結果
問題 | No.10 +か×か |
ユーザー | hamray |
提出日時 | 2020-03-04 23:19:15 |
言語 | C++11 (gcc 11.4.0) |
結果 |
MLE
|
実行時間 | - |
コード長 | 9,387 bytes |
コンパイル時間 | 1,471 ms |
コンパイル使用メモリ | 173,240 KB |
実行使用メモリ | 814,100 KB |
最終ジャッジ日時 | 2024-10-14 00:35:18 |
合計ジャッジ時間 | 4,733 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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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
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 35 ms
13,312 KB |
testcase_04 | MLE | - |
testcase_05 | -- | - |
testcase_06 | -- | - |
testcase_07 | -- | - |
testcase_08 | -- | - |
testcase_09 | -- | - |
testcase_10 | -- | - |
testcase_11 | -- | - |
ソースコード
#include <bits/stdc++.h> //typedef //-------------------------#include <bits/stdc++.h> const double pi = 3.141592653589793238462643383279; 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<long long, long long> PLL; 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) class UnionFind { public: vector <int> par; vector <int> siz; UnionFind(int sz_): par(sz_), siz(sz_, 1) { for (ll i = 0; i < sz_; ++i) par[i] = i; } void init(int sz_) { par.resize(sz_); siz.assign(sz_, 1LL); for (ll i = 0; i < sz_; ++i) par[i] = i; } int root(int x) { while (par[x] != x) { x = par[x] = par[par[x]]; } return x; } bool merge(int x, int 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(int x, int y) { return root(x) == root(y); } int size(int x) { return siz[root(x)]; } }; class WeightedUnionFind{ public: vector <int> par; vector <int> siz; vector <ll> diff_weight; /* 頂点間の重みの差 */ WeightedUnionFind(int sz_): par(sz_), siz(sz_, 1LL), diff_weight(sz_, 0LL){ for(int i=0; i<sz_; i++) par[i] = i; } void init(int sz_){ par.resize(sz_); siz.assign(sz_, 1LL); diff_weight.resize(sz_); for(int i=0; i<sz_; i++) par[i] = i, diff_weight[i] = 0; } int root(int x){ if(par[x] == x){ return x; }else{ int r = root(par[x]); diff_weight[x] += diff_weight[par[x]]; return par[x] = r; } } ll weight(ll x){ root(x); return diff_weight[x]; } bool issame(int x, int y){ return root(x) == root(y); } bool merge(int x, int y, ll w){ w += weight(x); w -= weight(y); x = root(x); y = root(y); if(x == y) return false; if (siz[x] < siz[y]) swap(x, y), w = -w; siz[x] += siz[y]; par[y] = x; diff_weight[y] = w; return true; } ll diff(int x, int y){ return weight(y) - weight(x); } }; ll modPow(ll x, ll n, ll mod = MOD){ if(n <= 0) return 1; ll res = 1; while(n){ if(n&1) res = (res * x)%mod; res %= mod; x = x * x %mod; n >>= 1; } return res; } #define SIEVE_SIZE 500000+10 bool sieve[SIEVE_SIZE]; void makeSieve(){ 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; } const int MAX = 2000010; 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; } 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; } // 負の数にも対応した mod (a = -11 とかでも OK) inline long long mod(long long a, long long m) { return (a % m + m) % m; } // 逆元計算 (ここでは a と m が互いに素であることが必要) long long modinv(long long a, long long m) { long long x, y; extGCD(a, m, x, y); return mod(x, m); // 気持ち的には x % m だが、x が負かもしれないので } ll GCD(ll a, ll b){ if(b == 0) return a; return GCD(b, a%b); } template< typename