4-100内验证哥德巴赫猜想，输出每一个偶数拆分的所有可能性

Question

Answer 1

#include<iostream>
#include<cmath>
using namespace std;
bool sushu(int x)
{
    int i = 2;
    while(i <= floor(sqrt(x)) && (x % i != 0))
    {
        i++;
    }
    if(i > floor(sqrt(x)))
    {
        return 1;
    }
    return 0;
}
int main()
{
    int x;
    int i;
    for(x = 4; x <= 100; x += 2)
    {
        for(i = 2; i <= x / 2; i++)
        {
            if(sushu(i) && sushu(x - i))
            {
                cout << x << "=" << i << "+" << x - i << endl;
                break;
            }
        }
    }
    return 0;
}