Language: C++

/*************************************************************************
    > File Name: solve.cpp
    > Author: XeroxAuto
    > Mail: lanzongwei@gmail.com
    > Created Time: 2020-08-29 20:14:55
 ************************************************************************/

#define GOODOJ
#define SYNC 0

#ifdef GOODOJ
#include <bits/stdc++.h>
#include <ext/pb_ds/priority_queue.hpp>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/rope>
#include <chrono>
#include <random>
using namespace __gnu_pbds;
using namespace __gnu_cxx;
#else
#include <iostream>
#include <cstdio>
#include <cmath>
#include <set>
#include <algorithm>
#include <cstring>
#include <string>
#include <map>
#include <deque>
#include <vector>
#include <limits>
#include <cassert>
#include <sstream>
#include <iterator>
#include <functional>
#endif
using namespace std;

struct InputOutputStream {

    enum { SIZE = 1000001 };

    char ibuf[SIZE], *s, *t, obuf[SIZE], *oh;

    bool eof;



    InputOutputStream() : s(), t(), oh(obuf), eof(false) {}

    ~InputOutputStream() { fwrite(obuf, 1, oh - obuf, stdout); }



    inline char read() {

        if (s == t) t = (s = ibuf) + fread(ibuf, 1, SIZE, stdin);

        return s == t ? -1 : *s++;

    }



    inline InputOutputStream &operator>>(char* x) {

        static char c;

        for (c = read(); isspace(c); c = read())

            if (c == -1) {eof = true; return *this;}

        for (; !isspace(c); c = read()) *x = c, ++x;

        *x = 0;

        return *this;

    }



    template <typename T>

    inline InputOutputStream &operator>>(T &x) {

        static char c;

        static bool iosig;

        for (c = read(), iosig = false; !isdigit(c); c = read()) {

            if (c == -1) {eof = true; return *this;}

            iosig |= c == '-';

        }

        for (x = 0; isdigit(c); c = read()) x = x * 10 + (c ^ '0');

        if (iosig) x = -x;

        return *this;

    }



    inline void print(char c) {

        if (oh == obuf + SIZE) {

            fwrite(obuf, 1, SIZE, stdout);

            oh = obuf;

        }

        *oh++ = c;

    }



    template <typename T>

    inline void print(T x) {

        static int buf[23], cnt;

        if (x != 0) {

            if (x < 0) print('-'), x = -x;

            for (cnt = 0; x; x /= 10) buf[++cnt] = x % 10 | 48;

            while (cnt) print((char)buf[cnt--]);

        } else print('0');

    }



    template <typename T>

    inline InputOutputStream &operator<<(const T &x) {

        print(x);

        return *this;

    }



    inline void print(const char* x) {

        for(; *x; x++)

            print(*x);

    }

} io;



#ifndef DEBUG

#define cin io

#define cout io

#endif

#define endl '\n'
#define fep(i,b,e) for(int i=(b);i<(e);++i)
#define rep(i,x) for(int i=0;i<(x);++i)
#define rap(i,x) for(auto& i : (x))
#define seg(t) (t).begin(), (t).end()
#define ep emplace_back
#define mkp make_pair
#define qxx(i,x) for(int i = head[x]; ~i; i = node[i].nex)
#define F first
#define S second
#define lowbit(x) ((-(x))&(x))
#define RE register
#define getchar() getchar_unlocked()
#ifdef DEBUG
void err(istream_iterator<string>){}
template<typename T, typename... Args>
void err(istream_iterator<string> it, T a, Args... args) {
	cerr << *it << " = " << a << ' ';
	err(++it, args...);
}
#define debug(args...) {string _s=#args;replace(seg(_s),',',' ');\
cerr<<"DEBUG:";istringstream it(_s);\
err(istream_iterator<string>(it), args);cerr<<endl;}
#else
#define debug(...)
#endif

template<typename T> inline bool cmax(T& a,const T& b) {return a<b?a=b,1:0;}
template<typename T> inline bool cmin(T& a,const T& b) {return a>b?a=b,1:0;}

#ifdef GOODOJ
mt19937 rng((uint32_t)chrono::steady_clock::now().time_since_epoch().count());
typedef __gnu_pbds::priority_queue<int> pq;
#endif
typedef std::string str;
typedef long long ll;
typedef double db;
typedef pair<int, int> pa;

const double P = acos(-1.0), eps = 1e-9;
struct point { db x ,y;};
inline int sign(db a) {return a < -eps ? -1 : a > eps;}
#define dot(p1,p2,p3) ((p2.x-p1.x)*(p3.x-p1.x)+(p2.y-p1.y)*(p3.y-p1.y))
#define cross(p1,p2,p3) ((p2.x-p1.x)*(p3.y-p1.y)-(p3.x-p1.x)*(p2.y-p1.y))
#define crossOp(p1,p2,p3) sign(cross(p1,p2,p3))

const int Ma = 1e6 + 1000, inf = 0x3f3f3f3f, mod = 1e9 + 7;

bool is[Ma]; int prim[Ma], id[Ma];
int cnt;
void dbb() {
	is[0] = is[1] = true;
	for (int i = 2; i < Ma; i++) {
		if (!is[i]) prim[cnt++] = i, id[i] = cnt - 1;
		for (int j = 0; j < cnt and prim[j] * i < Ma; j++) {
			is[prim[j] * i] = true;
			if (i % prim[j] == 0) break;
		}
	}
}

int ct[Ma]; bool pr;
void gen(int tt) {
	if (!pr) return ;
	for (int i = 0; i < cnt and tt > 1; i++) if (tt % prim[i] == 0) {
		if (ct[i]) pr = false;
		while (tt % prim[i] == 0) {
			
			++ct[i];
			tt /= prim[i];
		}
	}
	if (tt != 1) ++ct[id[tt]];
}
int a[Ma];

signed main() {
	#if SYNC==0
    ios::sync_with_stdio(false);
    cin.tie(0);
    #endif
	int n; cin >> n;
	int t = 0;
	dbb(); pr = true;
	rep (i, n) {
		cin >> a[i];
		gen(a[i]);
		if (t == 0) t = a[i];
		else t = __gcd(t, a[i]);
	}
	if (pr ) cout << "pairwise coprime" << endl;
	else if (t == 1)cout << "setwise coprime" << endl;
	else cout << "not coprime" << endl;
    
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:257:9: error: 'struct InputOutputStream' has no member named 'tie'
  257 |     cin.tie(0);
      |         ^~~