#include <iostream>
#include <chrono>
#include <random>

int num=100000;

void pros(int *ab){
    volatile int c=0;
    auto start = std::chrono::high_resolution_clock::now();
    
    for(int i=0;i<num;i++){
        if(ab[i]&1){
            c++;
        }
    }
    
    auto end = std::chrono::high_resolution_clock::now();
    auto diff = std::chrono::duration_cast<std::chrono::nanoseconds>(end - start);
    std::cout << "c=" << c << ". " << diff.count() << " ナノ秒\n";
}

int main() {
    std::random_device rd;   // シード生成
    std::mt19937 gen(rd());  // メルセンヌ・ツイスタ
    std::uniform_int_distribution<> dist(1, 100);

    
    int a[num],b[num];
    for(int i=0;i<num;i++){
        a[i] = i;
    }
    for(int i=0;i<num;i++){
        b[i] = dist(gen);
    }
    pros(a);
    pros(a);
    pros(a);
    pros(a);
    pros(b);
    pros(b);
    pros(b);
    pros(b);

}