2023 rcpc

2023/rcpc/d1/editorial/B. Coins.cpp

@@ -0,0 +1,38 @@
+/// Gheorghies Alexandru
+#include <bits/stdc++.h>
+
+using namespace std;
+typedef long long ll;
+typedef pair<ll,ll> pll;
+
+bool isPrime(ll num){
+    if(num < 2) 
+        return false;
+        
+    for(ll divisor = 2; divisor * divisor <= num; divisor++){
+        if(num % divisor == 0)
+            return false;
+    }
+    return true;
+}
+int main()
+{
+    ios_base::sync_with_stdio(false); cin.tie(0);
+
+    ll k;
+    cin>>k;
+    for(ll i = 0; i < k; i++){
+        ll n;
+        cin>>n;
+        if(n == 9)
+            cout<<"Second\n";
+        else if(n == 3)
+            cout<<"First\n";
+        else if(isPrime(n))
+            cout<<"Second\n";
+        else
+            cout<<"First\n";
+    }
+    return 0;
+}
+