結果
問題 | No.1179 Quadratic Equation |
ユーザー |
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提出日時 | 2020-08-21 22:28:11 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 2 ms / 2,000 ms |
コード長 | 2,181 bytes |
コンパイル時間 | 2,215 ms |
コンパイル使用メモリ | 200,128 KB |
最終ジャッジ日時 | 2025-01-13 06:14:04 |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 11 |
ソースコード
#include <bits/stdc++.h>using namespace std;using LL = long long int;#define incID(i, l, r) for(int i = (l) ; i < (r); ++i)#define incII(i, l, r) for(int i = (l) ; i <= (r); ++i)#define decID(i, l, r) for(int i = (r) - 1; i >= (l); --i)#define decII(i, l, r) for(int i = (r) ; i >= (l); --i)#define inc(i, n) incID(i, 0, n)#define inc1(i, n) incII(i, 1, n)#define dec(i, n) decID(i, 0, n)#define dec1(i, n) decII(i, 1, n)#define inID(v, l, r) ((l) <= (v) && (v) < (r))#define inII(v, l, r) ((l) <= (v) && (v) <= (r))#define PB push_back#define EB emplace_back#define MP make_pair#define FI first#define SE second#define ALL(v) v.begin(), v.end()#define RALL(v) v.rbegin(), v.rend()auto setmin = [](auto & a, auto b) { return (b < a ? a = b, true : false); };auto setmax = [](auto & a, auto b) { return (b > a ? a = b, true : false); };auto setmineq = [](auto & a, auto b) { return (b <= a ? a = b, true : false); };auto setmaxeq = [](auto & a, auto b) { return (b >= a ? a = b, true : false); };auto fl = [](auto a, auto b) { assert(b != 0); return a / b - (a % b != 0 && ((a >= 0) != (b >= 0)) ? 1 : 0); };auto ce = [](auto a, auto b) { assert(b != 0); return a / b + (a % b != 0 && ((a >= 0) == (b >= 0)) ? 1 : 0); };auto mo = [](auto a, auto b) { assert(b != 0); a %= b; if(a < 0) { a += abs(b); } return a; };LL gcd(LL a, LL b) { return (b == 0 ? a : gcd(b, a % b)); }LL lcm(LL a, LL b) { return a / gcd(a, b) * b; }#define bit(b, i) (((b) >> (i)) & 1)#define SI(v) static_cast<int>(v.size())#define RF(e, v) for(auto & e: v)#define until(e) while(! (e))#define if_not(e) if(! (e))#define ef else if#define UR assert(false)// ---- ----using LD = long double;int main() {LL a, b, c, d;cin >> a >> b >> c;if(b < 0) { a = -a; b = -b; c = -c; }d = b * b - 4 * a * c;LD A = a, B = b, C = c, D = d;vector<LD> ans;if(d < 0) { puts("imaginary"); exit(0); }if(d == 0) { ans.PB(-B / (2 * A)); }if(d > 0) {ans.PB(-(B + sqrt(D)) / (2 * A));ans.PB(-(2 * C) / (B + sqrt(D)));}sort(ALL(ans));inc(i, SI(ans)) { if(i > 0) { cout << " "; } printf("%.15Lf", ans[i]); }cout << endl;return 0;}