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#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
#define IOS ios_base::sync_with_stdio(false);cin.tie(nullptr)
#define ll long long
#define ull unsigned long long
#define dbl double
#define Toggle(n,i) (n^((ll)1<<i))
bool Check(int N, int pos) { return (bool)(N & (1 << pos)); }
#define Set(n,i) (n|((ll)1<<i))
#define Reset(n,i) (n&(~((ll)1<<i)))
#define fo(a,x,y) for(int i=(x);i<=(y);++i){cout<<a[i]<<" ";}cout<<endl;
#define me(arr,val) memset(arr,val,sizeof arr)
#define INF 1e9
#define INFD DBL_MAX
#define INFL LLONG_MAX
#define f first
#define s second
#define pra(a) for(auto i:a){cout<<i<<endl;}
#define all2(a,start,n) a.begin()+start,a.begin()+start+n
#define all(a) a.begin(),a.end()
#define eb emplace_back
#define em emplace
#define pb push_back
#define sz() size()
#define fl fflush(stdout)
using namespace std;
using namespace __gnu_pbds;
template <typename T>
int SIZE(T(&t))
{
	return t.size();
}
template <typename T, size_t N>
int SIZE(T (&t)[N])
{
	return N;
}
string to_string(char t)
{
	return "'" + string({t}) + "'";
}
string to_string(bool t)
{
	return t ? "true" : "false";
}
string to_string(const string &t, int x1 = 0, int x2 = 1e9)
{
	string ret = "";
	for (int i = min(x1, SIZE(t)), _i = min(x2, SIZE(t) - 1); i <= _i; ++i)
	{
		ret += t[i];
	}
	return '"' + ret + '"';
}
string to_string(const char *t)
{
	string ret(t);
	return to_string(ret);
}
template <size_t N>
string to_string(const bitset<N> &t, int x1 = 0, int x2 = 1e9)
{
	string ret = "";
	for (int i = min(x1, SIZE(t)); i <= min(x2, SIZE(t) - 1); ++i)
	{
		ret += t[i] + '0';
	}
	return to_string(ret);
}
template <typename T, typename... Coords>
string to_string(const T(&t), int x1 = 0, int x2 = 1e9, Coords... C);
template <typename T, typename S>
string to_string(const pair<T, S> &t)
{
	return "(" + to_string(t.first) + ", " + to_string(t.second) + ")";
}
template <typename T, typename... Coords>
string to_string(const T(&t), int x1, int x2, Coords... C)
{
	string ret = "[";
	x1 = min(x1, SIZE(t));
	auto e = begin(t);
	advance(e, x1);
	for (int i = x1, _i = min(x2, SIZE(t) - 1); i <= _i; ++i)
	{
		ret += to_string(*e, C...) + (i != _i ? ", " : "");
		e = next(e);
	}
	return ret + "]";
}
template <int Index, typename... Ts>
struct print_tuple
{
	string operator()(const tuple<Ts...> &t)
	{
		string ret = print_tuple<Index - 1, Ts...>{}(t);
		ret += (Index ? ", " : "");
		return ret + to_string(get<Index>(t));
	}
};
template <typename... Ts>
struct print_tuple<0, Ts...>
{
	string operator()(const tuple<Ts...> &t)
	{
		return to_string(get<0>(t));
	}
};
template <typename... Ts>
string to_string(const tuple<Ts...> &t)
{
	const auto Size = tuple_size<tuple<Ts...>>::value;
	return print_tuple<Size - 1, Ts...>{}(t);
}
void dbgr() { ; }
template <typename Heads, typename... Tails>
void dbgr(Heads H, Tails... T)
{
	cerr << to_string(H) << " | ";
	dbgr(T...);
}
void dbgs() { ; }
template <typename Heads, typename... Tails>
void dbgs(Heads H, Tails... T)
{
	cerr << H << " ";
	dbgs(T...);
}
// #undef LOCAL
#ifdef LOCAL
#define dbgv(...) cerr << to_string(__VA_ARGS__) << endl;
#define dbga(...)                         \
	cerr << "[" << #__VA_ARGS__ << "]: "; \
	dbgv(__VA_ARGS__);
#define dbgr(...)      \
	dbgr(__VA_ARGS__); \
	cerr << endl;
#define dbg(...)                          \
	cerr << "[" << #__VA_ARGS__ << "]: "; \
	dbgr(__VA_ARGS__);
#else
#define dbgv(...) 42
#define dbga(...) 42
#define dbgr(...) 42
#define dbg(...) 42
#endif
ll bigMod(ll x,ll y,ll M)
{
    ll res=1;
    x=x%M;
    while(y)
    {
        if(y%2)
        {
            res=(res*x)%M;
            --
            y;
        }
        else
        {
            x=(x*x)%M;
            y/=2;
        }
    }
    return res;
}
int dx[]= {0, 0, -1, +1}; //vertical horizontal
int dy[]= {-1, +1, 0, 0}; //vertical horizontal
//int dx[]={+1,+1,-1,-1,+2,-2,+2,-2};//knights move
//int dy[]={+2,-2,+2,-2,+1,+1,-1,-1};//knights move
//int dx[]={+1,-1,0,0,+1,+1,-1,-1};//vertical horizontal diagonal
//int dy[]={0,0,+1,-1,-1,+1,+1,-1};//vertical horizontal diagonal
/*typedef tree<int, null_type,less<int>, rb_tree_tag,
tree_order_statistics_node_update>indexed_set;
for set use above*/
typedef tree<pair<int,int>, null_type,less<pair<int, int>>, rb_tree_tag,
        tree_order_statistics_node_update> indexed_multiset;
typedef pair<int, int> ii;
/// Random number generator ///
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
///mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
/// for 64 bit use above
///uniform_int_distribution<int>(l,r)(rng)
/// 10 digit random primes ///
/*5915587277
1500450271
3267000013
5754853343
4093082899
9576890767
3628273133
2860486313
5463458053
3367900313*/
#define MOD 1000000007ll
#define N 100005
 
int main()
{
	IOS;
	int tt;
	cin >> tt;
	for (int cc = 1; cc <= tt; ++cc) {
        int n;
        cin >> n;
        int a[n];
        for (int i = 0; i < n; ++i) {
            cin >> a[i];
        }
        string s;
        cin >> s;
        int Min, Max;
        if (a[0] == -1) {
            Min = 0;
            Max = INF;
        } else {
            Min = a[0];
            Max = a[0];
        }
        bool ok = 1;
        for (int i = 1; i < n; ++i) {
            if (s[i - 1] == '>') {
                Min = min(0, Min - 1);
                --Max;
            } else if (s[i - 1] == '<') {
                ++Min;
                Max = INF;
            }
            if (Min < 0) {
                ++Min;
            }
            if (Min > Max) {
                ok = 0;
                break;
            }
            if (a[i] != -1 && (a[i] < Min || a[i] > Max)) {
                ok = 0;
                break;
            }
            if (a[i] != -1) {
                Min = Max = a[i];
            }
        }
        cout << (ok ? "YES" : "NO") << "\n";
	}
    return 0;
}

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Runtime error #stdin #stdout 0.01s 5540KB

stdin

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Standard input is empty

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