arduino handle with dictionary {key,value} please give examples.

float n = WiFi.scanNetworks();

Serial.printf("%d network(s) found\n", n); //Scan start … 5 network(s) found

if (n == 0) {
Serial.println(“no wifi`s are connected”);
}
else {
int a[20];
float array1[20];
int j = 0;
for (float i = 0; i < n; i++)
{
Serial.printf("%d: %d, Ch:%d (%ddBm)\n", i + 1, WiFi.SSID(i).c_str(), WiFi.channel(i), WiFi.RSSI(i)); //1: Tech_D005107, Ch:6 (-72dBm)
}

at this point i need to use dictionary
these are scanned networks

for(i=0;i<n;i++)

arr[n]={ssid:rssi,…,…,…,…n}

and i need to sort it.

and publish to local server or any server.

i need to publish
ssid,rssi of scanned network and ssid of my ESP

            for (float i = 0; i < n; i++)

Why on earth are you using a float as the index into an array? Do you really expect to be able to get the 3.14159th element?

at this point i need to use dictionary

Why? A dictionary has key/value pairs, and uses dynamic memory allocation. What will your key be? What uniquely identifies an entry?

and i need to sort it

Based on?

and publish to local server or any server

How do you plan to do this?