結果
問題 | No.955 ax^2+bx+c=0 |
ユーザー | hamray |
提出日時 | 2019-12-23 23:15:56 |
言語 | C++11 (gcc 11.4.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 8,260 bytes |
コンパイル時間 | 1,645 ms |
コンパイル使用メモリ | 173,992 KB |
実行使用メモリ | 10,752 KB |
最終ジャッジ日時 | 2024-09-19 03:53:10 |
合計ジャッジ時間 | 6,257 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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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 |
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testcase_00 | AC | 2 ms
10,752 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | AC | 2 ms
5,376 KB |
testcase_25 | AC | 2 ms
5,376 KB |
testcase_26 | AC | 2 ms
5,376 KB |
testcase_27 | AC | 2 ms
5,376 KB |
testcase_28 | AC | 2 ms
5,376 KB |
testcase_29 | AC | 1 ms
5,376 KB |
testcase_30 | AC | 1 ms
5,376 KB |
testcase_31 | AC | 1 ms
5,376 KB |
testcase_32 | AC | 1 ms
5,376 KB |
testcase_33 | AC | 2 ms
5,376 KB |
testcase_34 | WA | - |
testcase_35 | WA | - |
testcase_36 | WA | - |
testcase_37 | WA | - |
testcase_38 | WA | - |
testcase_39 | WA | - |
testcase_40 | WA | - |
testcase_41 | WA | - |
testcase_42 | WA | - |
testcase_43 | WA | - |
testcase_44 | WA | - |
testcase_45 | WA | - |
testcase_46 | WA | - |
testcase_47 | WA | - |
testcase_48 | WA | - |
testcase_49 | WA | - |
testcase_50 | WA | - |
testcase_51 | WA | - |
testcase_52 | WA | - |
testcase_53 | WA | - |
testcase_54 | WA | - |
testcase_55 | WA | - |
testcase_56 | WA | - |
testcase_57 | WA | - |
testcase_58 | WA | - |
testcase_59 | WA | - |
testcase_60 | WA | - |
testcase_61 | WA | - |
testcase_62 | AC | 1 ms
5,376 KB |
testcase_63 | WA | - |
testcase_64 | AC | 2 ms
5,376 KB |
testcase_65 | TLE | - |
testcase_66 | -- | - |
testcase_67 | -- | - |
testcase_68 | -- | - |
testcase_69 | -- | - |
testcase_70 | -- | - |
testcase_71 | -- | - |
testcase_72 | -- | - |
testcase_73 | -- | - |
testcase_74 | -- | - |
testcase_75 | -- | - |
testcase_76 | -- | - |
testcase_77 | -- | - |
testcase_78 | -- | - |
testcase_79 | -- | - |
testcase_80 | -- | - |
testcase_81 | -- | - |
testcase_82 | -- | - |
testcase_83 | -- | - |
testcase_84 | -- | - |
testcase_85 | -- | - |
testcase_86 | -- | - |
testcase_87 | -- | - |
testcase_88 | -- | - |
testcase_89 | -- | - |
testcase_90 | -- | - |
testcase_91 | -- | - |
testcase_92 | -- | - |
testcase_93 | -- | - |
testcase_94 | -- | - |
testcase_95 | -- | - |
testcase_96 | -- | - |
testcase_97 | -- | - |
testcase_98 | -- | - |
testcase_99 | -- | - |
testcase_100 | -- | - |
testcase_101 | -- | - |
testcase_102 | -- | - |
testcase_103 | -- | - |
testcase_104 | -- | - |
testcase_105 | -- | - |
testcase_106 | -- | - |
testcase_107 | -- | - |
testcase_108 | -- | - |
testcase_109 | -- | - |
testcase_110 | -- | - |
testcase_111 | -- | - |
testcase_112 | -- | - |
testcase_113 | -- | - |
testcase_114 | -- | - |
testcase_115 | -- | - |
testcase_116 | -- | - |
testcase_117 | -- | - |
testcase_118 | -- | - |
testcase_119 | -- | - |
testcase_120 | -- | - |
testcase_121 | -- | - |
testcase_122 | -- | - |
testcase_123 | -- | - |
testcase_124 | -- | - |
ソースコード
