delete pics to save space

2023-08-03 09:22:52 +08:00
commit de60cd6ed4
1334 changed files with 66221 additions and 0 deletions
--- a/1.2303.cpp
+++ b/1.2303.cpp
@ -0,0 +1,19 @@
+#include<cstdio>
+typedef long long LL;
+int main()
+{
+	LL n;
+    scanf("%lld",&n);
+    LL ans=n,i;
+    for(i=2;i*i<=n;++i)
+		if(n%i==0)
+		{
+	        int b=0;
+	        while(n%i==0) ++b,n/=i;
+	        ans/=i;
+	        ans*=b*i-b+i;
+	    }
+	if(n>1) ans/=n,ans*=n+n-1; 
+    printf("%lld\n",ans);
+    return 0;
+}