@[liyirong567](/user/955954) 会快排吗
by YGW6 @ 2023-09-09 17:06:38
```cpp
#include <bits/stdc++.h>
using namespace std;
long long ans=1,n,a[200010],b[2];
int main(){
cin>>n;
for(int i=1;i<=n;i++){
cin>>a[i];
}
sort(a+1,a+n+1);
if(n==1){
cout<<a[1]<<" "<<1;
return 0;
}
for(int i=2;i<=n;i++){
if(a[i]==a[i-1]){
ans++;
}
else{
b[0]=a[i-1];
b[1]=ans;
ans=1;
cout<<b[0]<<" "<<b[1]<<endl;
}
if(i==n){
b[0]=a[i];
b[1]=ans;
cout<<b[0]<<" "<<b[1]<<endl;
}
}
return 0;
}
```
by rnfmabj5114 @ 2023-09-09 17:08:30
```cpp
#include<bits/stdc++.h>
using namespace std;
int n=1,x,a[200001];
int main()
{
cin>>x;
for(int i=1;i<=x;i++)
cin>>a[i];
sort(a+1,a+1+x);
for(int i=2;i<=x;i++)
{
if(a[i]==a[i-1])n++;
else
{
cout<<a[i-1]<<" "<<n<<endl;
n=1;
}
}
cout<<a[x]<<" "<<n;
return 0;
}
```
by YGW6 @ 2023-09-09 17:09:50