Two string - use gets, and array

Twostring10.cpp

#include <iostream>
#include <cstdio>
#include <string>
#include <string.h>
#include <queue>
#include <math.h>
#include <cmath>
#include <map>
#include <set>
#include <vector>
#include <algorithm>
#include <bitset>
#include <ctype.h>
#include <cassert>
#include <stack>
#include <fstream>
#include <unordered_map>
#include <ctime>

using namespace std;

#define snd second
#define fst first
#define mp make_pair
#define ll long long
#define ull unsigned long long
#define ld long double
#define pb push_back
#define left _left

const ld pi = 3.14159265359;

template < typename T > T abs(T x)
{
    return x > 0 ? x : -x;
}

const int maxn = 100005;

char s[maxn], t[maxn];
int was[30];

int main()
{
	//gen();
	//freopen("a.in", "r", stdin);
	//srand(time(NULL));
	
	int tt;
	scanf("%d\n", &tt);
	while (tt--)
	{
		gets(s);
		gets(t);
		int n = strlen(s);
		for (int i = 0; i < 30; i++)
			was[i] = 0;
		for (int i = 0; i < n; i++)
			was[s[i] - 'a'] = 1;
		bool good = false;
		n = strlen(t);
		for (int i = 0; i < n; i++)
			if (was[t[i] - 'a'])
				good = true;
		if (good)
			puts("YES");
		else
			puts("NO");
	}
	

	
	return 0;
}