#include <bits/stdc++.h> #define M_PI 3.14159265358979323846 using namespace std; //typedef //-------------------------#include <bits/stdc++.h> #define M_PI 3.14159265358979323846 using namespace std; //conversion //------------------------------------------ inline int toInt(string s) { int v; istringstream sin(s); sin >> v; return v; } template<class T> inline string toString(T x) { ostringstream sout; sout << x; return sout.str(); } inline int readInt() { int x; scanf("%d", &x); return x; } //typedef //------------------------------------------ typedef vector<int> VI; typedef vector<VI> VVI; typedef vector<string> VS; typedef pair<int, int> PII; typedef pair<int, PII> TIII; typedef long long LL; typedef unsigned long long ULL; typedef vector<LL> VLL; typedef vector<VLL> VVLL; //container util //------------------------------------------ #define ALL(a) (a).begin(),(a).end() #define RALL(a) (a).rbegin(), (a).rend() #define PB push_back #define MP make_pair #define SZ(a) int((a).size()) #define SQ(a) ((a)*(a)) #define EACH(i,c) for(typeof((c).begin()) i=(c).begin(); i!=(c).end(); ++i) #define EXIST(s,e) ((s).find(e)!=(s).end()) #define SORT(c) sort((c).begin(),(c).end()) //repetition //------------------------------------------ #define FOR(i,s,n) for(int i=s;i<(int)n;++i) #define REP(i,n) FOR(i,0,n) #define MOD 1000000007 #define rep(i, a, b) for(int i = a; i < (b); ++i) #define trav(a, x) for(auto& a : x) #define all(x) x.begin(), x.end() #define sz(x) (int)(x).size() typedef long long ll; typedef pair<int, int> pii; typedef vector<int> vi; const double EPS = 1E-8; #define chmin(x,y) x=min(x,y) #define chmax(x,y) x=max(x,y) const int INF = 100000000; struct Edge { int to, from; ll cost; Edge(int from, int to, ll cost): from(from), to(to), cost(cost) {} }; class UnionFind { public: vector <ll> par; vector <ll> siz; vector <ll> maxv; UnionFind(ll sz_): par(sz_), siz(sz_, 1LL) { for (ll i = 0; i < sz_; ++i) par[i] = i; } void init(ll sz_) { par.resize(sz_); siz.assign(sz_, 1LL); for (ll i = 0; i < sz_; ++i) par[i] = i; } ll root(ll x) { while (par[x] != x) { x = par[x] = par[par[x]]; } return x; } bool merge(ll x, ll y) { x = root(x); y = root(y); if (x == y) return false; if (siz[x] < siz[y]) swap(x, y); siz[x] += siz[y]; par[y] = x; return true; } bool issame(ll x, ll y) { return root(x) == root(y); } ll size(ll x) { return siz[root(x)]; } }; typedef vector<vector<Edge>> AdjList; AdjList graph; ll mod_pow(ll x, ll n, ll mod){ ll res = 1; while(n){ if(n&1) res = res * x; if(res > mod){ res %= mod; } x = x * x %mod; n >>= 1; } return res; } #define SIEVE_SIZE 5000000+10 bool sieve[SIEVE_SIZE]; void make_sieve(){ for(int i=0; i<SIEVE_SIZE; ++i) sieve[i] = true; sieve[0] = sieve[1] = false; for(int i=2; i*i<SIEVE_SIZE; ++i) if(sieve[i]) for(int j=2; i*j<SIEVE_SIZE; ++j) sieve[i*j] = false; } bool isprime(ll n){ if(n == 0 || n == 1) return false; for(ll i=2; i*i<=n; ++i) if(n%i==0) return false; return true; } template<typename T> vector<T> gauss_jordan(const vector<vector<T>>& A, const vector<T>& b){ int n = A.size(); vector<vector<T>> B(n, vector<T>(n+1)); for(int i=0; i<n; ++i){ for(int j=0; j<n; ++j){ B[i][j] = A[i][j]; } } for(int i=0; i<n; ++i) B[i][n] = b[i]; for(int i=0; i<n; ++i){ int pivot = i; for(int j=i; j<n; ++j){ if(abs(B[j][i]) > abs(B[pivot][i])) pivot = j; } swap(B[i], B[pivot]); if(abs(B[i][i]) < EPS) return vector<T>(); //解なし for(int j=i+1; j<=n; ++j) B[i][j] /= B[i][i]; for(int j=0; j<n; ++j){ if(i != j){ for(int k=i+1; k<=n; ++k) B[j][k] -= B[i][j] * B[i][k]; } } } vector<T> x(n); for(int i=0; i<n; ++i) x[i] = B[i][n]; return x; } typedef vector<ll> vec; typedef vector<vec> mat; mat mul(mat &A, mat &B) { mat C(A.size(), vec((int)B[0].size())); for(int i=0; i<A.size(); ++i){ for(int k=0; k<B.size(); ++k){ for(int j=0; j<B[0].size(); ++j){ C[i][j] = (C[i][j] + A[i][k] * B[k][j] %MOD) % MOD; } } } return C; } mat mat_pow(mat A, ll n) { mat B(A.size(), vec((int)A.size())); for(int i=0; i<A.size(); ++i){ B[i][i] = 1; } while(n > 0) { if(n & 1) B = mul(B, A); A = mul(A, A); n >>= 1; } return B; } bool operator<(const pii& a, const pii& b){ if(a.first == b.first) return a.second < b.second; return a.first < b.first; } const int MAX = 510000; long long fac[MAX], finv[MAX], inv[MAX]; // テーブルを作る前処理 void COMinit() { fac[0] = fac[1] = 1; finv[0] = finv[1] = 1; inv[1] = 1; for (int i = 2; i < MAX; i++){ fac[i] = fac[i - 1] * i % MOD; inv[i] = MOD - inv[MOD%i] * (MOD / i) % MOD; finv[i] = finv[i - 1] * inv[i] % MOD; } } // 二項係数計算 long long COM(int n, int k){ if (n < k) return 0; if (n < 0 || k < 0) return 0; return fac[n] * (finv[k] * finv[n - k] % MOD) % MOD; } int bit[1000010]; int sums(int i){ i++; int s = 0; while(i > 0){ s += bit[i]; i -= i & -i; } return s; } void add(int i, int x){ i++; while(i <= 1000010){ bit[i] += x; i += i & -i; } } long long extGCD(long long a, long long b, long long &x, long long &y) { if (b == 0) { x = 1; y = 0; return a; } long long d = extGCD(b, a%b, y, x); y -= a/b * x; return d; } ll GCD(ll a, ll b){ if(b == 0) return a; return GCD(b, a%b); } struct BipartiteMatching { vector< vector< int > > graph; vector< int > match, alive, used; int timestamp; BipartiteMatching(int n) : graph(n), alive(n, 1), used(n, 0), match(n, -1), timestamp(0) {} void add_edge(int u, int v) { graph[u].push_back(v); graph[v].push_back(u); } bool dfs(int idx) { used[idx] = timestamp; for(auto &to : graph[idx]) { int to_match = match[to]; if(alive[to] == 0) continue; if(to_match == -1 || (used[to_match] != timestamp && dfs(to_match))) { match[idx] = to; match[to] = idx; return true; } } return false; } int bipartite_matching() { int ret = 0; for(int i = 0; i < graph.size(); i++) { if(alive[i] == 0) continue; if(match[i] == -1) { ++timestamp; ret += dfs(i); } } return ret; } void output() { for(int i = 0; i < graph.size(); i++) { if(i < match[i]) { cout << i << "-" << match[i] << endl; } } } }; int P[1510], Q[1510], R[1510]; vector<vector<pii>> G(110); bool visited[110]; ll ans[110]; ll dist[110]; void dfs(int v, ll c){ visited[v] = true; if(G[v].size() == 0){ ans[v] += c; return; }else{ for(int i=0; i<G[v].size(); i++){ pii p = G[v][i]; ll nc = p.second; int u = p.first; dfs(u, c*nc); } } } ll N, D, T; ll X[110]; int main() { cin.tie(0); ios::sync_with_stdio(false); cout << fixed << setprecision(15); double a, b, c; cin >> a >> b >> c; if(b*b - 4*a*c<0){ cout << 0 << endl; }else if(b*b-4*a*c == 0){ cout << 1 << endl; cout << -b/2/a << endl; }else{ cout << 2 << endl; ll t = b*b-4*a*c; double lb = 0, ub = 10000000010; while(ub-lb>0.000000000000001){ double mid = (ub+lb)/2; if(mid*mid == t){ lb = mid; break; }else if(mid*mid > t){ ub = mid; }else{ lb = mid; } } cout << (-b-lb)/2/a << endl; cout << (-b+lb)/2/a << endl; } return 0; }