Language: C++

// {{{ by unolight
#include <bits/stdc++.h>
#include <unistd.h>
#pragma GCC diagnostic ignored "-Wunused-result"
#pragma GCC diagnostic ignored "-Wunused-function"
#define SZ(x) ((int)(x).size())
#define ALL(x) begin(x),end(x)
#define RALL(x) rbegin(x),rend(x)
#define REP(i,n) for ( int i=0; i<int(n); i++ )
#define REP1(i,a,b) for ( int i=(a); i<=int(b); i++ )
#define MP make_pair
#define PB push_back
using namespace std;
typedef int64_t LL;
typedef pair<int,int> PII;
typedef vector<int> VI;

namespace { namespace unolight {
// Read Input
template<class T> void _R( T &x ) { cin>>x; }
void _R( int &x ) { scanf("%d",&x); }
void _R( int64_t &x ) { scanf("%" PRId64,&x); }
void _R( double &x ) { scanf("%lf",&x); }
void _R( char &x ) { scanf(" %c",&x); }
void _R( char *x ) { scanf("%s",x); }
void R() {}
template<class T, class... U> void R( T& head, U&... tail ) { _R(head); R(tail...); }
// Write Output
template<class T> void _W( const T &x ) { cout<<x; }
void _W( const int &x ) { printf("%d",x); }
void _W( const int64_t &x ) { printf("%" PRId64,x); }
void _W( const double &x ) { printf("%.16f\n",x); }
void _W( const char &x ) { putchar(x); }
void _W( const char *x ) { printf("%s",x); }
template<class T> void _W( const vector<T> &x ) { for (auto i = x.begin(); i != x.end(); _W(*i++)) if (i != x.cbegin()) putchar(' '); }
void W() {}
template<class T, class... U> void W( const T& head, const U&... tail ) { _W(head); putchar(sizeof...(tail)?' ':'\n'); W(tail...); }

#ifdef UNOLIGHT
#include "dump.hpp"
#else
#define dump(...)
#endif

template<class T> inline bool chmax( T &a, const T &b ) { return b>a ? a=b,true : false; }
template<class T> inline bool chmin( T &a, const T &b ) { return b<a ? a=b,true : false; }
template<class T> using MaxHeap = priority_queue<T>;
template<class T> using MinHeap = priority_queue<T, vector<T>, greater<T>>;
template<class T, class F=less<T>> void sort_uniq( vector<T> &v, F f=F() ) {
    sort(begin(v),end(v),f);
    v.resize(unique(begin(v),end(v))-begin(v));
}
// }}}
struct Sieve {
    int n;
    vector<bool> b;
    vector<int> primes;
    Sieve(int n=1):n(n), b(n+1, true) {
        b[0] = b[1] = false;
        for(long long i=2; i*i<=n; i++) {
            if(!b[i]) continue;
            primes.push_back(i);
            for(long long j=i*i; j<=n; j+=i) b[j]=false;
        }
    }

    bool isPrime(int x) { return b[x]; }

    map<int,int> primeFactors(int x) {
        map<int,int> res;
        for(auto i:primes) {
            while(x % i == 0) {
                res[i]++;
                x /= i;
            }
        }
        if(x>1) res[i]++;
        return res;
    }
};
const int N=1000010;
void main() {
    int n;
    R(n);
    map<int,int> mp;
    Sieve s(N);
    REP(i,n) {
        int a;
        R(a);
        auto m=s.primeFactors(a);
        for ( auto &it:m ) mp[it.first]++;
    }
    int ok1=1,ok2=1;
    for ( auto &it:mp ) {
        if ( it.second>1 ) ok1=0;
        if ( it.second==n ) ok2=0;
    }
    if ( ok1 ) {
        W("pairwise coprime");
    } else if ( ok2 ) {
        W("setwise coprime");
    } else {
        W("not coprime"); 
    }
}

}} // {{{ main
int main() { unolight::main(); return 0; }
// }}}


Compiler output:
a.cc: In member function 'std::map<int, int> {anonymous}::unolight::Sieve::primeFactors(int)':
a.cc:77:21: error: 'i' was not declared in this scope
   77 |         if(x>1) res[i]++;
      |                     ^