision(15) #define highest(x) (63 - __builtin_clzl(x)) template<class T> inline void YES(T condition){ if(condition) cout << "YES" << endl; else cout << "NO" << endl; } template<class T> inline void Yes(T condition){ if(condition) cout << "Yes" << endl; else cout << "No" << endl; } template<class T> inline void assert_NO(T condition){ if(!condition){ cout << "NO" << endl; exit(0); } } template<class T> inline void assert_No(T condition){ if(!condition){ cout << "No" << endl; exit(0); } } template<class T> inline void assert_minus_1(T condition){ if(!condition){ cout << -1 << endl; exit(0); } } lint power(lint base, lint exponent, lint module){ if(exponent & 1){ return power(base, exponent - 1, module) * base % module; }else if(exponent){ lint root_ans = power(base, exponent >> 1, module); return root_ans * root_ans % module; }else{ return 1; }} lint128 power128(lint128 base, lint128 exponent, lint128 module){ if(exponent & 1){ return power128(base, exponent - 1, module) * base % module; }else if(exponent){ lint128 root_ans = power128(base, exponent >> 1, module); return root_ans * root_ans % module; }else{ return 1; }} struct position{ int y, x; }; position mv[4] = {{0, -1}, {1, 0}, {0, 1}, {-1, 0}}; // double euclidean(position first, position second){ return sqrt((second.x - first.x) * (second.x - first.x) + (second.y - first.y) * (second.y - first.y)); } template<class T, class U> string to_string(pair<T, U> x){ return to_string(x.first) + "," + to_string(x.second); } string to_string(string x){ return x; } template<class itr> void array_output(itr start, itr goal){ string ans; for(auto i = start; i != goal; i++) ans += to_string(*i) + " "; if(!ans.empty()) ans.pop_back(); cout << ans << endl; } template<class itr> void cins(itr first, itr last){ for(auto i = first; i != last; i++){ cin >> (*i); } } template<class T> T gcd_calc(T a, T b){ if(b){ return gcd_calc(b, a % b); }else{ return a; }} template<class T> T gcd(T a, T b){ if(a < b) swap(a, b); return gcd_calc(a, b); } template<class T> T lcm(T a, T b){ return a / gcd(a, b) * b; } struct combination{ vector<lint> fact, inv; combination(int sz) : fact(sz + 1), inv(sz + 1){ fact[0] = 1; for(int i = 1; i <= sz; i++){ fact[i] = fact[i - 1] * i % mod; } inv[sz] = power(fact[sz], mod - 2, mod); for(int i = sz - 1; i >= 0; i--){ inv[i] = inv[i + 1] * (i + 1) % mod; } } lint C(int p, int q) const{ if(q < 0 || p < q) return 0; return (fact[p] * inv[q] % mod * inv[p - q] % mod); } }; template<class itr> bool next_sequence(itr first, itr last, int max_bound){ itr now = last; while(now != first){ now--; (*now)++; if((*now) == max_bound){ (*now) = 0; }else{ return true; } } return false; } template<class T> bool chmax(T &a, const T &b){ if(a < b){ a = b; return 1; } return 0; } template<class T> bool chmin(T &a, const T &b){ if(b < a){ a = b; return 1; } return 0; } inline int at(int x, int k){ return (x >> k) & 1; } random_device rnd; #define rep(i, n) for(int i = 0; i < n; i++) int main(){ int Q; cin >> Q; rep(c, Q){ lint N, K; cin >> N >> K; if(K == 1){ cout << N - 1 << endl; continue; } for(int i = 0; true; i++){ //cout << lint((power128(K, i + 1, 4e36) - 1) / lint128(K - 1)) << endl; if(N <= (power128(K, i + 1, 4e36) - 1) / lint128(K - 1)){ cout << i << endl; break; } } } }