#1019741 (C++17) No.2927 Reverse Polish Equation

提出ソース

結果

問題	No.2927 Reverse Polish Equation
ユーザー	dyktr_06
提出日時	2024-10-15 16:34:26
言語	C++17 (gcc 12.3.0 + boost 1.83.0)
結果	AC
実行時間	309 ms / 2,000 ms
コード長	8,614 bytes
コンパイル時間	2,662 ms
コンパイル使用メモリ	211,924 KB
実行使用メモリ	15,720 KB
最終ジャッジ日時	2024-10-16 00:34:43
合計ジャッジ時間	8,128 ms
ジャッジサーバーID （参考情報）	judge1 / judge3

このコードへのチャレンジ
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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	2 ms 5,248 KB
testcase_02	AC	2 ms 5,248 KB
testcase_03	AC	2 ms 5,248 KB
testcase_04	AC	2 ms 5,248 KB
testcase_05	AC	2 ms 5,248 KB
testcase_06	AC	2 ms 5,248 KB
testcase_07	AC	3 ms 5,248 KB
testcase_08	AC	5 ms 5,248 KB
testcase_09	AC	3 ms 5,248 KB
testcase_10	AC	2 ms 5,248 KB
testcase_11	AC	4 ms 5,248 KB
testcase_12	AC	92 ms 6,784 KB
testcase_13	AC	155 ms 9,336 KB
testcase_14	AC	109 ms 7,296 KB
testcase_15	AC	149 ms 9,080 KB
testcase_16	AC	50 ms 5,248 KB
testcase_17	AC	202 ms 10,880 KB
testcase_18	AC	250 ms 12,864 KB
testcase_19	AC	17 ms 5,248 KB
testcase_20	AC	198 ms 10,752 KB
testcase_21	AC	309 ms 14,976 KB
testcase_22	AC	29 ms 5,248 KB
testcase_23	AC	2 ms 5,248 KB
testcase_24	AC	2 ms 5,248 KB
testcase_25	AC	2 ms 5,248 KB
testcase_26	AC	2 ms 5,248 KB
testcase_27	AC	267 ms 13,440 KB
testcase_28	AC	222 ms 11,756 KB
testcase_29	AC	29 ms 5,248 KB
testcase_30	AC	252 ms 12,928 KB
testcase_31	AC	19 ms 5,248 KB
testcase_32	AC	56 ms 5,376 KB
testcase_33	AC	107 ms 7,424 KB
testcase_34	AC	134 ms 8,320 KB
testcase_35	AC	2 ms 5,248 KB
testcase_36	AC	250 ms 12,960 KB
testcase_37	AC	83 ms 6,528 KB
testcase_38	AC	294 ms 14,720 KB
testcase_39	AC	119 ms 7,708 KB
testcase_40	AC	242 ms 12,808 KB
testcase_41	AC	200 ms 11,084 KB
testcase_42	AC	60 ms 15,720 KB
testcase_43	AC	125 ms 15,696 KB
testcase_44	AC	126 ms 15,708 KB
testcase_45	AC	61 ms 14,720 KB

権限があれば一括ダウンロードができます

ソースコード

raw source code

#include <bits/stdc++.h>

using namespace std;

#define overload4(_1, _2, _3, _4, name, ...) name
#define rep1(n) for(int i = 0; i < (int)(n); ++i)
#define rep2(i, n) for(int i = 0; i < (int)(n); ++i)
#define rep3(i, a, b) for(int i = (a); i < (int)(b); ++i)
#define rep4(i, a, b, c) for(int i = (a); i < (int)(b); i += (c))
#define rep(...) overload4(__VA_ARGS__, rep4, rep3, rep2, rep1)(__VA_ARGS__)

