Language: C++

#include "bits/stdc++.h"
using namespace std;
#define sim template < class c
#define ris return * this
#define dor > debug & operator <<
#define eni(x) sim > typename \
enable_if<sizeof dud<c>(0) x 1, debug&>::type operator<<(c i) {
sim > struct rge { c b, e; };
sim > rge<c> range(c i, c j) { return rge<c>{i, j}; }
sim > auto dud(c* x) -> decltype(cerr << *x, 0);
sim > char dud(...);
struct debug {
#ifdef LOCAL
~debug() { cerr << endl; }
eni(!=) cerr << boolalpha << i; ris; }
eni(==) ris << range(begin(i), end(i)); }
sim, class b dor(pair < b, c > d) {
ris << "(" << d.first << ", " << d.second << ")";
}
sim dor(rge<c> d) {
*this << "[";
for (auto it = d.b; it != d.e; ++it)
*this << ", " + 2 * (it == d.b) << *it;
ris << "]";
}
#else
sim dor(const c&) { ris; }
#endif
};
#define imie(...) " [" << #__VA_ARGS__ ": " << (__VA_ARGS__) << "] "
#define cool ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define int  long long int
#define pb push_back
#define fe first
#define lb lower_bound 
#define ub upper_bound
#define pii pair<pair<int,int>,pair<int,int> >
#define se second
#define endl "\n"
#define pi pair<int, int>
#define mi          map<int,int>
#define mii         map<pi,int>
#define vi vector<int> 
#define vvi vector<vi>
#define bs   binary_search
#define rep(i,a,b) for(int i=a;i<b;i++)
#define rep1(i,a,b) for(int i=a;i<=b;i++)	
#define all(c) (c).begin(),(c).end()
#define sz(x)       (int)x.size() 
#define PI 3.14159265358979323846

 const int N=1e6+5;

 int mod= 1e9+7;
 int dx[4]={0,0,+1,-1};
 int dy[4]={+1,-1,0,0};  
 
 
int po(int a, int b) {
	a %= mod;
	int res = 1;
	while (b > 0) {
		if (b & 1)
			res = (res * a) % mod;
		a =(a*a) % mod;
		b >>= 1;
	}
	 return res;	
  }
  
  
int n,spf[N],vis[N]; 
mi mp; 

void cal_spf() {	  
	  spf[1]=1;
	  for(int i=2;i<N;i++) 
	     spf[i]=i;
	  for(int i=4;i<N;i+=2)
	     spf[i]=2;
	  
	  for(int i=3;i*i<N;i++) {
		    if(spf[i]==i) {
				   for(int j=i*i;j<N;j+=i) {
					      if(spf[j]==j) {
							    spf[j]=i;
							  
					   }
				}
		  }        
	}

void  get_fn(int x) {	  
	 
	  memset(vis,-1,sizeof(vis));
	  while(x!=1)  {
		    if(vis[spf[x]]==-1) {
				  vis[spf[x]]=1;
				  mp[spf[x]]++;
				}
		    x/=spf[x]; 
		  }
	} 	
  	
void solve() {
  cin>>n;
  vi a(n,0);
  rep(i,0,n) {
	    cin>>a[i];
	  }
  //~ sort(all(a));
  
  rep(i,0,n) {
	     get_fn(a[i]);
	  }
  
  int f=0;
  for(auto to:mp) {
	    if(to.se > 1) {
			  f=1;
			  break;
			}
	  }
  if(!f) {
	     cout<<"pairwise coprime\n";
	     return;
	  }
  int g=0;
  rep(i,0,n) {
	     g=__gcd(g,a[i]);
	  }	  
	  
	  if(g==1) {
		     cout<<"setwise coprime\n";
		     return;
		  }
	  
	  cout<<"not coprime\n";                          
}

    
int32_t main() {
	cool;
	int t=1;	
    
    cal_spf();
	//cin>>t;
	while(t--)
	  solve();

  return 0;	   
}


Compiler output:
a.cc: In function 'void cal_spf()':
a.cc:93:21: error: a function-definition is not allowed here before '{' token
   93 | void  get_fn(int x) {
      |                     ^
a.cc:105:14: error: a function-definition is not allowed here before '{' token
  105 | void solve() {
      |              ^
a.cc:142:13: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
  142 | int32_t main() {
      |             ^~
a.cc:142:13: note: remove parentheses to default-initialize a variable
  142 | int32_t main() {
      |             ^~
      |             --
a.cc:142:13: note: or replace parentheses with braces to value-initialize a variable
a.cc:142:16: error: a function-definition is not allowed here before '{' token
  142 | int32_t main() {
      |                ^
a.cc:152:2: error: expected '}' at end of input
  152 | }
      |  ^
a.cc:75:16: note: to match this '{'
   75 | void cal_spf() {
      |                ^