Hackerrank solution

error.go

func diagonalDifference(arr [][]int32) int32 {
    i:=0
    j:=0
    var c int =0
    var d int = 0
    for(i<len(arr)){
        for(j<len(arr)){
            if(i==j){
                c = c+ int(arr[i][j])
            }else if(i+j<len(arr)){
                d = d+ int(arr[i][j])
            }
        }
    }

    if((c-d)>0){
        return int32(c-d)
    } else{
        return int32(d-c)
    }
}