#define rrep(i,n) for(int i = (int)(n) - 1; i >= 0; --i)
#define ALL(a) (a).begin(), (a).end()
#define Sort(a) (sort((a).begin(), (a).end()))
#define RSort(a) (sort((a).rbegin(), (a).rend()))
#define UNIQUE(a) (a.erase(unique((a).begin(), (a).end()), (a).end()))

typedef long long int ll;
typedef unsigned long long ul;
typedef long double ld;
typedef vector<int> vi;
typedef vector<long long> vll;
typedef vector<char> vc;
typedef vector<string> vst;
typedef vector<double> vd;
typedef vector<long double> vld;
typedef pair<long long, long long> P;

template<class T> long long sum(const T &a){ return accumulate(a.begin(), a.end(), 0LL); }
template<class T> auto min(const T &a){ return *min_element(a.begin(), a.end()); }
template<class T> auto max(const T &a){ return *max_element(a.begin(), a.end()); }

const long long MINF = 0x7fffffffffff;
const long long INF = 0x1fffffffffffffff;
const long long MOD = 998244353;
const long double EPS = 1e-9;
const long double PI = acos(-1);

template<class T> inline bool chmax(T &a, T b) { if(a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T &a, T b) { if(a > b) { a = b; return 1; } return 0; }

template<typename T1, typename T2> istream &operator>>(istream &is, pair<T1, T2> &p){ is >> p.first >> p.second; return is; }
template<typename T1, typename T2> ostream &operator<<(ostream &os, const pair<T1, T2> &p){ os << "(" << p.first << ", " << p.second << ")"; return os; }
template<typename T> istream &operator>>(istream &is, vector<T> &v){ for(T &in : v) is >> in; return is; }
template<typename T> ostream &operator<<(ostream &os, const vector<T> &v){ for(int i = 0; i < (int) v.size(); ++i){ os << v[i] << (i + 1 != (int) v.size() ? " " : ""); } return os; }
template <typename T, typename S> ostream &operator<<(ostream &os, const map<T, S> &mp){ for(auto &[key, val] : mp){ os << key << ":" << val << " "; } return os; }
template <typename T> ostream &operator<<(ostream &os, const set<T> &st){ auto itr = st.begin(); for(int i = 0; i < (int) st.size(); ++i){ os << *itr << (i + 1 != (int) st.size() ? " " : ""); itr++; } return os; }
template <typename T> ostream &operator<<(ostream &os, const multiset<T> &st){ auto itr = st.begin(); for(int i = 0; i < (int) st.size(); ++i){ os << *itr << (i + 1 != (int) st.size() ? " " : ""); itr++; } return os; }
template <typename T> ostream &operator<<(ostream &os, queue<T> q){ while(q.size()){ os << q.front() << " "; q.pop(); } return os; }
template <typename T> ostream &operator<<(ostream &os, deque<T> q){ while(q.size()){ os << q.front() << " "; q.pop_front(); } return os; }
template <typename T> ostream &operator<<(ostream &os, stack<T> st){ while(st.size()){ os << st.top() << " "; st.pop(); } return os; }
template <class T, class Container, class Compare> ostream &operator<<(ostream &os, priority_queue<T, Container, Compare> pq){ while(pq.size()){ os << pq.top() << " "; pq.pop(); } return os; }

template <typename T>
long long binary_search(long long ok, long long ng, T check){
    while(abs(ok - ng) > 1){
        long long mid = (ok + ng) / 2;
        if(check(mid)) ok = mid;
        else ng = mid;
    }
    return ok;
}

template <typename T>
long double binary_search_real(long double ok, long double ng, T check, int iter = 100){
    for(int i = 0; i < iter; ++i){
        long double mid = (ok + ng) / 2;
        if(check(mid)) ok = mid;
        else ng = mid;
    }
    return ok;
}

template <typename T>
long long trisum(T a, T b){
    long long res = ((b - a + 1) * (a + b)) / 2;
    return res;
}

template <typename T>
T intpow(T x, int n){
    T ret = 1;
    while(n > 0) {
        if(n & 1) (ret *= x);
        (x *= x);
        n >>= 1;
    }
    return ret;
}

template <typename T>
T getReminder(T a, T b){
    if(b == 0) return -1;
    if(a >= 0 && b > 0){
        return a % b;
    } else if(a < 0 && b > 0){
        return ((a % b) + b) % b;
    } else if(a >= 0 && b < 0){
        return a % b;
    } else{
        return (abs(b) - abs(a % b)) % b;
    }
}

