feat: 添加两个新的算法实现文件

添加了vowel-spellchecker.cpp和P8901.cpp两个算法实现文件。P8901.cpp实现了基于筛法的素数处理功能，包含输入处理和主逻辑

src/9/14/vowel-spellchecker.cpp

@@ -0,0 +1,3 @@
+int main(){
+    
+}

src/9/21/P8901.cpp

@@ -0,0 +1,57 @@
+#include <bitset>
+#include <cstdint>
+#include <cstdio>
+#include <iostream>
+#include <istream>
+#include <vector>
+
+using ll = int64_t;
+
+const ll maxa=5e6+5;
+std::vector<ll> a, t;
+std::bitset<maxa> isp;
+
+static inline void solve(){
+    ll n;
+    std::cin>>n;
+    a.clear();
+    a.resize(n+1);
+    for(ll i=1;i<=n;i++){
+        ll tmp;
+        std::cin>>tmp;
+        a[i]=t[tmp];
+    }
+
+}
+
+int main(){
+    std::iostream::sync_with_stdio(false);
+    std::cin.tie(nullptr);
+
+    isp.set();
+    for(ll i=2;i<isp.size();i++){
+        if(!isp[i])continue;
+        for(ll j=2;i*j<isp.size();j++){
+            isp[i*j]=false;
+        }
+    }
+    // for(ll i=1;i<=100;i++)if(isp[i])std::cout<<i<<"\n";
+    t.resize(maxa);
+    for(ll i=1;i<t.size();i++){
+        ll nt=0,ni=i;
+        while(ni>=4){
+            if(isp[ni]){
+                t[i]=nt;
+                break;
+            }
+            nt++;
+            ni-=4;
+        }
+    }
+    for(ll i=1;i<=100;i++)printf("t[%lld]=%lld\n",i,t[i]);
+    ll T;
+    std::cin>>T;
+    while(T--){
+        solve();
+    }
+}