一个WA，好几个RE，得了50分，大佬求改

#include<iostream>
#include<cmath>
#include<cstring>
#include<string>
#include<vector>
#include<algorithm>
#define prime p
using namespace std;
bool prime(int x){
    for(int i=2;i<x;++i){
        if(x%i==0)return 0;
    }return 1;
}
int main(){
    int n,m;
    cin>>n>>m;
    int s[100]={};
    int s_size=0;
    for(int i=n;i<m;++i){
        string rev;
        rev=to_string(i);
        reverse(rev.begin(),rev.end());
        int irev=stoi(rev);
        if(p(irev)&&p(i)){
            s[s_size]=i;
            s_size++;
        }
    }
    for(int i=0;i<s_size-1;++i){
        cout<<s[i]<<',';
    }cout<<s[s_size-1];
    return 0;
}//to_string stoi```