template<class T, class U> inline T vin(T &vec, U n) { vec.resize(n); for(int i = 0; i < (int) n; ++i) cin >> vec[i]; return vec; }
template<class T> inline void vout(T vec, string s = "\n"){ for(auto x : vec) cout << x << s; }
template<class... T> void in(T&... a){ (cin >> ... >> a); }
void out(){ cout << '\n'; }
template<class T, class... Ts> void out(const T &a, const Ts&... b){ cout << a; (cout << ... << (cout << ' ', b)); cout << '\n'; }
template<class T, class U> void inGraph(vector<vector<T>> &G, U n, U m, bool directed = false){ G.resize(n); for(int i = 0; i < m; ++i){ int a, b; cin >> a >> b; a--, b--; G[a].push_back(b); if(!directed) G[b].push_back(a); } }

template <typename T>
struct BinaryIndexedTree{
    int N;
    vector<T> BIT;
    BinaryIndexedTree(const int &N) : N(N), BIT(N + 1, 0){
    }

    T get(int i){
        return sum(i + 1) - sum(i);
    }

    void add(int i, T x){
        i++;
        while(i <= N){
            BIT[i] += x;
            i += i & -i;
        }
    }

    T sum(int i) const {
        T ans = 0;
        while(i > 0){
            ans += BIT[i];
            i -= i & -i;
        }
        return ans;
    }

    T sum(int L, int R) const {
        return sum(R) - sum(L);
    }

    int lower_bound(T x) const {
        if(x <= 0){
            return 0;
        } else{
            int v = 0, r = 1;
            while(r < N) r = r << 1;
            for(int len = r; len > 0; len = len >> 1){
                if(v + len < N && BIT[v + len] < x){
                    x -= BIT[v + len];
                    v += len;
                }
            }
            return v;
        }
    }

    int upper_bound(T x) const {
        if(x < 0){
            return 0;
        } else{
            int v = 0, r = 1;
            while(r <= N) r = r << 1;
            for(int len = r; len > 0; len = len >> 1){
                if(v + len <= N && BIT[v + len] <= x){
                    x -= BIT[v + len];
                    v += len;
                }
            }
            return v;
        }
    }

    T operator [](int i) const {
        return sum(i, i + 1);
    }
};

ll T;

void input(){
    in(T);
}

using i128 = __int128_t;

void solve(){
    ll q, y; in(q, y);
    vst s; vin(s, q);
    auto fx = [&](i128 x){
        vector<i128> a;
        rep(i, q){
            if(s[i][0] == 'X'){
                a.push_back(x);
            }else if('0' <= s[i][0] && s[i][0] <= '9'){
                a.push_back(stoll(s[i]));
            }else if(s[i][0] == '+'){
                i128 y = a.back(); a.pop_back();
                i128 z = a.back(); a.pop_back();
                a.push_back(y + z);
            }else if(s[i] == "min"){
                i128 y = a.back(); a.pop_back();
                i128 z = a.back(); a.pop_back();
                a.push_back(min(y, z));
            }else{
                i128 y = a.back(); a.pop_back();
                i128 z = a.back(); a.pop_back();
                a.push_back(max(y, z));
            }
        }
        return a[0] >= y;
    };
    auto fv = [&](i128 x){
        vector<i128> a;
        rep(i, q){
            if(s[i][0] == 'X'){
                a.push_back(x);
            }else if('0' <= s[i][0] && s[i][0] <= '9'){
                a.push_back(stoll(s[i]));
            }else if(s[i][0] == '+'){
                i128 y = a.back(); a.pop_back();
                i128 z = a.back(); a.pop_back();
                a.push_back(y + z);
            }else if(s[i] == "min"){
                i128 y = a.back(); a.pop_back();
                i128 z = a.back(); a.pop_back();
                a.push_back(min(y, z));
            }else{
                i128 y = a.back(); a.pop_back();
                i128 z = a.back(); a.pop_back();
                a.push_back(max(y, z));
            }
        }
        return a[0];
    };
    ll init = 1e15;
    ll ans = binary_search(init, -1, fx);
    if(ans == init){
        out(-1);
        return;
    }
    if(fv(ans) == y){
        out(ans);
    }else{
        out(-1);
    }
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout << fixed << setprecision(20);

    T = 1;
    // input();
    while(T--) solve();
}

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結果

テストケース

ソースコード