From 02a4aabd9e0829a55fecf8516a1aab0dd9c1efb4 Mon Sep 17 00:00:00 2001
From: Zengtudor <Zengtudor@outlook.com>
Date: Thu, 14 Nov 2024 13:50:09 +0800
Subject: [PATCH] update

---
 src/20241113/T538697.cpp | 58 ++++++++++++++++++++++++++++------------
 1 file changed, 41 insertions(+), 17 deletions(-)

diff --git a/src/20241113/T538697.cpp b/src/20241113/T538697.cpp
index f061f1a..bc48b24 100644
--- a/src/20241113/T538697.cpp
+++ b/src/20241113/T538697.cpp
@@ -1,4 +1,6 @@
+#include <algorithm>
 #include <cstdint>
+#include <cstring>
 #include <iostream>
 
 using ll = int64_t;
@@ -6,33 +8,55 @@ using ll = int64_t;
 auto &ci = std::cin;
 auto &co = std::cout;
 
-const ll mn = 1e6+5;
-ll n;
-ll *a = new ll[mn], *sa = new ll[mn];
+const ll mxn = 1e6+5;
+ll *a{new ll[mxn]}, *fcts{new ll[mxn]}, *mnfct{new ll[mxn]};
+auto ispm = new bool[mxn];
 
 ll lb(ll n){
     return n&(-n);
 }
 
-
 int main(){
+    ll n;
     ci>>n;
-    for(ll i{1};i<=n;i++){
+    ll mxa{};
+    for(ll i{0};i<n;i++){
         ci>>a[i];
+        mxa = std::max(mxa, a[i]);
     }
-    for(ll i{1};i<(1<<(n));i++){
-        ll now{i};
-        ll san{};
-        for(ll j{0};j<=n;j++){
-            if((1<<j)&i){
-                sa[++san]=a[j+1];
+    std::fill(ispm, ispm+mxa+1, true);
+    ispm[1]=false;
+    for(ll i{1};i<=mxa;i++)mnfct[i]=i;
+    for(ll i{2};i<=mxa;i++){
+        if(ispm[i]){
+            for(ll j{i+i};j<=mxa;j+=i){
+                if(ispm[j]){
+                    ispm[j]=false;
+                    mnfct[j]=i;
+                }
             }
         }
-        // for(ll i{1};i<=san;i++){
-        //     co<<sa[i]<<' ';
-        // }
-        // co<<'\n';
-        
     }
 
-}
\ No newline at end of file
+    // for(ll i{1};i<=mxa;i++)co<<mnfct[i]<<' ';
+    // co<<'\n';
+
+    for(ll i{1};i<(1<<(n));i++){
+        // std::fill(fcts, fcts+n, 0);
+        memset(fcts, 0, sizeof(ll)*mxa);
+        for(ll j{0};j<n;j++){
+            if((1<<j)&i){
+                ll now = a[j];
+                while(now!=1){
+                    // co<<nv(now)<<'\n';
+                    fcts[mnfct[now]]++;
+                    now/=mnfct[now];
+                }
+                
+            }
+        }
+    }
+    // for(ll i{1};i<=mxa;i++)co<<fcts[i]<<' ';
+    // co<<'\n';
+    
+}