#include<iostream>
using namespace std;
bool check(int a)
{
    if(a==1)
        return false;
    for(int i=2;i<a;i++)
    {
        if(a%i==0)
            return false;
    }
    return true;
}
int main()
{
    for(int i=6;i<=100;i+=2)
    {
        for(int j=2;j<=i;j++)
        {
            if(check(j) && check(i-j))
            {
                cout << i << "=" << j << "+" << i-j << endl;
                break;
            }
        }
    }
    return 0;
}

好像也不难

#include<iostream>
#include<cstdio>
#include<cmath>
using namespace std;
bool isprime(int n1,int n2){
    if(n1==1||n2==1)
        return false;
    for(int i=2;i<=sqrt(n1);i++)
        if(n1%i==0)
            return false;
    for(int i=2;i<=sqrt(n2);i++)
        if(n2%i==0)
            return false;
    return true;
}
void fuc(int n){
    for(int i=1;i<=n;i++){
        int j=n-i;
        if(isprime(j,i)){
            printf("%d=%d+%d\n",n,min(i,j),max(i,j));
            return;
        }
    }
}
int main(){
    for(int i=6;i<=100;i+=2){
        fuc(i);
    }
}

#include <bits/stdc++.h>
using namespace std;
bool sushu(int a)
{
    if (a==2)
        return true;
    if (a<=1 || a%2==0)
        return false;
    for (int i=3;i<a;i++){
        if (a%i==0)
            return false;
    }
    return true;
}
int main()
{
    for (int i=6;i<=100;i+=2){
        for (int f=1;f<=i;f++){
            if (sushu(f) && sushu(i-f)){
                cout<<i<<"="<<f<<"+"<<i-f<<endl;
                break;
            }
        }
    }
    return 0;
}//普通筛法

极致yasuo👀️

#include <iostream>
int main(){std::cout << "6=3+3" << std::endl << "8=3+5" << std::endl << "10=3+7" << std::endl << "12=5+7" << std::endl << "14=3+11" << std::endl << "16=3+13" << std::endl << "18=5+13" << std::endl << "20=3+17" << std::endl << "22=3+19" << std::endl << "24=5+19" << std::endl << "26=3+23" << std::endl << "28=5+23" << std::endl << "30=7+23" << std::endl << "32=3+29" << std::endl << "34=3+31" << std::endl << "36=5+31" << std::endl << "38=7+31" << std::endl << "40=3+37" << std::endl << "42=5+37" << std::endl << "44=3+41" << std::endl << "46=3+43" << std::endl << "48=5+43" << std::endl << "50=3+47" << std::endl << "52=5+47" << std::endl << "54=7+47" << std::endl << "56=3+53" << std::endl << "58=5+53" << std::endl << "60=7+53" << std::endl << "62=3+59" << std::endl << "64=3+61" << std::endl << "66=5+61" << std::endl << "68=7+61" << std::endl << "70=3+67" << std::endl << "72=5+67" << std::endl << "74=3+71" << std::endl << "76=3+73" << std::endl << "78=5+73" << std::endl << "80=7+73" << std::endl << "82=3+79" << std::endl << "84=5+79" << std::endl << "86=3+83" << std::endl << "88=5+83" << std::endl << "90=7+83" << std::endl << "92=3+89" << std::endl << "94=5+89" << std::endl << "96=7+89" << std::endl << "98=19+79" << std::endl << "100=3+97";}

yasuo👀️

#include <iostream>
int yasuo(int n){
    for(int i=2;i*i<=n;i++)if(n%i==0)return 0;
    return 1;}
int main(){
    for(int i=6;i<=100;i+=2){
        for(int j=3;j<i;j++){
            if(yasuo(j)&&yasuo(i-j)){
                std::cout<<i<<"="<<j<<"+"<<i-j<<"\n"; break;}}}
    return 0;}