std::random_device rd; std::mt19937 g(rd()); std::shuffle(v.begin(), v.end(), g); n4190删除auto_ptr、random_shuffle() 和旧的东西 … 三、什么必须死 D.12 “随机洗牌” [depr.alg.random.shuffle] 这定义了 random_shuffle(first, last) 和 random_shuffle(first, last, rng)。 (后...
#include <algorithm>#include <cassert>#include <iostream>#include <iterator>#include <random>#include <string>intmain(){std::random_devicerd;std::mt19937g(rd());constintN=6;intnums[N]={3,1,4,1,5,9};constintmin_sorted_size=4;for(intsorted_size=0;sorted_size<min_sorted_size;){...
#include <algorithm>#include <iostream>#include <iterator>#include <random>#include <vector>intmain(){std::vector<int>v{1,2,3,4,5,6,7,8,9,10};std::random_devicerd;std::mt19937g(rd());std::shuffle(v.begin(), v.end(), g);std::copy(v.begin(), v.end(),std::ostream_ite...
2, 3, 4, 5};std::random_device rd; // 随机数设备 (Random device)std::mt19937 g(rd()); // 使用Mersenne Twister算法生成随机数std::shuffle(numbers.begin(), numbers.end(), g);
#include<random>#include<algorithm>#include<iterator>#include<iostream>intmain(){std::vector<int>v={1,2,3,4,5,6,7,8,9,10};std::random_device rd;std::mt19937g(rd());std::shuffle(v.begin(),v.end(),g);std::copy(v.begin(),v.end(),std::ostream_iterator<int>(std::cout,"...
Example Produce random numbers with 10 bits of randomness: this may produce onlyk*Rdistinct values. Run this code #include <iostream>#include <random>intmain(){std::random_devicerd;std::mt19937gen(rd());for(intn=0;n<10;++n)std::cout<<std::generate_canonical<double,10>(gen)<<' '...
问题是从std::mt19937(std::uint_fast32_t)的共域映射到float；如果当前的IEEE754舍入模式不是舍入...
#include <random> #include <iostream> int main() { std::random_device rd; std::mt19937 gen(rd()); for(int n = 0; n < 10; ++n) { std::cout << std::generate_canonical<double, 10>(gen) << ' '; } } 可能的输出: 0.208143 0.824147 0.0278604 0.343183 0.0173263 0.864057 0.64703...
#include <iostream> #include <algorithm> #include <iterator> #include <random> int main() { std::random_device rd; std::mt19937 g(rd()); const int N = 6; int nums[N] = {3, 1, 4, 1, 5, 9}; const int min_sorted_size = 4; int sorted_size = 0; do { std::shuffle(...
//random_device rd; std::mt19937_64 dist(1234); // generate some random unsigned integers: printf("\nTesting with %zu random unsigned integers...\n\n", testSize); vector<unsigned> uints(testSize); for (auto& d : uints) { //d = static_cast<unsign...