結果

問題 No.702 中央値を求めよ LIMITED
コンテスト
ユーザー face4
提出日時 2018-11-17 21:38:30
言語 C++14
(gcc 13.3.0 + boost 1.87.0)
結果
CE  
(最新)
AC  
(最初)
実行時間 -
コード長 797 bytes
コンパイル時間 580 ms
コンパイル使用メモリ 52,744 KB
最終ジャッジ日時 2025-01-02 00:49:55
合計ジャッジ時間 922 ms
ジャッジサーバーID
（参考情報） 		judge5 / judge4
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コンパイルエラー時のメッセージ・ソースコードは、提出者また管理者しか表示できないようにしております。（リジャッジ後のコンパイルエラーは公開されます）
ただし、clay言語の場合は開発者のデバッグのため、公開されます。

コンパイルメッセージ
main.cpp:5:1: error: ‘uint32_t’ does not name a type
    5 | uint32_t x = 0, y = 1, z = 2, w = 3;
      | ^~~~~~~~
main.cpp:3:1: note: ‘uint32_t’ is defined in header ‘<cstdint>’; did you forget to ‘#include <cstdint>’?
    2 | #include<climits>
  +++ |+#include <cstdint>
    3 | using namespace std;
main.cpp: In function ‘void init()’:
main.cpp:9:5: error: ‘x’ was not declared in this scope
    9 |     x = 0, y = 1, z = 2, w = 3;
      |     ^
main.cpp:9:12: error: ‘y’ was not declared in this scope
    9 |     x = 0, y = 1, z = 2, w = 3;
      |            ^
main.cpp:9:19: error: ‘z’ was not declared in this scope
    9 |     x = 0, y = 1, z = 2, w = 3;
      |                   ^
main.cpp:9:26: error: ‘w’ was not declared in this scope
    9 |     x = 0, y = 1, z = 2, w = 3;
      |                          ^
main.cpp: At global scope:
main.cpp:13:1: error: ‘uint32_t’ does not name a type
   13 | uint32_t generate() {
      | ^~~~~~~~
main.cpp:13:1: note: ‘uint32_t’ is defined in header ‘<cstdint>’; did you forget to ‘#include <cstdint>’?
main.cpp:22:12: error: ‘uint32_t’ was not declared in this scope
   22 | bool check(uint32_t mid){
      |            ^~~~~~~~
main.cpp:22:12: note: ‘uint32_t’ is defined in header ‘<cstdint>’; did you forget to ‘#include <cstdint>’?
main.cpp: In function ‘int main()’:
main.cpp:40:5: error: ‘uint32_t’ was not declared in this scope
   40 |     uint32_t l = 0, r = UINT_MAX;
      |     ^~~~~~~~
main.cpp:40:5: note: ‘uint32_t’ is defined in header ‘<cstdint>’; did you forget to ‘#include <cstdint>’?
main.cpp:42:11: error: ‘r’ was not declared in this scope
   42 |     while(r != l){
      |           ^
main.cpp:42:16: error: ‘l’ was not declared in this scope; did you mean ‘ll’?
   42 |     while(r != l){
      |                ^
      |                ll
main.cpp:43:17: error: expected ‘;’ before ‘mid’
   43 |         uint3

ソースコード

diff # 

#include<iostream>
#include<climits>
using namespace std;

uint32_t x = 0, y = 1, z = 2, w = 3;
int64_t seed;

void init(){
    x = 0, y = 1, z = 2, w = 3;
    x = seed;
}

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

bool check(uint32_t mid){
    int cnt = 0;
    init();
    uint32_t tmp;

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

    return cnt >= 5000001;
}

typedef long long ll;

int main(){
    cin >> seed;

    uint32_t l = 0, r = UINT_MAX;

    while(r != l){
        uint32_t mid = l + (r-l)/2;
        if(check(mid))      r = mid;
        else                l = mid+1;
    }

    cout << l << endl;
    
    return 0;
}
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