結果
| 問題 |
No.25 有限小数
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2018-03-13 05:00:20 |
| 言語 | C++11(廃止可能性あり) (gcc 13.3.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 4,171 bytes |
| コンパイル時間 | 1,441 ms |
| コンパイル使用メモリ | 165,368 KB |
| 実行使用メモリ | 8,320 KB |
| 最終ジャッジ日時 | 2024-11-17 07:18:29 |
| 合計ジャッジ時間 | 14,528 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 28 WA * 2 TLE * 1 |
コンパイルメッセージ
main.cpp: In function ‘int main()’:
main.cpp:83:26: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized]
83 | while (x % 10 == 0) x /= 10;
| ~~^~~~
ソースコード
#define _CRT_SECURE_NO_WARNINGS
#include "bits/stdc++.h"
#include <random>
using namespace std;
//呪文
#define DUMPOUT cerr
#define dump(...) DUMPOUT<<" ";DUMPOUT<<#__VA_ARGS__<<" :["<<__LINE__<<":"<<__FUNCTION__<<"]"<<endl;DUMPOUT<<" ";dump_func(__VA_ARGS__)
typedef unsigned uint; typedef long long ll; typedef unsigned long long ull; typedef pair<int, int> pii; typedef pair<ll, ll> pll; typedef pair<double, double> pdd; typedef pair<string, string> pss;
template <typename _KTy, typename _Ty> ostream& operator << (ostream& ostr, const pair<_KTy, _Ty>& m) { ostr << "{" << m.first << ", " << m.second << "}"; return ostr; }
template <typename _KTy, typename _Ty> ostream& operator << (ostream& ostr, const map<_KTy, _Ty>& m) { if (m.empty()) { ostr << "{ }"; return ostr; } ostr << "{" << *m.begin(); for (auto itr = ++m.begin(); itr != m.end(); itr++) { ostr << ", " << *itr; } ostr << "}"; return ostr; }
template <typename _Ty> ostream& operator << (ostream& ostr, const vector<_Ty>& v) { if (v.empty()) { ostr << "{ }"; return ostr; } ostr << "{" << v.front(); for (auto itr = ++v.begin(); itr != v.end(); itr++) { ostr << ", " << *itr; } ostr << "}"; return ostr; }
template <typename _Ty> ostream& operator << (ostream& ostr, const set<_Ty>& s) { if (s.empty()) { ostr << "{ }"; return ostr; } ostr << "{" << *(s.begin()); for (auto itr = ++s.begin(); itr != s.end(); itr++) { ostr << ", " << *itr; } ostr << "}"; return ostr; }
template <typename _Ty> ostream& operator << (ostream& ostr, const stack<_Ty>& s) { if (s.empty()) { ostr << "{ }"; return ostr; } stack<_Ty> t(s); ostr << "{" << t.top(); t.pop(); while (!t.empty()) { ostr << ", " << t.top(); t.pop(); } ostr << "}"; return ostr; }
template <typename _Ty> ostream& operator << (ostream& ostr, const list<_Ty>& l) { if (l.empty()) { ostr << "{ }"; return ostr; } ostr << "{" << l.front(); for (auto itr = ++l.begin(); itr != l.end(); ++itr) { ostr << ", " << *itr; } ostr << "}"; return ostr; }
template <typename _KTy, typename _Ty> istream& operator >> (istream& istr, pair<_KTy, _Ty>& m) { istr >> m.first >> m.second; return istr; }
template <typename _Ty> istream& operator >> (istream& istr, vector<_Ty>& v) { for (size_t i = 0; i < v.size(); i++) istr >> v[i]; return istr; }
namespace aux { // print tuple
template<typename Ty, unsigned N, unsigned L> struct tp { static void print(ostream& os, const Ty& v) { os << get<N>(v) << ", "; tp<Ty, N + 1, L>::print(os, v); } };
template<typename Ty, unsigned N> struct tp<Ty, N, N> { static void print(ostream& os, const Ty& value) { os << get<N>(value); } };
}
template<typename... Tys> ostream& operator<<(ostream& os, const tuple<Tys...>& t) { os << "{"; aux::tp<tuple<Tys...>, 0, sizeof...(Tys)-1>::print(os, t); os << "}"; return os; }
template<typename A, size_t N, typename T> inline void Fill(A(&array)[N], const T &val) { std::fill((T*)array, (T*)(array + N), val); }
void dump_func() { DUMPOUT << endl; }
template <class Head, class... Tail> void dump_func(Head&& head, Tail&&... tail) { DUMPOUT << head; if (sizeof...(Tail) == 0) { DUMPOUT << " "; } else { DUMPOUT << ", "; } dump_func(std::move(tail)...); }
#define PI 3.14159265358979323846
#define EPS 1e-11
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n) FOR(i,0,n)
#define all(x) (x).begin(), (x).end()
#define SZ(x) ((int)(x).size())
#define fake false
// FactorInteger(48) = {{2, 4}, {3, 1}};
template<typename KTy, typename Ty> map<KTy, Ty> FactorInteger(KTy n) {
map<KTy, Ty> mp;
KTy i;
for (i = 2; i*i <= n; i++) {
while (n % i == 0) {
mp[i]++;
n /= i;
}
}
if (n > 1) mp[n]++;
return mp;
}
int main()
{
//clock_t start, end;
//start = clock();
cin.tie(0);
ios::sync_with_stdio(false);
ll N, M;
cin >> N >> M;
map<ll, int> fac = FactorInteger<ll, int>(M);
bool divisible = true;
for (const auto& e : fac) {
if (e.first != 2 && e.first != 5) {
divisible = false;
}
}
if (divisible) {
ll x;
while (N) {
x = N / M;
N %= M;
N *= 10;
}
while (x % 10 == 0) x /= 10;
cout << x << endl;
}
else {
cout << -1 << endl;
}
//end = clock();
//printf("%d msec.\n", end - start);
return 0;
}