結果

問題 No.1361 [Zelkova 4th Tune *] QUADRUPLE-SEQUENCEの詩
ユーザー firiexp
提出日時 2021-01-23 00:08:17
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 377 ms / 2,000 ms
コード長 3,481 bytes
コンパイル時間 1,969 ms
コンパイル使用メモリ 109,336 KB
最終ジャッジ日時 2025-01-18 06:47:45
ジャッジサーバーID
（参考情報） 		judge1 / judge2
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ファイルパターン 結果
other AC * 74
権限があれば一括ダウンロードができます
コンパイルメッセージ
main.cpp: In function ‘int main()’:
main.cpp:24:29: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   24 |     for (auto &&i : A) scanf("%d", &i);
      |                        ~~~~~^~~~~~~~~~
main.cpp:25:29: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   25 |     for (auto &&i : B) scanf("%d", &i);
      |                        ~~~~~^~~~~~~~~~
main.cpp:26:29: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   26 |     for (auto &&i : C) scanf("%d", &i);
      |                        ~~~~~^~~~~~~~~~
main.cpp:27:29: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   27 |     for (auto &&i : D) scanf("%d", &i);
      |                        ~~~~~^~~~~~~~~~

ソースコード

diff # 

#include <iostream>
#include <algorithm>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <numeric>
#include <bitset>
#include <cmath>

static const int MOD = 1000000007;
using ll = long long;
using u32 = unsigned;
using u64 = unsigned long long;
using namespace std;

template<class T> constexpr T INF = ::numeric_limits<T>::max() / 32 * 15 + 208;

int main() {
    int a, b, c, d;
    ll s;
    cin >> a >> b >> c >> d >> s;
    vector<int> A(a), B(b), C(c), D(d);
    for (auto &&i : A) scanf("%d", &i);
    for (auto &&i : B) scanf("%d", &i);
    for (auto &&i : C) scanf("%d", &i);
    for (auto &&i : D) scanf("%d", &i);
    vector<ll> vp, up, vm, um;
    for (int i = 0; i < a; ++i) {
        for (int j = 0; j < b; ++j) {
            if(A[i]*B[j] >= 0) vp.emplace_back(A[i] * B[j]);
            else vm.emplace_back(A[i] * B[j]);
        }
    }
    for (int i = 0; i < c; ++i) {
        for (int j = 0; j < d; ++j) {
            if(C[i]*D[j] >= 0) up.emplace_back(C[i] * D[j]);
            else um.emplace_back(C[i] * D[j]);
        }
    }
    sort(vp.begin(),vp.end());
    sort(vm.begin(),vm.end());
    sort(up.begin(),up.end());
    sort(um.begin(),um.end());
    ll ok = INF<ll>, ng = -INF<ll>;
    while(ok-ng > 1){
        ll mid = (ok+ng)/2;
        if([&](ll x) -> bool{ // count v[i]*u[j] <= x
            ll cnt = 0;
            if(x >= 0){
                cnt += (ll)vp.size()*um.size()+(ll)up.size()*vm.size();
                int cur = 0;
                for (int i = (int)vp.size()-1; i >= 0; --i) { // v >= 0, u >= 0
                    while(cur < up.size() && up[cur]*vp[i] <= x) cur++;
                    cnt += cur;
                }
                cur = um.size();
                for (int i = 0; i < vm.size(); ++i) {
                    while(cur > 0 && vm[i]*um[cur-1] <= x) cur--;
                    cnt += um.size()-cur;
                }
            }else {
                int cur = vp.size();
                for (int i = (int)um.size()-1; i >= 0; --i) {
                    while(cur > 0 && vp[cur-1]*um[i] <= x) cur--;
                    cnt += vp.size()-cur;
                }
                cur = up.size();
                for (int i = (int)vm.size()-1; i >= 0; --i) {
                    while(cur > 0 && up[cur-1]*vm[i] <= x) cur--;
                    cnt += up.size()-cur;
                }
            }
            return cnt >= s;
        }(mid)) ok = mid;
        else ng = mid;
    }
    cout << ok << "\n";

    // 復元いる？
    ll ab = 0, cd = 0;
    for (auto &&i : vp) vm.emplace_back(i);
    for (auto &&i : up) um.emplace_back(i);
    if(ok == 0){
        for (auto &&i : vm) {
            if(i == 0) ab = 0, cd = um[0];
        }
        for (auto &&i : um) {
            if(i == 0) ab = vm[0], cd = 0;
        }
    }else {
        for (auto &&i : vm) {
            if(i == 0 || ok%i) continue;
            auto x = lower_bound(um.begin(),um.end(), ok/i);
            if(x != um.end() && *x == ok/i) ab = i, cd = ok/i;
        }
    }
    for (int i = 0; i < a; ++i) {
        for (int j = 0; j < b; ++j) {
            if(A[i]*B[j] == ab){
                cout << A[i] << " " << B[j] << " ";
                i = a; j = b;
            }
        }
    }
    for (int i = 0; i < c; ++i) {
        for (int j = 0; j < d; ++j) {
            if(C[i]*D[j] == cd){
                cout << C[i] << " " << D[j] << "\n";
                i = c; j = d;
            }
        }
    }
    return 0;
}
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