# Migratory Birds solution – PHP-

I wrote this solution for this practice in PHP but it’s not work for all case:

Given an array of bird sightings where every element represents a bird type id, determine the id of the most frequently sighted type. If more than 1 type has been spotted that maximum amount, return the smallest of their ids.

arr=[1,1,2,2,3]

Example

There are two each of types 1 and 2 , and one sighting of type .3 Pick the lower of the two types seen twice: type 1.

Function Description

Complete the migratoryBirds function in the editor below.

migratoryBirds has the following parameter(s):

int arr[n]: the types of birds sighted
Returns

int: the lowest type id of the most frequently sighted birds
Input Format

The first line contains an integer,n , the size of arr .
The second line describes arr as n space-separated integers, each a type number of the bird sighted.

Constraints
5 < n < 2 X 10 2

It is guaranteed that each type is 1,2 ,3 ,4 , or 5 .

Sample Input 0

6

1 4 4 4 5 3

Sample Output 0

4

this is my code

``````
function migratoryBirds(\$arr) {
\$length=count(\$arr);
\$a1=0;\$a2=0;\$a3=0;\$a4=0;\$a5=0;

for(\$i=0; \$i < \$length; \$i++){

if(\$arr[\$i]==1){
\$a1++;
}
if(\$arr[\$i]==2){
\$a2++;
}
if(\$arr[\$i]==3){
\$a3++;
}
if(\$arr[\$i]==4){
\$a4++;
}
if(\$arr[\$i]==5){
\$a5++;
}
}

if(\$a1>=\$a2 && \$a1>=\$a3 && \$a1>=\$a4 && \$a1>=\$a5){
\$result=1;
}
if(\$a2>=\$a1 && \$a2>=\$a3 && \$a2>=\$a4 && \$a2>=\$a5){
\$result=2;
}
if(\$a3>=\$a2 && \$a3>=\$a1 && \$a3>=\$a4 && \$a3>=\$a5){
\$result=3;
}
if(\$a4>=\$a2 && \$a4>=\$a3 && \$a4>=\$a1 && \$a4>=\$a5){
\$result=4;
}
if(\$a5>=\$a2 && \$a5>=\$a3 && \$a5>=\$a4 && \$a5>=\$a1){
\$result=5;
}

return \$result;
}

``````

How can I solve it?

### >Solution :

``````if(\$a1>=\$a2 && \$a1>=\$a3 && \$a1>=\$a4 && \$a1>=\$a5){
\$result=1;
}
else if(\$a2>=\$a1 && \$a2>=\$a3 && \$a2>=\$a4 && \$a2>=\$a5){
\$result=2;
}
else if(\$a3>=\$a2 && \$a3>=\$a1 && \$a3>=\$a4 && \$a3>=\$a5){
\$result=3;
}
else  if(\$a4>=\$a2 && \$a4>=\$a3 && \$a4>=\$a1 && \$a4>=\$a5){
\$result=4;
}
else if(\$a5>=\$a2 && \$a5>=\$a3 && \$a5>=\$a4 && \$a5>=\$a1){
\$result=5;
}
else{
\$result=1;
}
``````