Monoid, typename OperatorMonoid = Monoid > struct LazySegmentTree { using F = function< Monoid(Monoid, Monoid) >; using G = function< Monoid(Monoid, OperatorMonoid) >; using H = function< OperatorMonoid(OperatorMonoid, OperatorMonoid) >; using P = function< OperatorMonoid(OperatorMonoid, int) >; int sz; vector< Monoid > data; vector< OperatorMonoid > lazy; const F f; const G g; const H h; const P p; const Monoid M1; const OperatorMonoid OM0; LazySegmentTree(int n, const F f, const G g, const H h, const P p, const Monoid &M1, const OperatorMonoid OM0) : f(f), g(g), h(h), p(p), M1(M1), OM0(OM0) { sz = 1; while(sz < n) sz <<= 1; data.assign(2 * sz, M1); lazy.assign(2 * sz, OM0); } void set(int k, const Monoid &x) { data[k + sz] = x; } void build() { for(int k = sz - 1; k > 0; k--) { data[k] = f(data[2 * k + 0], data[2 * k + 1]); data[k] %= MOD; } } void propagate(int k, int len) { if(lazy[k] != OM0) { if(k < sz) { lazy[2 * k + 0] = h(lazy[2 * k + 0], lazy[k]); lazy[2 * k + 1] = h(lazy[2 * k + 1], lazy[k]); } data[k] = g(data[k], p(lazy[k], len)); lazy[k] = OM0; } } Monoid update(int a, int b, const OperatorMonoid &x, int k, int l, int r) { propagate(k, r - l); if(r <= a || b <= l) { return data[k]; } else if(a <= l && r <= b) { lazy[k] = h(lazy[k], x); propagate(k, r - l); return data[k]; } else { return data[k] = f(update(a, b, x, 2 * k + 0, l, (l + r) >> 1), update(a, b, x, 2 * k + 1, (l + r) >> 1, r)); } } Monoid update(int a, int b, const OperatorMonoid &x) { return update(a, b, x, 1, 0, sz); } Monoid query(int a, int b, int k, int l, int r) { propagate(k, r - l); if(r <= a || b <= l) { return M1; } else if(a <= l && r <= b) { return data[k]; } else { return f(query(a, b, 2 * k + 0, l, (l + r) >> 1), query(a, b, 2 * k + 1, (l + r) >> 1, r)); } } Monoid query(int a, int b) { return query(a, b, 1, 0, sz); } Monoid operator[](const int &k) { return query(k, k + 1); } }; bool dp[55][3][100010]; string mymin(string s, string t){ reverse(all(t)); if(s == "") return t; if(s.size() > t.size()) return t; if(s.size() < t.size()) return s; for(int i=0; i<s.size(); i++){ if(s[i] == '+' && t[i] == '*') return s; if(s[i] == '*' && t[i] == '+') return t; } return s; } int main() { cin.tie(0); ios::sync_with_stdio(false); //cout << fixed << setprecision(15); int N; cin >> N; int total; cin >> total; vector<int> a(N); REP(i,N) cin >> a[i]; dp[0][0][a[0]] = true; dp[0][1][a[0]] = true; for(int i=1; i<N; i++){ for(int o=0; o<2; o++){ for(int j=0; j<=total; j++){ if(o == 0){ if(j-a[i]>=0){ dp[i][o][j] |= dp[i-1][0][j-a[i]]; dp[i][o][j] |= dp[i-1][1][j-a[i]]; } }else{ if(j%a[i] == 0){ dp[i][o][j] |= dp[i-1][0][j/a[i]]; dp[i][o][j] |= dp[i-1][1][j/a[i]]; } } } } } int nm = total; string ans = ""; queue<pair<string, int>> q; q.push({"", total}); while(q.size()){ pair<string, int> p = q.front(); q.pop(); if(p.first.size() == N-1){ ans = mymin(ans, p.first); continue; } int idx = N-p.first.size()-1; if(dp[idx][0][p.second] == true){ q.push(make_pair(p.first+"+", p.second-a[idx])); } if(dp[idx][1][p.second] == true){ q.push(make_pair(p.first+"*", p.second/a[idx])); } } cout << ans << endl; return 0; }