#860420 (C++17) No.702 中央値を求めよ LIMITED

• 問題: No.702 中央値を求めよ LIMITED
• ユーザー: snrnsidy
• 提出日時: 2023-04-17 12:01:23
• 言語: C++17 (gcc 12.3.0 + boost 1.83.0)
• 結果: AC
• 実行時間: 679 ms / 5,000 ms
• コード長: 2,681 bytes
• コンパイル時間: 3,062 ms
• コンパイル使用メモリ: 350,760 KB
• 実行使用メモリ: 5,248 KB
• 最終ジャッジ日時: 2024-10-12 13:35:19
• 合計ジャッジ時間: 22,303 ms
• ジャッジサーバーID （参考情報）: judge4 / judge2

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	653 ms; 5,248 KB
testcase_01	AC	653 ms; 5,248 KB
testcase_02	AC	653 ms; 5,248 KB
testcase_03	AC	653 ms; 5,248 KB
testcase_04	AC	652 ms; 5,248 KB
testcase_05	AC	653 ms; 5,248 KB
testcase_06	AC	675 ms; 5,248 KB
testcase_07	AC	653 ms; 5,248 KB
testcase_08	AC	652 ms; 5,248 KB
testcase_09	AC	654 ms; 5,248 KB
testcase_10	AC	653 ms; 5,248 KB
testcase_11	AC	651 ms; 5,248 KB
testcase_12	AC	651 ms; 5,248 KB
testcase_13	AC	652 ms; 5,248 KB
testcase_14	AC	653 ms; 5,248 KB
testcase_15	AC	653 ms; 5,248 KB
testcase_16	AC	653 ms; 5,248 KB
testcase_17	AC	651 ms; 5,248 KB
testcase_18	AC	652 ms; 5,248 KB
testcase_19	AC	672 ms; 5,248 KB
testcase_20	AC	652 ms; 5,248 KB
testcase_21	AC	679 ms; 5,248 KB
testcase_22	AC	655 ms; 5,248 KB
testcase_23	AC	652 ms; 5,248 KB
testcase_24	AC	652 ms; 5,248 KB
testcase_25	AC	652 ms; 5,248 KB
testcase_26	AC	652 ms; 5,248 KB

ソースコード

#pragma GCC optimize("O3")
#pragma GCC optimize(2)
#pragma GCC optimize(3)
#pragma GCC optimize("Ofast")
#pragma GCC optimize("inline")
#pragma GCC optimize("-fgcse")
#pragma GCC optimize("-fgcse-lm")
#pragma GCC optimize("-fipa-sra")
#pragma GCC optimize("-ftree-pre")
#pragma GCC optimize("-ftree-vrp")
#pragma GCC optimize("-fpeephole2")
#pragma GCC optimize("-ffast-math")
#pragma GCC optimize("-fsched-spec")
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("-falign-jumps")
#pragma GCC optimize("-falign-loops")	
#pragma GCC optimize("-falign-labels")
#pragma GCC optimize("-fdevirtualize")
#pragma GCC optimize("-fcaller-saves")
#pragma GCC optimize("-fcrossjumping") 
#pragma GCC optimize("-fthread-jumps")
#pragma GCC optimize("-funroll-loops")
#pragma GCC optimize("-freorder-blocks")
#pragma GCC optimize("-fschedule-insns")
#pragma GCC optimize("inline-functions")
#pragma GCC optimize("-ftree-tail-merge")
#pragma GCC optimize("-fschedule-insns2")
#pragma GCC optimize("-fstrict-aliasing")
#pragma GCC optimize("-falign-functions")
#pragma GCC optimize("-fcse-follow-jumps")
#pragma GCC optimize("-fsched-interblock")
#pragma GCC optimize("-fpartial-inlining")
#pragma GCC optimize("no-stack-protector")
#pragma GCC optimize("-freorder-functions")
#pragma GCC optimize("-findirect-inlining")
#pragma GCC optimize("-fhoist-adjacent-loads")
#pragma GCC optimize("-frerun-cse-after-loop")
#pragma GCC optimize("inline-small-functions")
#pragma GCC optimize("-finline-small-functions")
#pragma GCC optimize("-ftree-switch-conversion")
#pragma GCC optimize("-foptimize-sibling-calls")
#pragma GCC optimize("-fexpensive-optimizations")
#pragma GCC optimize("inline-functions-called-once")
#pragma GCC optimize("-fdelete-null-pointer-checks")
#pragma GCC optimize("Ofast")
//#pragma GCC target("avx,avx2,fma") 
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native") 
//#pragma GCC optimization ("unroll-loops")

#include <bits/stdc++.h>

using namespace std;

uint32_t x = 0, y = 1, z = 2, w = 3;
uint32_t generate() {
    uint32_t t = (x^(x<<11));
    x = y;
    y = z;
    z = w;
    w = (w ^ (w >> 19)) ^ (t ^ (t >> 8));
    return w;
}

int main(void)
{
	cin.tie(0);
	ios::sync_with_stdio(false);

	int64_t seed; 
	cin >> seed;
    
	__int64_t lo = 0;
	__int64_t hi = 1e10;
	__int64_t res = 0;

	while(lo<=hi)
	{
		__int64_t mid = (lo + hi)/2;
		int cnt = 0;
		x = seed;
		y = 1;
		z = 2;
		w = 3;

		for(int i=0;i<10000001;i++)
		{
			uint32_t val = generate();
			if(val <= mid) cnt++;
		}

		if(cnt <= 5000000)
		{
			res = max(res,mid);
			lo = mid + 1;
		}
		else
		{
			hi = mid - 1;
		}
	}

	cout << res + 1 << '\n';

	return 0;
}